Academic literature on the topic 'REFLECTANCE MATCHING'

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Journal articles on the topic "REFLECTANCE MATCHING"

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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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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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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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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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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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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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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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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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