2014 IEEE International Conference on Computational Photography (ICCP) 2014
DOI: 10.1109/iccphot.2014.6831801
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Rethinking color cameras

Abstract: Digital color cameras make sub-sampled measurements of color at alternating pixel locations, and then "demosaick" these measurements to create full color images by up-sampling. This allows traditional cameras with restricted processing hardware to produce color images from a single shot, but it requires blocking a majority of the incident light and is prone to aliasing artifacts. In this paper, we introduce a computational approach to color photography, where the sampling pattern and reconstruction process are… Show more

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Cited by 19 publications
(36 citation statements)
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“…More recently, Chakrabarti et al [27] proposed a panchromatic predominant CFA, which samples colors with the Bayer pattern very sparsely ( Fig. 3(h)).…”
Section: A Regular Cfasmentioning
confidence: 94%
“…More recently, Chakrabarti et al [27] proposed a panchromatic predominant CFA, which samples colors with the Bayer pattern very sparsely ( Fig. 3(h)).…”
Section: A Regular Cfasmentioning
confidence: 94%
“…[ 75 ] The main reason for the lack of color constancy in these image sensors stems from their broad spectral response and the need to include a color fi lter, which necessitates the reconstruction of the fi nal image. [ 76 ] This is one of the great challenges in color imaging and signifi cant effort has gone into the development of image processing technologies and algorithms to overcome the deficiencies of the photodiode response. [ 77,78 ] However, thus far the different approaches have failed to deliver sensors with the required color accuracy.…”
Section: The Problem Of Color Constancymentioning
confidence: 99%
“…An improved design would allow more number or a greater density of NIR pixels, thus improving the quality of the acquired images. Design strategies such as sampling colour at a very sparse set of locations and then propagating throughout the image with guidance from an unaliased monochrome NIR channel [7] could possibly be adapted for this purpose. Such a design should accommodate the required optical resolution at both NIR and visible wavelengths and achieve a large iris pixel density , with 100+ pixels across iris diameter.…”
Section: Discussionmentioning
confidence: 99%