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DPHOTO
2009
154views Hardware» more  DPHOTO 2009»
13 years 10 months ago
Mobile Imaging: the big challenge of the small pixel
As the number of imaging pixels in camera phones increases, users expect camera phone image quality to be comparable to digital still cameras. The mobile imaging industry is aware...
Feng Xiao, Joyce E. Farrell, Peter B. Catrysse, Br...
DPHOTO
2009
129views Hardware» more  DPHOTO 2009»
13 years 10 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
353views Hardware» more  DPHOTO 2009»
13 years 10 months ago
Fuzzy-based motion estimation for video stabilization using SIFT interest points
In this paper we present a technique which infers interframe motion by tracking SIFT features through consecutive frames: feature points are detected and their stability is evalua...
Sebastiano Battiato, Giovanni Gallo, Giovanni Pugl...
DPHOTO
2009
189views Hardware» more  DPHOTO 2009»
13 years 10 months ago
Automatic background generation from a sequence of images based on robust mode estimation
In this paper, we present a novel method for generating a background model from a sequence of images with moving objects. Our approach is based on non-parametric statistics and ro...
Desire Sidibé, Olivier Strauss, William Pue...
DPHOTO
2009
121views Hardware» more  DPHOTO 2009»
13 years 10 months ago
Very-large-area CCD image sensors: concept and cost-effective research
A new-generation full-frame 36x48 mm2 48Mp CCD image sensor with vertical anti-blooming for professional digital still camera applications is developed by means of the so-called b...
E. W. Bogaart, I. M. Peters, A. C. Kleimann, E. J....
DPHOTO
2009
137views Hardware» more  DPHOTO 2009»
13 years 10 months ago
Sensor information capacity and spectral sensitivities
In this paper, we numerically quantify the information capacity of a sensor, by examining the different factors than can limit this capacity, namely sensor spectral response, nois...
Frédéric Cao, Frederic Guichard, H. ...
DPHOTO
2009
126views Hardware» more  DPHOTO 2009»
13 years 10 months ago
Measuring texture sharpness of a digital camera
A method for evaluating texture quality as shot by a camera is presented. It is shown that usual sharpness measurements are not completely satisfying for this task. A new target b...
Frédéric Cao, Frederic Guichard, Her...
DPHOTO
2009
200views Hardware» more  DPHOTO 2009»
13 years 10 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
154views Hardware» more  DPHOTO 2009»
13 years 10 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
108views Hardware» more  DPHOTO 2009»
13 years 10 months ago
IDEAL: an image pre-processing architecture for high-end professional DSC applications
We developed and implemented a flexible image pre-processing concept to achieve an image sub-system for top-end professional digital still camera applications that ensures the hig...
Auke van der Heide, Takashi Urano, Frank Polderdij...