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Artykuły w czasopismach na temat „REFLECTANCE MATCHING”

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Data publikacji: 11 września 2023

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1

Adachi, Yusuke, Ryota Kikuchi, Kenta Obata, and Hiroki Yoshioka. "Relative Azimuthal-Angle Matching (RAM): A Screening Method for GEO-LEO Reflectance Comparison in Middle Latitude Forests." Remote Sensing 11, no. 9 (2019): 1095. http://dx.doi.org/10.3390/rs11091095.

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This study introduced a data screening method for comparing the reflectances in middle latitude forest regions collected by a Geostationary Earth Observing (GEO) satellite and a Low Earth Orbit (LEO) satellite. This method attempts to reduce the differences between the relative azimuth angles of the GEO and LEO observations. The method, called relative azimuthal-angle matching (RAM), takes advantage of the high temporal resolution of the GEO satellites, which enables collection of a wide range of relative azimuth angles within a day. The performance of the RAM method was evaluated using data i

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Hamilton, Paul, Brian Sullivan, and Diann Gaalema. "Short-term changes in dorsal reflectance for background matching in Ornate Tree Lizards (Urosaurus ornatus)." Amphibia-Reptilia 29, no. 4 (2008): 473–77. http://dx.doi.org/10.1163/156853808786230488.

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AbstractSome lizards are thought to exhibit short-term changes in color to match their background, but this ability has not been verified empirically. We tested the hypothesis that lizards will change dorsal reflectance over a series of days to match their backgrounds. We housed male and female Ornate Tree Lizards (Urosaurus ornatus) for five days in aquaria painted to match environmental extremes in substrate reflectance. Standardized photographs were taken each day yielding dorsal percent reflectance values. After the first day, reflectance of lizards changed significantly to more closely ma

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3

Romney, A. K., and T. Indow. "Estimating physical reflectance spectra from human color-matching experiments." Proceedings of the National Academy of Sciences 99, no. 22 (2002): 14607–10. http://dx.doi.org/10.1073/pnas.222558899.

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Lundgaard, Stefan, Soon Hock Ng, Yoshiaki Nishijima, Michael Mazilu, and Saulius Juodkazis. "Black Metals: Optical Absorbers." Micromachines 11, no. 3 (2020): 256. http://dx.doi.org/10.3390/mi11030256.

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We demonstrate a concept and fabrication of lithography-free layered metal-SiO2 thin-film structures which have reduced reflectivity (black appearance), to as low as 0.9%, with 4.9% broadband reflectance (8.9% for soda lime) in the 500–1400 nm range. The multi-layered (four layers) thin-film metamaterial is designed so that optical impedance matching produces minimal reflectance and transmittance within the visible and infra-red (IR) spectral region for a range of incident angles. The structure has enhanced absorbance and is easily tuned for reduced minimal transmission and reflection. This ap

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5

Mishra, V. D., J. K. Sharma, and R. Khanna. "Review of topographic analysis methods for the western Himalaya using AWiFS and MODIS satellite imagery." Annals of Glaciology 51, no. 54 (2010): 153–60. http://dx.doi.org/10.3189/172756410791386526.

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AbstractThe topographic effects of differential terrain illumination in optical satellite imagery of rugged mountainous regions have serious consequences for qualitative and quantitative analysis for various snow applications. Therefore, effective removal or minimization of topographic effects is necessary in satellite image data of mountainous regions. Different methods for topographic corrections, including C-correction, Minnaert corrections (including slope) and slope-matching method, are analysed in the context of snow reflectance. Combination of dark-object subtraction models DOS1 and DOS

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6

Churmakov, D. Y., I. V. Meglinski, and D. A. Greenhalgh. "Influence of refractive index matching on the photon diffuse reflectance." Physics in Medicine and Biology 47, no. 23 (2002): 4271–85. http://dx.doi.org/10.1088/0031-9155/47/23/312.

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7

Li, Shande, Xiaoxun Wu, Jinxiu Duan, et al. "A Composite Matching Layer with Anti-Reflection Characteristics for Broadband Acoustic Scattering Reduction." Shock and Vibration 2021 (December 15, 2021): 1–10. http://dx.doi.org/10.1155/2021/1480264.

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A composite matching layer composed of periodically arranged scatters with anti-reflection (AR) characteristics is proposed for broadband scattering reduction. The anti-reflection structure is composed of periodically arranged metal foam scatters, and it is the first attempt to be applied in the field of suppressing acoustic reflection. A complete theoretical model is developed to reveal the mechanism of scattering reduction and acoustic absorption based on effective medium theory and the transfer matrix method. The correctness and effectiveness of the theoretical model are verified by the fin

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8

LEE, MAL-REY, and TAE-EUN KIM. "ESTIMATION OF HYBRID REFLECTANCE PROPERTIES AND SHAPE RECONSTRUCTION USING THE LMS METHOD." International Journal on Artificial Intelligence Tools 08, no. 01 (1999): 1–17. http://dx.doi.org/10.1142/s0218213099000026.

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This paper presents a new method to estimate reflectance properties of non–Lambertian surface by the least-mean-square (LMS) algorithm. In this paper, hybrid reflectance of an object is represented by the Torrance–Sparrow model. We determine reflectance parameters which minimize the sum squared difference of the intensity distribution between the image of a sample sphere and the calculated image. The estimated reflectance parameters provide the range data with intensity distributions. Therefore, we generate three reference images of a range sphere, which has the same diameter as that of the sa

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9

LEE, MAL-REY. "3D SHAPE RECONSTRUCTION OF HYBRID REFLECTANCE USING THE LMS ALGORITHM." International Journal of Pattern Recognition and Artificial Intelligence 15, no. 04 (2001): 723–34. http://dx.doi.org/10.1142/s0218001401001040.

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In this paper, we present a new approach for determining the reflectance properties of surface and recovering 3D shapes from intensity images. We determine reflectance parameters which minimize the sum squared difference of the intensity distribution between the image of a sample sphere and the calculated image. The estimated reflectance parameters provide the range data with intensity distributions. Therefore, we generate three reference images of a range sphere, which has the same diameter as that of the sample, from the same viewpoint but with different light directions. Direct matching of

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10

Luo, Lin, Hui-Liang Shen, Si-Jie Shao, and John Xin. "Empirical model for matching spectrophotometric reflectance of yarn windings and multispectral imaging reflectance of single strands of yarns." Journal of the Optical Society of America A 32, no. 8 (2015): 1459. http://dx.doi.org/10.1364/josaa.32.001459.

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11

Charrois, Luc, Emmanuel Cosme, Marie Dumont, et al. "On the assimilation of optical reflectances and snow depth observations into a detailed snowpack model." Cryosphere 10, no. 3 (2016): 1021–38. http://dx.doi.org/10.5194/tc-10-1021-2016.

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Abstract. This paper examines the ability of optical reflectance data assimilation to improve snow depth and snow water equivalent simulations from a chain of models with the SAFRAN meteorological model driving the detailed multilayer snowpack model Crocus now including a two-stream radiative transfer model for snow, TARTES. The direct use of reflectance data, allowed by TARTES, instead of higher level snow products, mitigates uncertainties due to commonly used retrieval algorithms.Data assimilation is performed with an ensemble-based method, the Sequential Importance Resampling Particle filte

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12

Swatland, H. J. "Optical properties of turkey pectoralis muscle affecting detection of connective tissue fluorescence." Canadian Journal of Animal Science 81, no. 1 (2001): 25–31. http://dx.doi.org/10.4141/a00-053.

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A dual-channel probe was used to detect fluorescence (excitation 365 nm, emission 400 to 550 nm) and reflectance (550 nm) in turkey pectoralis muscles (n= 157). All fluorescence peaks had matching reflectance peaks, but not vice versa. Thus, some reflectance peaks originated from non-fluorescent structures in the muscle. Electrical impedance was used to assess fluid distribution. Electrical capacitance was correlated (P< 0.01) with areas under probe signals (r= 0.19 for both fluorescence and reflectance). In a subset of samples (n= 45), the reflectance of initially polarized light was used

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13

Chen, Fei, Di Wu, Rafiqul Islam, et al. "Evaluation of Color and Spectral Behavior of a Novel Flowable Resin Composite after Water Aging: An In Vitro Study." Materials 15, no. 12 (2022): 4102. http://dx.doi.org/10.3390/ma15124102.

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Background: This study aimed to evaluate the color matching, light transmittance, and reflectance characteristics of the novel flowable resin composite OCF-001 (OCF). Methods: Fifty-four resin composite molds were made with simulated class I cavities of A2, A3, and A4 shades by filling the rubber mold interspace with Estelite Sigma Quick (ESQ), Gracefil Putty (GP) and Filtek Supremme Ultra (FSU). After applying the adhesive, three different flowable resin composites (n = 6), OCF, Gracefil LoFlo (GLF), and Supreme Ultra Flowable (SUF), were used to fill the cavities. A colorimeter was used to m

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14

Cho, Youngsoo, and Guneik Jang. "Pattern Visibility Enhancement by the Hybrimer Index-Matching Inter Layer in Oxide/Metal/Oxide-Structured Transparent Conductive Electrode on Flexible Polyethylene Terephthalate Substrates." Journal of Nanoscience and Nanotechnology 21, no. 3 (2021): 1932–36. http://dx.doi.org/10.1166/jnn.2021.18918.

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For this study, we fabricated transparent Mn-doped tin oxide (MTO)/Ag/MTO films with refractive index-matching layer on a polyethylene terephthalate (PET) substrate. The hybrimer indexmatching layer containing TIP (Titanium isopropoxide) in hydroxy terminated PDMS (PDMS-OH) matrix was placed between the MTO/Ag/MTO multilayer and PET substrate. MTO and Ag were deposited by using RF/DC magnetron sputtering at room temperature, whereas a hybrimer mixture was spin-coated on the PET substrate after adjusting the molar ratios between the TIP and PDMS-OH. Pattern visibility was examined by comparing

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15

Köprü, Ramazan, Sedat Kilinç, Çağatay Aydin, Doğu Çağdaş Atilla, Cahit Karakuş, and Binboğa Siddik Yarman. "Ultra wideband matching network design for a V-shaped square planar monopole antenna." International Journal of Microwave and Wireless Technologies 6, no. 6 (2014): 555–64. http://dx.doi.org/10.1017/s1759078714001081.

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In this paper, design, manufacture, and measurement of a wideband matching network for a broadband V-shaped square planar monopole antenna (V-SPMA) is presented. Matching network design is unavoidable in most cases even vital to facilitate a maximally flat power transfer gain for an antenna. In the work, a bandpass matching network (BPMN) design is done for a particular square monopole antenna with V-shaped coupling element that has essentially bandwidth increasing effect. Designed BPMN and the antenna forms a VSPMA–BPMN matched antenna structure. “real frequency technique” is employed in the

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16

Gao, Bo-Cai, and Rong-Rong Li. "Improving Water Leaving Reflectance Retrievals from ABI and AHI Data Acquired Over Case 2 Waters from Present Geostationary Weather Satellite Platforms." Remote Sensing 12, no. 19 (2020): 3257. http://dx.doi.org/10.3390/rs12193257.

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The current generation of geostationary weather satellite instruments, such as the Advanced Baseline Imagers (ABIs) on board the US NOAA GOES 16 and 17 satellites and the Advanced Himawari Imagers (AHIs) on board the Japanese Himawari-8/9 satellites, have six channels located in the visible to shortwave IR (SWIR) spectral range. These instruments can acquire images over both land and water surfaces at spatial resolutions between 0.5 and 2 km and with a repeating cycle between 5 and 30 min depending on the mode of operation. The imaging data from these instruments have clearly demonstrated the

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17

Fukue, Kiyonari, and Haruhisa Shimoda. "GLOBAL LAND COVER CLASSIFICATION USING MODIS SURFACE REFLECTANCE PROSUCTS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (June 21, 2016): 219–22. http://dx.doi.org/10.5194/isprs-archives-xli-b7-219-2016.

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The objective of this study is to develop high accuracy land cover classification algorithm for Global scale by using multi-temporal MODIS land reflectance products. In this study, time-domain co-occurrence matrix was introduced as a classification feature which provides time-series signature of land covers. Further, the non-parametric minimum distance classifier was introduced for timedomain co-occurrence matrix, which performs multi-dimensional pattern matching for time-domain co-occurrence matrices of a classification target pixel and each classification classes. The global land cover class

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Fukue, Kiyonari, and Haruhisa Shimoda. "GLOBAL LAND COVER CLASSIFICATION USING MODIS SURFACE REFLECTANCE PROSUCTS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (June 21, 2016): 219–22. http://dx.doi.org/10.5194/isprsarchives-xli-b7-219-2016.

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The objective of this study is to develop high accuracy land cover classification algorithm for Global scale by using multi-temporal MODIS land reflectance products. In this study, time-domain co-occurrence matrix was introduced as a classification feature which provides time-series signature of land covers. Further, the non-parametric minimum distance classifier was introduced for timedomain co-occurrence matrix, which performs multi-dimensional pattern matching for time-domain co-occurrence matrices of a classification target pixel and each classification classes. The global land cover class

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19

Bernard, E., C. Moulin, D. Ramon, D. Jolivet, J. Riedi та J. M. Nicolas. "Validation of an AOT product over land at the 0.6 μm channel of the SEVIRI sensor onboard MSG". Atmospheric Measurement Techniques Discussions 4, № 3 (2011): 3147–98. http://dx.doi.org/10.5194/amtd-4-3147-2011.

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Abstract. The Spinning Enhanced Visible and InfraRed Imager (SEVIRI) aboard Meteosat Second Generation (MSG) launched in 2003 by EUMETSAT is dedicated to the Nowcasting applications and Numerical Weather Prediction and to provide information for climate monitoring and research. We use the data in visible and near infrared channels to derive the Aerosol Optical Thickness (AOT) over land. The algorithm is based on the assumption that the Top Of the Atmosphere (TOA) reflectance increases with the aerosol load. This is a reasonable assumption except in case of absorbing aerosols above bright surfa

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20

Liu, Zhao Yan, Ling Ling Ma, Ling Li Tang, and Yong Gang Qian. "LAI Retrieval Based on PROSPECT-SAILH Model from Multi-Angular Data of WiDAS Imaging System." Advanced Materials Research 518-523 (May 2012): 5697–703. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.5697.

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The aim of this study is to assess the capability of estimating Leaf Area Index (LAI) from high spatial resolution multi-angular Vis-NIR remote sensing data of WiDAS (Wide-Angle Infrared Dual-mode Line/Area Array Scanner) imaging system by inverting the coupled radiative transfer models PROSPECT-SAILH. Based on simulations from SAILH canopy reflectance model and PROSPECT leaf optical properties model, a Look-up Table (LUT) which describes the relationship between multi-angular canopy reflectance and LAI has been produced. Then the LAI can be retrieved from LUT by directly matching canopy refle

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21

Wu, Shiyong, Ruofei Zhong, Qingyang Li, Ke Qiao, and Qing Zhu. "An Interband Registration Method for Hyperspectral Images Based on Adaptive Iterative Clustering." Remote Sensing 13, no. 8 (2021): 1491. http://dx.doi.org/10.3390/rs13081491.

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In the context of the problem of image blur and nonlinear reflectance difference between bands in the registration of hyperspectral images, the conventional method has a large registration error and is even unable to complete the registration. This paper proposes a robust and efficient registration algorithm based on iterative clustering for interband registration of hyperspectral images. The algorithm starts by extracting feature points using the scale-invariant feature transform (SIFT) to achieve initial putative matching. Subsequently, feature matching is performed using four-dimensional de

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Tang, Tianyu, Yanlin Tang, and Xiaonan Wei. "Analysis on Spectral Matching of Biochemical Component for Rice." Journal of Physics: Conference Series 2112, no. 1 (2021): 012028. http://dx.doi.org/10.1088/1742-6596/2112/1/012028.

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Abstract The protein, starch and amylose are three important indexes to characterize rice quality. The starch, crude protein and amylose of rice were extracted by experiments. The hyperspectral reflectance of starch, crude protein and amylose, their mixed samples and rice samples were determined by a ASD FieldSpec Pro FR™ The spectral characteristics of starch, crude protein, amylose and their correlation with component content were analyzed by using spectral matching technique and multivariate statistical method. The results showed that the spectra of three biochemical components were signifi

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Cherry, Michael I., and T. D. Bennett. "Egg colour matching in an African cuckoo, as revealed by ultraviolet-visible reflectance spectrophotometry." Proceedings of the Royal Society of London. Series B: Biological Sciences 268, no. 1467 (2001): 565–71. http://dx.doi.org/10.1098/rspb.2000.1414.

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Leihong, Zhang, Liang Dong, Zhang Dawei, Gao Xiumin, and Ma Xiuhua. "Study of Spectral Reflectance Reconstruction Based on an Algorithm for Improved Orthogonal Matching Pursuit." Journal of the Optical Society of Korea 20, no. 4 (2016): 515–23. http://dx.doi.org/10.3807/josk.2016.20.4.515.

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Tan, Jing, Robert Frouin, Didier Ramon, and François Steinmetz. "On the Adequacy of Representing Water Reflectance by Semi-Analytical Models in Ocean Color Remote Sensing." Remote Sensing 11, no. 23 (2019): 2820. http://dx.doi.org/10.3390/rs11232820.

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Deterministic or statistical inversion schemes to retrieve ocean color from space often use a simplified water reflectance model that may introduce unrealistic constraints on the solution, a disadvantage compared with standard, two-step algorithms that make minimal assumptions about the water signal. In view of this, the semi-analytical models of Morel and Maritorena (2001), MM01, and Park and Ruddick (2005), PR05, used in the spectral matching POLYMER algorithm (Steinmetz et al., 2011), are examined in terms of their ability to restitute properly, i.e., with sufficient accuracy, water reflect

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Giguère, Louis A., and Robert L. Dunbrack. "Thin Layer Interference may Reduce the Visibility of Transparent Phantom Midge Larvae (Chaoborus trivittatus) to Predators." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 5 (1990): 1043–46. http://dx.doi.org/10.1139/f90-119.

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The body wall of transparent aquatic animals is constructed of materials which have a higher refractive index than water. Because of this, light will reflect from their surface, making their body contours visible to predators. Electron micrographs of cuticle from the transparent pelagic stage of the phantom midge Chaoborus trivittatus reveal thin layers less than a wavelength of light thick which could alter the spectral composition of this surface reflection by acting as an interference filter. This hypothesis is supported by measurements of the reflectance of the body surface of C. trivittat

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Ran, Jianguo, Heng Liu, and Jiqing Luo. "The color matching design based on polynomial regression." Textile Research Journal 92, no. 7-8 (2021): 1235–45. http://dx.doi.org/10.1177/00405175211054222.

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Camouflage spots are mostly color patches of different colors. Compared with the traditional empirical color matching method, computer color matching can quickly and effectively calculate the proportion of red, yellow, and blue primary colors. In general, camouflage computer color matching in the practical application of the initial formula is not accurate and multiple color modification still cannot match. First, we measured the chroma coordinates of 98 standard swatches made of red, green, and blue coatings in different proportions by the OHSP-660 spectral reflectance tester. Then, we adopte

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Sengar, V. K., A. S. Venkatesh, P. K. Champaty Ray, S. L. Chattoraj, and R. U. Sharma. "MINERALOGICAL MAPPING IN THE PART OF A GOLD PROSPECT USING EO-1 HYPERION DATA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 (October 14, 2016): 991–93. http://dx.doi.org/10.5194/isprs-archives-xli-b7-991-2016.

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The satellite data obtained from various airborne as well as space-borne Hyperspectral sensors, often termed as imaging spectrometers, have great potential to map the mineral abundant regions. Narrow contiguous bands with high spectral resolution of imaging spectrometers provide continuous reflectance spectra for different Earth surface materials. Detailed analysis of resultant reflectance spectra, derived through processing of hyperspectral data, helps in identification of minerals on the basis of their reflectance characteristics. EO-1 Hyperion sensor contains 196 unique channels out of 242

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Bernard, E., C. Moulin, D. Ramon, D. Jolivet, J. Riedi та J. M. Nicolas. "Description and validation of an AOT product over land at the 0.6 μm channel of the SEVIRI sensor onboard MSG". Atmospheric Measurement Techniques 4, № 11 (2011): 2543–65. http://dx.doi.org/10.5194/amt-4-2543-2011.

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Abstract. The Spinning Enhanced Visible and InfraRed Imager (SEVIRI) aboard Meteosat Second Generation (MSG) launched in 2003 by EUMETSAT is dedicated to the Nowcasting applications and Numerical Weather Prediction and to the provision of observations for climate monitoring and research. We use the data in visible and near infrared (NIR) channels to derive the aerosol optical thickness (AOT) over land. The algorithm is based on the assumption that the top of the atmosphere (TOA) reflectance increases with the aerosol load. This is a reasonable assumption except in case of absorbing aerosols ab

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Wei, Yuh Chang, Wen Min Chou, and Chih Lang Chen. "The Performance of Computerized Spectrum Color Matching Based on Kubelka-Munk Theory and its Color Rendering on Offset Ink Sets." Advanced Materials Research 174 (December 2010): 72–76. http://dx.doi.org/10.4028/www.scientific.net/amr.174.72.

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The purpose of the study intended to examine the performance of color rendering based on a computerized spectrum color matching (CSCM) method derived from the Kubelka-Munk theory. In the study, we prepared 2 offset ink sets to produce 30 standard color samples sets. The target color samples were measured by spectrophotometer to compare with the predicted values calculated by the CSCM model. The results showed that average measured color difference (∆E) via CIE L*a*b* and CIE DE2000 formulas between samples and CSCM predicted values averaged 5.89, 3.72 (∆Es), 6.94, 4.22(∆Epv), respectively. The

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Muñoz-Ramírez, Carlos P., Pierre-Paul Bitton, Stéphanie M. Doucet, and Lacey L. Knowles. "Mimics here and there, but not everywhere: Müllerian mimicry in Ceroglossus ground beetles?" Biology Letters 12, no. 9 (2016): 20160429. http://dx.doi.org/10.1098/rsbl.2016.0429.

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The ground beetle genus Ceroglossus contains co-distributed species that show pronounced intraspecific diversity in the form of geographical colour morphs. While colour morphs among different species appear to match in some geographical regions, in others, there is little apparent colour matching. Mimicry is a potential explanation for covariation in colour patterns, but it is not clear whether the degree of sympatric colour matching is higher than expected by chance given the obvious mismatches among morphs in some regions. Here, we used reflectance spectrometry to quantify elytral coloration

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Chen, Qiao, Li Jie Wang, and Stephen Westland. "A Novel Method for Representation of Spectral Images Based on Color Matching Functions." Advanced Materials Research 181-182 (January 2011): 410–15. http://dx.doi.org/10.4028/www.scientific.net/amr.181-182.410.

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Spectral images contain a large volume of data and the development of multispectral imaging systems places considerable demands on computer hardware and software compared with standard three-component or trichromatic image storage and processing. This study is concerned with lossy compression techniques for spectral images since many color images are intended for display for human perception and it is well established that images contain redundancies (in terms of their color, spatial and temporal properties) that can be removed without any loss in image quality. The lossy compression technique

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Ham, S. H., and B. J. Sohn. "Assessment of the calibration performance of satellite visible channels using cloud targets: application to Meteosat-8/9 and MTSAT-1R." Atmospheric Chemistry and Physics Discussions 10, no. 5 (2010): 12629–64. http://dx.doi.org/10.5194/acpd-10-12629-2010.

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Abstract. To examine the calibration performance of the Meteosat-8/9 Spinning Enhanced Visible Infra-Red Imager (SEVIRI) 0.640-μm and the Multi-functional Transport Satellite (MTSAT)-1R 0.724-μm channels, three calibration methods were employed. First, a ray-matching technique was used to compare Meteosat-8/9 and MTSAT-1R visible channel reflectances with the well-calibrated Moderate Resolution Imaging Spectroradiometer (MODIS) 0.646-μm channel reflectances. Spectral differences of the response function between the two channels of interest were taken into account for the comparison. Second, co

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SKILES, S. McKENZIE, THOMAS PAINTER, and GREGORY S. OKIN. "A method to retrieve the spectral complex refractive index and single scattering optical properties of dust deposited in mountain snow." Journal of Glaciology 63, no. 237 (2016): 133–47. http://dx.doi.org/10.1017/jog.2016.126.

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ABSTRACTDust deposition to snow can have regionally important climatic and hydrologic impacts resulting from direct reduction of surface albedo and indirectly from the initiation of snow albedo feedbacks. Modeling the radiative impacts of dust deposited in snow requires knowledge of the optical properties of both components. Here we present an inversion technique to retrieve the effective optical properties of dust deposited in mountain snow cover from measurements of hemispherical dust reflectance and particle size distributions using radiative transfer modeling. First, modeled reflectance is

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Plotnikov, Dmitry, Pavel Kolbudaev, Alexey Matveev, Andrey Proshin, and Ivan Polyanskiy. "Accuracy Assessment of Atmospheric Correction of KMSS-2 Meteor-M #2.2 Data over Northern Eurasia." Remote Sensing 15, no. 18 (2023): 4395. http://dx.doi.org/10.3390/rs15184395.

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Atmospheric correction of satellite remote sensing data is a prerequisite for a large variety of applications, including time series analysis and quantitative assessment of the Earth’s vegetation cover. It was earlier reported that an atmospherically corrected KMSS-M (Meteor-M #2) dataset was produced for Russia and neighboring countries. The methodology adopted for atmospheric correction was based on localized histogram matching of target KMSS-M and MODIS reference gap-free and date-matching imagery. In this paper, we further advanced the methodology and quantitatively assessed Level-2 surfac

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Parker, Andrew R., David R. Mckenzie, and Maryanne C. J. Large. "Multilayer reflectors in animals using green and gold beetles as contrasting examples." Journal of Experimental Biology 201, no. 9 (1998): 1307–13. http://dx.doi.org/10.1242/jeb.201.9.1307.

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The light reflectors in the beetles Calloodes grayanus and Anoplognathus parvulus are examined. Contrasting multilayer reflectors are revealed. Calloodes grayanus appears a weak green colour, matching its background leaves, while A. parvulus is strongly metallic-gold coloured. The former reflection is diffuse, as the result of a structure causing scattering that overlies the multilayer reflector, whereas the latter reflection is strongly directional. The green colour of C. grayanus is achieved by a multilayer reflector with a fixed spatial periodicity, here termed 'regular', which is far remov

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Tittl, Andreas, Moshe G. Harats, Ramon Walter, et al. "Quantitative Angle-Resolved Small-Spot Reflectance Measurements on Plasmonic Perfect Absorbers: Impedance Matching and Disorder Effects." ACS Nano 8, no. 10 (2014): 10885–92. http://dx.doi.org/10.1021/nn504708t.

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HARA, Yoshitaka, Hirohiko KAWATA, Akihisa OHYA, and Shin'ichi YUTA. "2P1-C29 Mobile Robot Localization by Scan Matching using Laser Reflectance Intensity of the SOKUIKI Sensor." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2006 (2006): _2P1—C29_1—_2P1—C29_4. http://dx.doi.org/10.1299/jsmermd.2006._2p1-c29_1.

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Osborne, B. G., Z. Kotwal, I. J. Wesley, L. Saunders, P. Dardenne, and J. S. Shenk. "Optical Matching of near Infrared Reflectance Monochromator Instruments for the Analysis of Ground and Whole Wheat." Journal of Near Infrared Spectroscopy 7, no. 3 (1999): 167–78. http://dx.doi.org/10.1255/jnirs.247.

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Polavarapu, Prasad L., and Zhengyu Deng. "Differential Polarized Reflectance Spectroscopy at Air/Water and Air/Metal Interfaces." Applied Spectroscopy 50, no. 1 (1996): 91–97. http://dx.doi.org/10.1366/0003702963906807.

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We report the direct measurement of differential polarized reflectance spectra for samples at air/water and air/metal interfaces. The central component for these measurements is a polarization-division interferometer (PDI). This interferometer uses an in-house-designed beamsplitter constructed in-house from a BaF2 polarizer and a matching substrate. In conjunction with a linear polarizer in front of the source and two rooftop mirrors, one in each arm of the interferometer, the PDI divides the input beam into two orthogonal linear polarization components, recombines them for interference at the

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Ding, Xia, Wei Peng, and Xiaoling Yi. "Evaluation of Physical Education Teaching Effect Based on Action Skill Recognition." Computational Intelligence and Neuroscience 2022 (May 31, 2022): 1–11. http://dx.doi.org/10.1155/2022/9489704.

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In order to improve the effect of physical education teaching in modern colleges and universities, this paper combines the movement skill recognition algorithm to construct a physical education effect evaluation system and studies the multispectral image reproduction system in practical application. Moreover, this paper gives a detailed description of more advanced functional modules in the system, such as spectral acquisition, spectral reflectance reconstruction, and spectral color correction. In addition, this paper focuses on the algorithm design of the color appearance matching module. By

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Boker, Steven M. "A Measurement of the Adaptation of Color Vision to the Spectral Environment." Psychological Science 8, no. 2 (1997): 130–34. http://dx.doi.org/10.1111/j.1467-9280.1997.tb00695.x.

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An exploratory factor analysis of the reflectance spectral distributions of a sample of natural and man-made objects yields a factor pattern remarkably similar to psychophysical color-matching curves. The goodness-of-fit indices from a maximum likelihood confirmatory factor model with fixed factor loadings specified by empirical trichromatic color-matching data indicate that the human visual system performs near to an optimum value for an ideal trichromatic system composed of three linear components. An unconstrained four-factor maximum likelihood model fits significantly better than a three-f

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Deneke, H. M., and R. Roebling. "Downscaling of METEOSAT SEVIRI 0.6 and 0.8 micron channel radiances utilizing the high-resolution visible channel." Atmospheric Chemistry and Physics Discussions 10, no. 4 (2010): 10707–40. http://dx.doi.org/10.5194/acpd-10-10707-2010.

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Abstract. An algorithm is introduced to downscale the 0.6 and 0.8 micron spectral channels of the METEOSTAT SEVIRI satellite imager from 3×3 km2 (LRES) to 1×1 km2 (HRES) resolution utilizing SEVIRI's high-resolution visible channel (HRVIS). Intermediate steps include the coregistration of low- and high-resolution images, lowpass filtering of the HRVIS channel with the spatial response function of the narrowband channels, and the estimation of a least-squares linear regression model for linking high-frequency variations in the HRVIS and narrowband images. The importance of accounting for the se

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Deneke, H. M., та R. A. Roebeling. "Downscaling of METEOSAT SEVIRI 0.6 and 0.8 μm channel radiances utilizing the high-resolution visible channel". Atmospheric Chemistry and Physics 10, № 20 (2010): 9761–72. http://dx.doi.org/10.5194/acp-10-9761-2010.

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Abstract. An algorithm is introduced to downscale the 0.6 and 0.8 μm spectral channels of the METEOSTAT SEVIRI satellite imager from 3×3 km2 (LRES) to 1×1 km2 (HRES) resolution utilizing SEVIRI's high-resolution visible channel (HRV). Intermediate steps include the coregistration of low- and high-resolution images, lowpass filtering of the HRV channel with the spatial response function of the narrowband channels, and the estimation of a least-squares linear regression model for linking high-frequency variations in the HRV and narrowband images. The importance of accounting for the sensor spati

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Querques, Giuseppe, Marco R. Pastore, Houda Khlifi, Anouk Georges, Lea Querques, and Eric H. Souied. "Integrated Imaging of Avascular Serous Pigment Epithelium Detachment in Age-related Macular Degeneration." Ophthalmology @ Point of Care 1, no. 1 (2017): oapoc.0000009. http://dx.doi.org/10.5301/oapoc.0000009.

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Introduction This study describes the imaging of avascular serous pigment epithelial detachment (PED) in age-related macular degeneration (AMD) patients using confocal scanning laser ophthalmoscopy and spectral-domain optical coherence tomography (SD-OCT). Methods A total of 18 patients with avascular serous PED underwent assessment of best-corrected visual acuity, infrared (IR) reflectance, fundus autofluorescence (FAF), fluorescein angiography (FA), indocyanine green angiography (ICGA), and SD-OCT evaluation at baseline and at last follow-up visit. The imaging of avascular PED was compared w

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Jia, Shoujun, Chun Liu, Hangbin Wu, and Chen Chen. "Image enhancement method for visual localization and mapping in complex light scenarios." IOP Conference Series: Earth and Environmental Science 1004, no. 1 (2022): 012014. http://dx.doi.org/10.1088/1755-1315/1004/1/012014.

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Abstract Visual localization and mapping have received considerable attention in the fields of computer vision, photogrammetry, and remote sensing. Image matching is key to visual localization and mapping. However, light is complex and uneven in real scenarios, creating difficulties in feature extraction and matching. Hence, feature mismatch and loss reduce the efficiency, accuracy, and robustness of visual localization and mapping. We developed a visual localization and mapping method for complex light scenarios based on image enhancement. Starting with initial images, the irradiance and refl

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Su, Ye, Ye Yutang, Xie Yu, et al. "Swift perspective shape matching algorithm based on Phong’s model for FPC stiffener bonding systems." Circuit World 40, no. 4 (2014): 141–49. http://dx.doi.org/10.1108/cw-06-2014-0023.

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Purpose – This paper aims to solve the issue of target positioning in auto stiffener bonder (ASB) systems for flexible printed circuits. Design/methodology/approach – The proposed approach uses Phong’s bidirectional reflectance distribution function (BRDF) model to simulate the reflection of light off a target in ASB systems to predict the current pose of the target based on image brightness, update the template, decrease the initial errors in the template and narrow down the search range. Findings – The experimental results indicate that the proposed approach can predict the inclination angle

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Ham, S. H., and B. J. Sohn. "Assessment of the calibration performance of satellite visible channels using cloud targets: application to Meteosat-8/9 and MTSAT-1R." Atmospheric Chemistry and Physics 10, no. 22 (2010): 11131–49. http://dx.doi.org/10.5194/acp-10-11131-2010.

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Abstract. To examine the calibration performance of the Meteosat-8/9 Spinning Enhanced Visible Infra-Red Imager (SEVIRI) 0.640-μm and the Multi-functional Transport Satellite (MTSAT)-1R 0.724-μm channels, three calibration methods are employed. Total eight months during the 2004–2007 period are used for SEVIRI, and total seven months during the 2007–2008 period are used for MTSAT-1R. First, a ray-matching technique is used to compare Meteosat-8/9 and MTSAT-1R visible channel reflectances with the well-calibrated Moderate Resolution Imaging Spectroradiometer (MODIS) 0.646-μm channel reflectance

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Gillis, J. E. "Selection for Substrate Reflectance-matching in Two Populations of Red-chinned Lizards (Sceloporus undulatus erythrocheilus) from Colorado." American Midland Naturalist 121, no. 1 (1989): 197. http://dx.doi.org/10.2307/2425672.

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Wang, Yanming, Yiu-lun Tang, Cheng-hao Lee, and Chi-Wai Kan. "A Computer Color-Matching Study of Reverse Micellar Dyeing of Wool with Reactive Dyes." Polymers 11, no. 1 (2019): 132. http://dx.doi.org/10.3390/polym11010132.

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Computer color-matching (CCM) and the levelness of poly(ethylene glycol)-based reverse-micellar dyed wool fabrics in octane and nonane were investigated and compared with a conventional water-based dyeing system. Reflectance curves and calibration curves exhibited no chromatic change and maintained high linearity in both dyeing systems. The linearity of water-dyed calibration curves was slightly higher than that of the reverse-micellar dyed curves. The color yield, in term of K/Ssum values, of solvent-dyed samples was found to be generally higher than that of water-based dyed samples at variou

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