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DPHOTO
2009
154views Hardware» more  DPHOTO 2009»
14 years 11 months ago
Optimal color filter array design: quantitative conditions and an efficient search procedure
Most digital cameras employ a spatial subsampling process, implemented as a color filter array (CFA), to capture color images. The choice of CFA patterns has a great impact on the...
Yue M. Lu, Martin Vetterli
DPHOTO
2009
129views Hardware» more  DPHOTO 2009»
14 years 11 months ago
Extended depth-of-field using sharpness transport across color channels
In this paper we present an approach to extend the Depth-of-Field (DoF) for cell phone miniature camera by concurrently optimizing optical system and post-capture digital processi...
Frederic Guichard, Hoang-Phi Nguyen, Régis ...
DPHOTO
2009
200views Hardware» more  DPHOTO 2009»
14 years 11 months ago
Illuminant estimation and detection using near-infrared
Digital camera sensors are sensitive to wavelengths ranging from the ultraviolet (200-400nm) to the near-infrared (700-100nm) bands. This range is, however, reduced because the ai...
Clément Fredembach, Sabine Süsstrunk
DPHOTO
2009
138views Hardware» more  DPHOTO 2009»
14 years 11 months ago
Statistical identification and analysis of defect development in digital imagers
The lifetime of solid-state image sensors is limited by the appearance of defects, particularly hot-pixels, which we have previously shown to develop continuously over the sensor ...
Jenny Leung, Glenn H. Chapman, Zahava Koren, Israe...