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Perceptual Color Characterization of Cameras
2014
Sensors
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Color camera characterization, mapping outputs from the camera sensors to an independent color space such as XY Z, is an important step in the camera processing pipeline. ...
In this paper, we propose to use the spherical sampling method, recently published by Finlayson et al. to perform a perceptual color characterization. ...
of colors in images, and takes a step towards characterizing perceptual, as well as physical, aspects of the color. ...
doi:10.3390/s141223205
pmid:25490586
pmcid:PMC4299059
fatcat:zetxrya66nc2zorl6q2ssamy5i
Seeing, adapting to, and reproducing the appearance of nature
2014
Applied Optics
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The perception of color in nature is a complex multidimensional phenomenon. ...
The color experience is reduced to the appearance attributes of brightness, lightness, colorfulness, chroma, saturation, and hue from spectral energy distributions in the scene, while the vast range of ...
Ultimately, all these mechanisms of color perception reduce the spectral stimulus array to six perceptual dimensions of color appearance. ...
doi:10.1364/ao.54.00b107
pmid:25967816
fatcat:gghg4ns5bzfcjoeuepcmvqrrby
Image quality evaluation of video conferencing solutions with realistic laboratory scenes
2022
IS&T International Symposium on Electronic Imaging Science and Technology
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in terms of exposure, dynamic range, color and skin tone rendering, focus, texture, and noise. ...
Our results are consistent with perceptual evaluation and allow for an objective comparison of very different systems. ...
The measurements and their interpretation should be enough to characterize the cameras on the following general attributes: exposure, color, texture, noise, focus, and artifacts. ...
doi:10.2352/ei.2022.34.9.iqsp-318
fatcat:vua4cykob5gwdklqlemmvh2ft4
COLOR MANAGEMENT IMPLEMENTATION IN DIGITAL PHOTOGRAPHY
2007
Journal of Information and Organizational Sciences
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The special color reference target for digital camera characterization was developed, applied and tested. ...
A testing procedure for characterizing digital camera is described. This procedure is target-based, thus providing objective measurement of quality. ...
Creation of a camera profile starts with choosing a color reference target (characterization target). ...
doaj:c70ffb950cf24669a1b6d53fc7772f48
fatcat:swjqadjlg5dxnl6jcb2qwg7a6a
Scene Analysis Using Fusion Of Range And Color Data
1998
Zenodo
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Publication in the conference proceedings of EUSIPCO, Rhodes, Greece, 1998 ...
The parameter κ allows us to characterize the non colored voxels for which κ=0 (for instance: the points which belong to a shadow zone for the camera). ...
USING COLOR INFORMATION
Perceptual color space representation Most of the edge information is provided by the intensity component of the image [7] . ...
doi:10.5281/zenodo.36475
fatcat:5idiwo232begtgdxt2s4nm3d3e
Practical spectral characterization of trichromatic cameras
2011
Proceedings of the 2011 SIGGRAPH Asia Conference on - SA '11
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-Approach for Multi spectral characterization of trichromatic camera • Estimating wide range of environment − Taking color chart and Measuring average light − Using spectrophotometer effective spectral ...
Problem of radiometric calibration on camera device -Requiring costly hardware -Limitation of Controlled acquisition conditions -Rarely consideration with spectral response of camera Proposed method ...
The error was computed using L1 distance in device RGB space (see equation (17) ) as well as perceptual Per camera, three photographs of the color chart lit by neon, HMI and halogen lamps have been used ...
doi:10.1145/2070752.2024204
fatcat:nithadgcubenxkxbj7nyyek3dm
Practical spectral characterization of trichromatic cameras
2011
Proceedings of the 2011 SIGGRAPH Asia Conference on - SA '11
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-Approach for Multi spectral characterization of trichromatic camera • Estimating wide range of environment − Taking color chart and Measuring average light − Using spectrophotometer effective spectral ...
Problem of radiometric calibration on camera device -Requiring costly hardware -Limitation of Controlled acquisition conditions -Rarely consideration with spectral response of camera Proposed method ...
The error was computed using L1 distance in device RGB space (see equation (17) ) as well as perceptual Per camera, three photographs of the color chart lit by neon, HMI and halogen lamps have been used ...
doi:10.1145/2024156.2024204
fatcat:6wo4x5ejmrbtthoxpuxy5ho2ce
Practical spectral characterization of trichromatic cameras
2011
ACM Transactions on Graphics
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-Approach for Multi spectral characterization of trichromatic camera • Estimating wide range of environment − Taking color chart and Measuring average light − Using spectrophotometer effective spectral ...
Problem of radiometric calibration on camera device -Requiring costly hardware -Limitation of Controlled acquisition conditions -Rarely consideration with spectral response of camera Proposed method ...
The error was computed using L1 distance in device RGB space (see equation (17) ) as well as perceptual Per camera, three photographs of the color chart lit by neon, HMI and halogen lamps have been used ...
doi:10.1145/2070781.2024204
fatcat:ayh5nabgpzco5bhdadczajg5tu
Comparative analysis of color architectures for image sensors
1999
Sensors, Cameras, and Applications for Digital Photography
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We have developed a software simulator to create physical models of a scene, compute camera responses, render the camera images and to measure the perceptual color errors (CIELAB) between the scene and ...
We compare three color architectures for digital cameras: (a) a sensor array containing three interleaved color mosaics, (b) an architecture using dichroic prisms to create three spatially separated copies ...
ACKNOWLEDGMENTS This work was supported by the Programmable Digital Camera project at Stanford University (http://smartcamera.stanford.edulpdc.html). ...
doi:10.1117/12.342860
fatcat:amu6k7wl3nbg3gztznyl5dppha
Adversarial Texture Optimization From RGB-D Scans
2020
2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
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Although the performance drops for all methods with the increase of camera/geometry errors, our approach maintains the best perceptual quality as the errors increase. ...
Perceptual loss under increasing camera or geometry errors; we outperform existing methods at various levels of error.
Figure 9 . 9 Figure 9. Comparing different discriminator options. ...
doi:10.1109/cvpr42600.2020.00163
dblp:conf/cvpr/HuangTDKJGNF20
fatcat:xkq7u6shuvfcfngyuluiuhrn5a
Perceptually based tone mapping for low-light conditions
2011
ACM Transactions on Graphics
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Perceptually Based Tone Mapping for Low-Light Conditions We present a perceptually based algorithm for modeling the color shift that occurs for human viewers in low-light scenes. ...
While our tone mapping operator works with spectral data from any source, we show how to produce spectral data of static scenes using multiple images and a camera with known spectral sensitivity. ...
This communication of color to the brain is believed to be characterized by the three-dimensional opponent color model. ...
doi:10.1145/2010324.1964937
fatcat:jk7h2wrvw5bhlmnajbguto5ehi
CORRECT USE OF COLOR FOR CULTURAL HERITAGE DOCUMENTATION
2019
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Once the camera is characterized, users obtain output images in the sRGB space that is independent of the sensor of the camera. ...
The objective of this study is to apply a rigorous procedure for the characterization of cameras based on a second-order polynomial model. ...
ACKNOWLEDGMENTS This research is partly funded by the Research and Development Aid Program PAID-01-16 of the Universitat Politècnica de València, through FPI-UPV-2016 Sub 1 grant. ...
doi:10.5194/isprs-annals-iv-2-w6-107-2019
fatcat:aqeh6qi27jemxmzipwgf6guhrm
Characterization for High Dynamic Range Imaging
2008
Computer graphics forum (Print)
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Camera characterization refers to the process of mapping device-dependent signals, such as digital camera RAW images, into a well-defined color space. ...
In this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. ...
Various camera characterization techniques have been proposed to find a mapping between these color spaces. ...
doi:10.1111/j.1467-8659.2008.01167.x
fatcat:wurjybnxezgwpeytt7g6zmenua
Characterization of image distortions in multi-camera systems
2009
Proceedings of the 2nd International ICST Conference on Immersive Telecommunications
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A new algorithm that characterizes the type of distortion in a given image captured by a multi-camera system is proposed and evaluated. ...
Examples and measurements are presented showing that single-view objective image quality measures are not adequate for perceptual assessment of multi-camera images. ...
Similarly, an image quality measure may prove valuable for accurate calibration of the multi-camera systems for both camera position and color properties. ...
doi:10.4108/immerscom.2009.14
dblp:conf/immerscom/SolhA09
fatcat:qqqfpyluyjbvhdhvpjreyrvsmi
Perceptually based tone mapping for low-light conditions
2011
ACM SIGGRAPH 2011 papers on - SIGGRAPH '11
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In this paper we present a perceptually based algorithm for modeling the color shift that occurs for human viewers in low-light scenes. ...
As light levels decrease and the rods become increasingly active they cause a perceived shift in color. ...
Acknowledgements We thank the members of the Berkeley Graphics Group, in particular Marty Banks, Maneesh Agrawala, and Kaccie Li, for their support and suggestions. ...
doi:10.1145/1964921.1964937
fatcat:rvwuom4s5bhvfilxm75pevxuha
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