Journal articles on the topic 'Night vision devices'

To see the other types of publications on this topic, follow the link: Night vision devices.

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Night vision devices.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Medvedev, A. V., and A. V. Grinkevich. "Miniaturization of night-vision devices." Journal of Optical Technology 69, no. 10 (October 1, 2002): 764. http://dx.doi.org/10.1364/jot.69.000764.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Robinson, J., S. M. Story, and T. Kuyk. "Evaluation of Two Night–Vision Devices." Journal of Visual Impairment & Blindness 84, no. 10 (December 1990): 539–41. http://dx.doi.org/10.1177/0145482x9008401015.

Full text
Abstract:
Night-blind individuals often have restricted visual fields or other visual impairments that limit their ability to travel at night. The study reported here compared two night-vision devices: one wide-angle light and one with a high-intensity beam. It concluded that no one night light is best for all individuals and that depending on the cause of the night blindness, a smaller angle, high-intensity light may be more useful than a wider angle one.
APA, Harvard, Vancouver, ISO, and other styles
3

Grinkevich, A. V. "Optical systems of night-vision devices." Journal of Optical Technology 66, no. 12 (December 1, 1999): 1022. http://dx.doi.org/10.1364/jot.66.001022.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Best, P. S., D. J. Collins, D. Piccione, and D. Ferrett. "Night vision devices for ground environment." IEEE Aerospace and Electronic Systems Magazine 14, no. 4 (April 1999): 5–8. http://dx.doi.org/10.1109/62.756077.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

LaFiandra, M., and W. Harper. "A Comparison of Soldier Performance on a Target Detection and Identification Task Using Fused Sensor Technology and Current Night Vision Technology." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 51, no. 19 (October 2007): 1332–35. http://dx.doi.org/10.1177/154193120705101912.

Full text
Abstract:
Soldiers rely on night vision devices to enhance their ability to detect and identify objects of interest in environments of reduced luminosity. The night vision device that is currently being used by United States Army Soldiers deployed in Iraq and Afghanistan is based on Image Intensifying (I2) technology. An alternative technology for night vision devices is to use a fused sensor that combines I2 technology and a thermal sensor. The purpose of this study is to compare Soldier performance on detecting and identifying human targets while using a night vision device with I2 technology to their performance while using prototype fused sensors in a field setting. Five retired Special Forces Soldiers, all of which had experience with using night vision devices which employed I2 technology and with thermal imaging technology participated in the study. Participants were asked to detect targets at ranges varying from 50–250 meters and to identify targets as military or civilian at ranges of 25–150 meters. Significant main effects of type of night vision device type (p < 0.0093) and range (p < 0.0003) were found on the ability of the participants to both detect and identify targets. In addition, a significant interaction was determined (p < 0.0219) on the ability of participants to detect targets. Focused analysis revealed participants were more able to correctly detect targets with the I2 technology than with fused sensors at targets ranging from 200–250 meters, and were more able to correctly identify targets with I2 than with fused sensors. The results from this study clearly indicate the prototype fused sensor tested here did not outperform a night vision device based solely on I2 technology, and in several cases demonstrated poorer performance.
APA, Harvard, Vancouver, ISO, and other styles
6

Norton, P. "Third-generation sensors for night vision." Opto-Electronics Review 14, no. 1 (January 1, 2006): 1–10. http://dx.doi.org/10.2478/s11772-006-0001-5.

Full text
Abstract:
AbstractThird generation sensors are under development to enhance capabilities for target detection and identification, threat warning, and 3D imaging. Distinct programs for both cooled HgCdTe and uncooled microbolometer devices are part of this thrust. This paper will describe the technology for HgCdle two-colour, high-definition imaging sensors and threat warning devices, avalanche photodiode arrays for 3D imaging, and the supporting technology being developed to enhance the readouts that support these devices. Uncooled detector initiatives will also be described to reduce pixel size in conjunction with the production of 480×640 arrays. Finally, efforts are also beginning to move both photon and thermal detectors closer to radiative-limited performance while simultaneously reducing the cooling requirements for photon detectors.
APA, Harvard, Vancouver, ISO, and other styles
7

Medvedev, A. V., A. G. Popov, A. V. Kislyakov, and S. N. Knyazeva. "Night-vision devices with nonbattery supply systems." Journal of Optical Technology 71, no. 5 (May 1, 2004): 311. http://dx.doi.org/10.1364/jot.71.000311.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Rensing, N., E. Weststrate, E. Giller, P. Zavracky, E. Peli, A. Bowers, and G. Luo. "Night vision devices for the visually impaired." Journal of Vision 4, no. 11 (November 1, 2004): 7. http://dx.doi.org/10.1167/4.11.7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Stoychev, Iliya, and Iliyan Hutov. "NIGHT VISION MONOCULAR - BASIC ELEMENTS AND DEVELOPMENT TRENDS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 4 (June 22, 2024): 260–68. http://dx.doi.org/10.17770/etr2024vol4.8211.

Full text
Abstract:
This article examines the fundamental elements and evolving trends in night vision monocular devices. The topicality of this topic lies in the ongoing advancements in sensor technologies, optics, and digital processing, which continually enhance the performance and accessibility of night vision devices. The purpose of this study is to provide a comprehensive overview of the basic components and recent developments in night vision monoculars. The study adopts a comparative analysis approach, examining the key features and functionalities of different generations of night vision technology and investigates emerging trends such as miniaturization, improved image resolution, and integration with digital interfaces. The methodology involves a thorough review of literature encompassing scientific articles, patents, and technical reports related to night vision technologies. Key aspects studied include image intensifier tubes, infrared sensors, objective lenses, and display systems. Additionally, recent research articles, technical reports, and product specifications are analyzed to identify emerging trends in monocular design and performance, in digital image processing algorithms and the integration of augmented reality functionalities. The findings underscore the importance of ongoing research and development in improving the performance and accessibility of night vision monoculars. Key conclusions include the growing role of digital imaging in night vision devices, the potential for further miniaturization of components, and the importance of optimizing cost-efficiency without compromising performance. In summary, this article provides insights into the foundational components and evolving trends of night vision monoculars, emphasizing the technological advancements driving the development of next-generation night vision devices. The findings contribute to a deeper understanding of the current state and future prospects of night vision technology.
APA, Harvard, Vancouver, ISO, and other styles
10

Shapiro, Maura. "Simplifying night vision with advanced electronics." Scilight 2023, no. 10 (March 10, 2023): 101105. http://dx.doi.org/10.1063/10.0017646.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Agbenyega, Jonathan. "Cell phones could double as night vision devices." Materials Today 13, no. 6 (June 2010): 11. http://dx.doi.org/10.1016/s1369-7021(10)70100-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Bailey, William R. "The Effects of Active Head Rotation on the Vestibulo-Ocular Reflex during Visual Pursuit of a Target Displayed on the Integrated Helmet and Display Sight Subsystem." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 49, no. 17 (September 2005): 1653–57. http://dx.doi.org/10.1177/154193120504901733.

Full text
Abstract:
Military helicopter pilots are relying more on night vision devices as the number of night operations continues to increase. However, previous studies have indicated that night vision devices do not provide adequate peripheral orientation and motion cues. This study aimed to develop a new technique for examining sustained reductions in the vestibuloocular reflex (VOR) as a means of improving motion discrimination among pilots that use night vision devices. Nine participants performed a series of active head rotation tasks designed to establish a baseline VOR measurement in the control condition, and to suppress the VOR in the experimental condition. The results of the active head rotation tasks revealed that the VOR was not significantly reduced in the experimental condition. Future research will be aimed at altering the task duration and stimuli to determine whether active head rotation is capable of reducing the VOR.
APA, Harvard, Vancouver, ISO, and other styles
13

Das, Sanjoy, and Yunlong Zhang. "Color Night Vision for Navigation and Surveillance." Transportation Research Record: Journal of the Transportation Research Board 1708, no. 1 (January 2000): 40–46. http://dx.doi.org/10.3141/1708-05.

Full text
Abstract:
Fusion of registered images of night scenery that are obtained from cameras tuned to different band-widths will be a significant component of future night-vision devices. A new algorithm for such multispectral image fusion is described. The algorithm performs gray-scale image fusion using a method based on principal components. The monochrome fused image is then colored by means of a suitable pseudocoloring technique to produce the fused color output image. The approach can easily be used for any number of bandwidths. Examples illustrate the algorithm’s use to fuse an intensified low-light visible image with another image obtained from a single forward-looking infrared camera. The algorithm may be implemented readily in hardware for use in night-vision devices as an important aid to surveillance and navigation in total darkness. The applicability of the technology to transportation is also discussed.
APA, Harvard, Vancouver, ISO, and other styles
14

Gupta, S. D., K. K. Banerjee, A. K. Musla, G. P. Gupta, and V. K. Beri. "Optical System for Night Vision Devices and their Applications." IETE Technical Review 5, no. 1 (January 1988): 9–13. http://dx.doi.org/10.1080/02564602.1988.11438209.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Mahmood, Salman, Yaser Daanial Khan, and M. Khalid Mahmood. "A treatise to vision enhancement and color fusion techniques in night vision devices." Multimedia Tools and Applications 77, no. 2 (February 13, 2017): 2689–737. http://dx.doi.org/10.1007/s11042-017-4365-y.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Kaiser, Mary K., and David C. Foyle. "Human Factors Issues in the Use of Night Vision Devices." Proceedings of the Human Factors Society Annual Meeting 35, no. 20 (September 1991): 1502–6. http://dx.doi.org/10.1177/154193129103502018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Sokurenko, Vyacheslav, and Oleg Sokurenko. "AUTOMATED SYNTHESIS OF FAST LENSES FOR MODERN NIGHT VISION DEVICES." Bulletin of Kyiv Polytechnic Institute. Series Instrument Making, no. 67(1) (June 30, 2024): 18–24. http://dx.doi.org/10.20535/1970.67(1).2024.306721.

Full text
Abstract:
This article is devoted to research of the possibilities of automated design of fast and high-quality multi-lens objectives intended for use in night vision devices with modern image intensifier tubes of generation 4 and 4+, which have photocathodes with a diameter of up to 18 mm. Such image intensifier tubes are characterized by extended spectral sensitivity, high signal-to-noise ratio, and increased resolution. The computer program PODIL, developed earlier for the automated design of arbitrary optical systems, was applied to find out prescription data of fast lenses. For the parametric synthesis of optical systems, the modified evolutionary algorithm implemented in the program was used. The article presents the general methodology and results of automated parametric synthesis of a series of optical systems of objectives with different focal lengths, which contain from 7 to 9 lenses with spherical surfaces. The synthesized lenses provide angular field of view of 10°, 37° and 60° without any vignetting of axial and peripheral beams. The correspondent F numbers are 1.5, 1.33, and 1.4. The working spectral range of the designed lenses is determined by the spectral sensitivity of the photocathodes of the image intensifier tubes. In this research, it covers wavelengths from 0.45 to 0.9 μm. The longitudinal size of the designed optical systems (i.e. the distance from the first optical surface to the photocathode’s plane) is found within the range from 80 to 106 mm. The presented results of aberration analysis confirm the high image quality of the obtained optical systems. In particular, the maximum spatial frequencies of the evaluated polychromatic diffraction modulation transfer functions of the lenses over the entire field in both meridional and sagittal planes exceed 50 mm-1. The maximum values of relative distortion of the lenses are obtained within the range from 1% to 2%.
APA, Harvard, Vancouver, ISO, and other styles
18

Wu, Si Qi, Yao Hu, Wei Yu Yu, and Jiu Chao Feng. "A Novel Color-Image Enhancement Approach for Night-Vision Images." Applied Mechanics and Materials 556-562 (May 2014): 4750–54. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.4750.

Full text
Abstract:
Night-vision devices are becoming more and more important now, but images captured by these devices often have unpleasing visual effects. According to the characteristics of night-vision images, in this paper we propose an image enhancement approach maintaining color fidelity. Firstly, the image is divided into RGB channel and decomposed into reflectance component and illuminance component. Secondly, the non-uniform illuminance component of the image is filtered again to eliminate the uneven illumination. Finally, we combine the reflectance component and the corrected illuminance component and adjust the brightness of the combined image. The experiment result shows that the proposed enhancement approach has high-performance.
APA, Harvard, Vancouver, ISO, and other styles
19

Stenius, Charlotte, Per-Anders Oskarsson, and Jonathan Svensson. "Performance of dismounted soldiers during waypoint navigation in darkness using GNSS-supported digital map or paper map." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 61, no. 1 (September 2017): 344–48. http://dx.doi.org/10.1177/1541931213601566.

Full text
Abstract:
Navigating in unknown terrain on foot in darkness is in many aspects challenging. This can be facilitated by support of GNSS positioning, digital maps and night vision devices. To investigate the advantages of technical support and its use in darkness, an experimental study was performed. In this study, dismounted soldiers equipped with a night vision device navigated in darkness with either a GPS device (with digital map) or a paper map and compass. The results showed that the distance traversed was shorter and that the soldiers needed significantly less time to navigate when supported by the GPS device compared to using a paper map and compass. The main reason for this difference was that the proportion of time in motion was significantly larger when the GPS device was used. Also, subjective ratings showed significantly higher preference for the GPS device than for the paper map and compass.
APA, Harvard, Vancouver, ISO, and other styles
20

Izzuddin, T. A., M. H. Jali, A. R. Abdullah, and R. Sudirman. "Gaze Tracking Algorithm Using Night Vision Camera." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 2 (February 1, 2018): 438. http://dx.doi.org/10.11591/ijeecs.v9.i2.pp438-446.

Full text
Abstract:
Nowadays, the advancement of medical technology has given birth into many innovative machines and devices to improve our health life, especially to those who are disabled or gifted. On some people with severe disabilities such as quadriplegia, the human eye-ball does not only serve as a vision system, but also a means of conveying information and intention to other people. This is because although quadriplegic patients suffer the loss of motor sensory functions from the neck and below, upper neck functions such as the vision system is normally spared. This enables the patient to control the movement of his/her eyeballs to convey desired information. Although many similar researches have been done, this paper proposes the use of image processing on image captured using webcam with its Infra-Red (IR) filter removed (a.k.a night vision) to achieve robustness. This allows the algorithm to properly track the location of the iris despite of its and the pupil color variations. Two image processing algorithms are then used, each with owns tradeoff between speed and accuracy. Analysis on both algorithms shows good tracking performance despite of the mentioned tradeoff.
APA, Harvard, Vancouver, ISO, and other styles
21

Grinkevich, A. V. "A fast objective with a movable component for night-vision devices." Journal of Optical Technology 70, no. 9 (September 1, 2003): 658. http://dx.doi.org/10.1364/jot.70.000658.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Charbonneau, Marie, Alain Léger, and Bernard Claverie. "Eyepiece focus and vergence/accommodation conflict: Implications for night-vision devices." Journal of the Society for Information Display 18, no. 5 (2010): 376. http://dx.doi.org/10.1889/jsid18.5.376.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Sutour, Camille, Jean-François Aujol, Charles-Alban Deledalle, and Baudouin Denis de Senneville. "Edge-Based Multi-modal Registration and Application for Night Vision Devices." Journal of Mathematical Imaging and Vision 53, no. 2 (January 8, 2015): 131–50. http://dx.doi.org/10.1007/s10851-014-0554-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Liu, You-Xuan, Rong-Huei Yi, Chien-Hsiang Lin, Zu-Po Yang, Chin-Wei Lu, and Hai-Ching Su. "Near-infrared light-emitting electrochemical cells based on the excimer emission of a cationic iridium complex." Journal of Materials Chemistry C 8, no. 41 (2020): 14378–85. http://dx.doi.org/10.1039/d0tc02805c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Xu, Yong Kui, Yuan He Tang, Xu San Yang, Xun Zhang, Huan Huan Zhang, Shui Wei Wang, Yao Liu, Gang Gao, Zhi Kai Yang, and Tan Wang. "Research on Light Amplification Panel Based on Stimulated Radiation." Materials Science Forum 663-665 (November 2010): 344–47. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.344.

Full text
Abstract:
Light amplification panel (LAP) based on laser principle is put forward in this paper. The LAP is coupled between the camera and eyepiece of the night vision devices to realize image intensification. The quality of imaging in low level light is gained enhancement. After analysis on principle of LAP, its gain, detection capability, imaging performance, noise and bandwidth are calculated theoretically. Laser media arranged alternately amplifies signals of different wavelength, broadening the bandwidth and also realizing night vision color imaging by physical mode.
APA, Harvard, Vancouver, ISO, and other styles
26

Fastowicz, Jarosław, and Piotr Lech. "The night vision distance measurement method dedicated for mobile robots." Image Processing & Communications 20, no. 4 (December 1, 2015): 23–30. http://dx.doi.org/10.1515/ipc-2015-0041.

Full text
Abstract:
Abstract The paper presents a vision based visual servoing system and active laser triangulation method for distance measurement. The proposed hybrid system is dedicated to mobile robot operating in difficult lighting conditions. The problems caused by the use of the video system in extremely underexposured 3D scene have been discussed and two devices performing the distance measurement together with an analysis measurements have been analyzed.
APA, Harvard, Vancouver, ISO, and other styles
27

Hongchang, CHENG, SHI Feng, LI Zhoukui, SHI Hongli, BAI Xiaofeng, YAN Lei, YAO Ze, WANG Miaoxin, and LI Yanhong. "Preliminary study on distinguishment method of low-level-light night vision devices." Journal of Applied Optics 42, no. 6 (2021): 1092–101. http://dx.doi.org/10.5768/jao202142.0604001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Gainutdinov, I. S., E. A. Nesmelov, and M. Kh Azamatov. "Interference filter for adaptation of aircraft signal lights to night-vision devices." Journal of Optical Technology 70, no. 5 (May 1, 2003): 377. http://dx.doi.org/10.1364/jot.70.000377.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Young, Scott, Claude Gaudette, and Benjamin Phipps. "P-36: Touch Panel Display Filtering for Portable Night Vision Compatible Devices." SID Symposium Digest of Technical Papers 42, no. 1 (June 2011): 1231–34. http://dx.doi.org/10.1889/1.3621054.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Collins, Dennis J., P. Scot Best, and Dino Piccione. "Comparing Change in Terrain Orientation Detection Distances when Driving with Night Vision Devices." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 42, no. 23 (October 1998): 1637. http://dx.doi.org/10.1177/154193129804202375.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Manton, A., and K. Webster. "An Assessment of the ANV 20/20 Focusing Aid for Night Vision Devices." Journal of the Royal Army Medical Corps 142, no. 3 (October 1, 1996): 110–13. http://dx.doi.org/10.1136/jramc-142-03-06.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Dorn, A. Walter. "Crucial Technologies for the Protection of Civilians by UN Peace Operations." Global Governance: A Review of Multilateralism and International Organizations 29, no. 2 (June 8, 2023): 245–58. http://dx.doi.org/10.1163/19426720-02902004.

Full text
Abstract:
Abstract To protect people under attack, what kinds of tools do peacekeepers need? The United Nations is gradually gaining valuable experience with sophisticated technologies for protection of civilians (POC). However, most remain underused and underevaluated, especially attack helicopters, night vision devices, and nonlethal weapons. This article presents case studies of these three crucial tools to examine their utility and to identify their shortcomings. Attack helicopters are demonstrated as a powerful through ironic symbol and an important means of robust peacekeeping in Central African Republic. Night vision devices proved essential for POC in protecting Haitians from gangs in 2007. Nonlethal weapons, like those developed on the spur of the moment in the Democratic Republic of Congo, helped the UN deal with civilian threats without recourse to lethal force. All these proven technologies have helped peace operations save lives and thus need detailed study to gain lessons. Some novel but untested technologies are also introduced, including laser signaling and digital simulation.
APA, Harvard, Vancouver, ISO, and other styles
33

SKVORTSOV, KONSTANTIN V. "Possibilities of digital night vision devices during an operational-search action «observation» in the penal system institutions of the Russian Federation." Vedomosti (Knowledge) of the Penal System 231, no. 8 (2021): 28–35. http://dx.doi.org/10.51522/2307-0382-2021-231-8-28-35.

Full text
Abstract:
The article presents the results of an experimental study of the possibilities of using digital night vision binoculars with a Bushnell video recorder, centrally supplied as part of Berkut special set for search, with the necessary technical support for an operational-search activity «observation» in conditions of insufficient illumination and complete darkness. In the course of the research, visual photographic images of objects of observation at a distance of 20–40 meters from the observer were obtained under various lighting scenes, including complete darkness, a dim point light source, and a bright backlight source of scattered light. As a result of the work carried out, the principles and modes of operation of the presented model of a night-vision device are described. Recommendations are formulated for its use in the implemen tation of photographic and video recording in the course of the operational-search action «observation » in conditions of insufficient illumination. The proposed solutions will allow operatives of the penal system of the Russian Federation to increase their efficiency and achieve additional positive results in the use of modern digital technical means of operational surveillance in their official activities. Key words: night-vision device, observation conditions, object of observation, operationalsearch action, operational officer.
APA, Harvard, Vancouver, ISO, and other styles
34

Rogalski, A., and K. Chrzanowski. "Infrared Devices And Techniques (Revision)." Metrology and Measurement Systems 21, no. 4 (December 1, 2014): 565–618. http://dx.doi.org/10.2478/mms-2014-0057.

Full text
Abstract:
Abstract The main objective of this paper is to produce an applications-oriented review covering infrared techniques and devices. At the beginning infrared systems fundamentals are presented with emphasis on thermal emission, scene radiation and contrast, cooling techniques, and optics. Special attention is focused on night vision and thermal imaging concepts. Next section concentrates shortly on selected infrared systems and is arranged in order to increase complexity; from image intensifier systems, thermal imaging systems, to space-based systems. In this section are also described active and passive smart weapon seekers. Finally, other important infrared techniques and devices are shortly described, among them being: non-contact thermometers, radiometers, LIDAR, and infrared gas sensors.
APA, Harvard, Vancouver, ISO, and other styles
35

Teo, Grace, Eric Sikorski, Jacquelyn Schreck, and Gregory Goodwin. "Like day and night: Comparing squad level communications and shooting performance under differing battle drill conditions." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 66, no. 1 (September 2022): 611–15. http://dx.doi.org/10.1177/1071181322661069.

Full text
Abstract:
An indicator of squad lethality is the ability to execute battle drills proficiently in a range of real-world situations and environments. While it is a common understanding that military night operations are vastly different from day operations, there is limited research comparing how squad communications and shooting performance differ from day to night in the field. Communication and shooting data were collected from 18 squads that executed a battle drill in the day, and again at night. In the night drills, there were illumination aids of muzzle flashes, chemlights, and Soldier worn night vision devices. The present field study focused on the support-by-fire team, whose central role was to generate suppressive fire which requires substantial teamwork. Findings revealed day-night differences in Soldier communications, firing activity, and the roles of various weapons in generating suppressive fire. Implications for day and night training are also discussed.
APA, Harvard, Vancouver, ISO, and other styles
36

Kuzmich, O., V. Kuznetsov, and M. Andrushko. "ANALYSIS OF APPLICATION OF CONTEMPORARY NIGHT VISION GOGGLES ON THE BASIS OF ELECTRONIC-OPTICAL CONVERTER BY THE HELICOPTER CREWS. PROSPECTIVE HELICOPTER OPTOELECTRONIC SYSTEMS OF AERIAL RECONNAISSANCE/SURVEILLANCE." Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки, no. 5 (December 22, 2020): 50–55. http://dx.doi.org/10.37701/dndivsovt.5.2020.06.

Full text
Abstract:
The paper studies the matters of using of night vision goggles by the helicopter crews of the State Aviation of Ukraine. The analysis of the perspective systems that can replace night vision goggles based on electronic-optical converter and provide round-the-clock and all-weather flights, landing of the helicopter on unprepared and unlit areas in poor visibility was treated. Currently, the practice of using combat and transport helicopters involves their wider use in the night-time conditions (air warfare, delivery of goods, search-and-rescue operations). Due to low light levels, until recently, most night-time target acquisition tasks have been related with the necessities of providing the artificial target illumination, but in certain instances such illumination deteriorates visibility through an lighttight, phosphorescent atmospheric shells or it just can‟t be carried out. The need for a large number of channels included in the optoelectronic system, caused by the variety of tasks that are solved by it, as well as the imperfection of each individual channel. This forces them to be combined to improve the efficiency of the optoelectronic systems themselves, so that the disadvantages of one channel are offset by the advantages of another. In fact, it is only possible way to ensure the fulfilment of combat task by combining channels operating in different spectral bands in one scheme and by combining detection devices. It can be stated that, despite the undisputed advantages of optoelectronic systems as compared to night-vision goggles, in case of the selecting for installing on a helicopter of optoelectronic systems, it should take into account the much higher cost of optoelectronic systems compared with night-vision goggles. Therefore, the rationale for installing optoelectronic systems must be determined based on the scope of the executing tasks, which are to be conducted by a specific helicopter.
APA, Harvard, Vancouver, ISO, and other styles
37

Borissova, Daniela, and Ivan Mustakerov. "A generalized optimization method for night vision devices design considering stochastic external surveillance conditions." Applied Mathematical Modelling 33, no. 11 (November 2009): 4078–85. http://dx.doi.org/10.1016/j.apm.2009.02.003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Allison, Robert S., Todd Macuda, and Sion Jennings. "Detection and Discrimination of Motion-Defined Form: Implications for the Use of Night Vision Devices." IEEE Transactions on Human-Machine Systems 43, no. 6 (November 2013): 558–69. http://dx.doi.org/10.1109/thms.2013.2284911.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Moroney, William F. "Low-Technology Demonstrations of the Role of Peripheral Vision in Human Factors and Ergonomics." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 46, no. 8 (September 2002): 793–97. http://dx.doi.org/10.1177/154193120204600807.

Full text
Abstract:
This paper provides two demonstrations that highlight the importance of peripheral vision issues in system design. The first demonstration concerns the ability of the visual system to detect motion, while the second addresses the impact of reduction of visual field on the perception of optical flow data. Educators can use these demonstrations as the basis for discussions about the design implications for warning displays, attention gathering devices, optical flow, off-axis accidents, aging, attention, and night vision goggles. These demonstrations can be used at both the undergraduate and graduate levels. Relevant research findings are also discussed, and references for further exploration of the topics are provided.
APA, Harvard, Vancouver, ISO, and other styles
40

Ramanujam, E., and S. Padmavathi. "Real time fall detection using infrared cameras and reflective tapes under day/night luminance." Journal of Ambient Intelligence and Smart Environments 13, no. 4 (July 21, 2021): 285–300. http://dx.doi.org/10.3233/ais-210605.

Full text
Abstract:
Falls are the leading cause of injuries and death in elderly individuals who live alone at home. The core service of assistive living technology is to monitor elders’ activities through wearable devices, ambient sensors, and vision systems. Vision systems are among the best solutions, as their implementation and maintenance costs are the lowest. However, current vision systems are limited in their ability to handle cluttered environments, occlusion, illumination changes throughout the day, and monitoring without illumination. To overcome these issues, this paper proposes a 24/7 monitoring system for elders that uses retroreflective tape fabricated as part of conventional clothing, monitored through low-cost infrared (IR) cameras fixed in the living environment. IR camera records video even when there are changes in illumination or zero luminance. For classification among clutter and occlusion, the tape is considered as a blob instead of a human silhouette; the orientation angle, fitted through ellipse modeling, of the blob in each frame allows classification that detects falls without pretrained data. System performance was tested using subjects in various age groups and “fall” or “non-fall” were detected with 99.01% accuracy.
APA, Harvard, Vancouver, ISO, and other styles
41

Zebehazy, Kim T., George J. Zimmerman, Alex R. Bowers, Gang Luo, and Eli Peli. "Establishing Mobility Measures to Assess the Effectiveness of Night Vision Devices: Results of a Pilot Study." Journal of Visual Impairment & Blindness 99, no. 10 (October 2005): 663–70. http://dx.doi.org/10.1177/0145482x0509901010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Cao, Rui, Sidi Fan, Peng Yin, Chunyang Ma, Yonghong Zeng, Huide Wang, Karim Khan, et al. "Mid-Infrared Optoelectronic Devices Based on Two-Dimensional Materials beyond Graphene: Status and Trends." Nanomaterials 12, no. 13 (July 1, 2022): 2260. http://dx.doi.org/10.3390/nano12132260.

Full text
Abstract:
Since atomically thin two-dimensional (2D) graphene was successfully synthesized in 2004, it has garnered considerable interest due to its advanced properties. However, the weak optical absorption and zero bandgap strictly limit its further development in optoelectronic applications. In this regard, other 2D materials, including black phosphorus (BP), transition metal dichalcogenides (TMDCs), 2D Te nanoflakes, and so forth, possess advantage properties, such as tunable bandgap, high carrier mobility, ultra-broadband optical absorption, and response, enable 2D materials to hold great potential for next-generation optoelectronic devices, in particular, mid-infrared (MIR) band, which has attracted much attention due to its intensive applications, such as target acquisition, remote sensing, optical communication, and night vision. Motivated by this, this article will focus on the recent progress of semiconducting 2D materials in MIR optoelectronic devices that present a suitable category of 2D materials for light emission devices, modulators, and photodetectors in the MIR band. The challenges encountered and prospects are summarized at the end. We believe that milestone investigations of 2D materials beyond graphene-based MIR optoelectronic devices will emerge soon, and their positive contribution to the nano device commercialization is highly expected.
APA, Harvard, Vancouver, ISO, and other styles
43

Crudden, Adele, Anne C. Steverson, and Jennifer L. Cmar. "Drivers with Low Vision: Characteristics and Transportation Issues." Journal of Visual Impairment & Blindness 112, no. 2 (March 2018): 131–42. http://dx.doi.org/10.1177/0145482x1811200202.

Full text
Abstract:
Introduction This study provides descriptive information about drivers with low vision and transportation issues, including their own self-imposed driving restrictions. Methods An electronic survey administered online in late 2013 to early 2014 obtained data from 592 adults with visual impairments. Of those, 17 had a valid driver's license. These 17 provided information about their employment, activity limitations, public transportation use, services received, and transportation self-efficacy. Results Approximately half of the low vision drivers were employed. Most had not received vocational rehabilitation or orientation and mobility (O&M) services. Most drivers limited their night driving and over 70% noted that transportation problems limited their participation in entertainment or leisure activities. Most drivers had access to public transportation, but did not frequently use it. Drivers were generally confident in their ability to perform transportation- related tasks, although overall, drivers using bioptic devices tended to be more confident. Drivers who did not use bioptic devices were least confident in arranging a fair price for daily transportation to work with a driver. Discussion Drivers with low vision who limit their activities and employment due to transportation issues may not be receiving the vocational rehabilitation or O&M services that could help them compensate for these limitations. Further research examining the behaviors and service needs of low vision drivers is indicated, particularly for younger drivers. Study limitations include the small sample size, non-probability sampling method, and electronic data collection. Implications for practitioners Low vision drivers may benefit from evaluation by O&M specialists and vocational rehabilitation providers to determine if additional services are needed. Persons with low vision should be informed about evaluation for bioptic devices, and vocational rehabilitation providers should network with bioptic providers and other professionals to obtain referrals of persons with low vision who are not yet vocational rehabilitation recipients.
APA, Harvard, Vancouver, ISO, and other styles
44

Vollmerhausen, Richard H. "Small Obstacle Avoidance Sensor." Scientific World Journal 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/604538.

Full text
Abstract:
This paper describes a laser ranging sensor that is suitable for applications like small unmanned aerial vehicles. The hardware consists of a diode emitter array and line-scan charge coupled devices. A structured-light technique measures ranges up to 30 meters for 64 field angles in a 90 degree field of view. Operation is eye safe, and the laser wavelength is not visible to night vision goggles. This paper describes a specific sensor design in order to illustrate performance for a given package size.
APA, Harvard, Vancouver, ISO, and other styles
45

Sharma, Awanish Kumar, Manoj Dhiman, Ram Kumar, and Sulaxna Sharma (Dr.). "Formation of Potassium Nanostructures on Reconstructed High Index Si (5512)2x1 Surface for Night Vision Devices (NVD)." IOSR Journal of Applied Physics 6, no. 3 (2014): 01–08. http://dx.doi.org/10.9790/4861-06320108.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Oleĭnik, S. V., and T. N. Khatsevich. "Investigation of two-lens achromat objectives as the basic elements of fast objectives of night-vision devices." Journal of Optical Technology 76, no. 1 (January 1, 2009): 53. http://dx.doi.org/10.1364/jot.76.000053.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Gusarova, N. I., N. F. Koshchavtsev, and S. V. Popov. "Advantages of solid-state photodetectors for a spectral interval of 1.4–1.7 μm in night-vision devices." Journal of Communications Technology and Electronics 61, no. 10 (October 2016): 1211–14. http://dx.doi.org/10.1134/s1064226916100144.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Chen, Jian, Jiuxu Wang, Xin Li, Jin Chen, Feilong Yu, Jiale He, Jian Wang, et al. "Recent Progress in Improving the Performance of Infrared Photodetectors via Optical Field Manipulations." Sensors 22, no. 2 (January 16, 2022): 677. http://dx.doi.org/10.3390/s22020677.

Full text
Abstract:
Benefiting from the inherent capacity for detecting longer wavelengths inaccessible to human eyes, infrared photodetectors have found numerous applications in both military and daily life, such as individual combat weapons, automatic driving sensors and night-vision devices. However, the imperfect material growth and incomplete device manufacturing impose an inevitable restriction on the further improvement of infrared photodetectors. The advent of artificial microstructures, especially metasurfaces, featuring with strong light field enhancement and multifunctional properties in manipulating the light–matter interactions on subwavelength scale, have promised great potential in overcoming the bottlenecks faced by conventional infrared detectors. Additionally, metasurfaces exhibit versatile and flexible integration with existing detection semiconductors. In this paper, we start with a review of conventionally bulky and recently emerging two-dimensional material-based infrared photodetectors, i.e., InGaAs, HgCdTe, graphene, transition metal dichalcogenides and black phosphorus devices. As to the challenges the detectors are facing, we further discuss the recent progress on the metasurfaces integrated on the photodetectors and demonstrate their role in improving device performance. All information provided in this paper aims to open a new way to boost high-performance infrared photodetectors.
APA, Harvard, Vancouver, ISO, and other styles
49

Yin, Mei, Xudong Wang, Tianliang Zhou, and Rong-Jun Xie. "Mg4Nb2O9:Cr3+: broadband near-infrared luminescence." Journal of Physics: Conference Series 2639, no. 1 (November 1, 2023): 012048. http://dx.doi.org/10.1088/1742-6596/2639/1/012048.

Full text
Abstract:
Abstract The exploration of broadband Near infrared (NIR) phosphors is one of the research priorities to enable the advancement of NIR devices. In this work, Mg4Nb2O9:Cr3+ phosphors were prepared by high-temperature solid-state reaction method. Mg4Nb2O9:Cr3+ can emit ultra-broadband NIR centred at 880 nm with an extremely full width at half maximum (FWHM) of near 200 nm, and NIR phosphor-converted LED (pc-LED) has been fabricated by combining a 450 nm blue LED with MNO:0.5%Cr to demonstrate its application prospect in night vision.
APA, Harvard, Vancouver, ISO, and other styles
50

Li, Wenyi, Hui Li, Karim Khan, Xiaosong Liu, Hui Wang, Yanping Lin, Lishang Zhang, et al. "Infrared Light Emission Devices Based on Two-Dimensional Materials." Nanomaterials 12, no. 17 (August 30, 2022): 2996. http://dx.doi.org/10.3390/nano12172996.

Full text
Abstract:
Two-dimensional (2D) materials have garnered considerable attention due to their advantageous properties, including tunable bandgap, prominent carrier mobility, tunable response and absorption spectral band, and so forth. The above-mentioned properties ensure that 2D materials hold great promise for various high-performance infrared (IR) applications, such as night vision, remote sensing, surveillance, target acquisition, optical communication, etc. Thus, it is of great significance to acquire better insight into IR applications based on 2D materials. In this review, we summarize the recent progress of 2D materials in IR light emission device applications. First, we introduce the background and motivation of the review, then the 2D materials suitable for IR light emission are presented, followed by a comprehensive review of 2D-material-based spontaneous emission and laser applications. Finally, further development directions and challenges are summarized. We believe that milestone investigations of 2D-material-based IR light emission applications will emerge soon, which are beneficial for 2D-material-based nano-device commercialization.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography