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» Estimating demosaicing algorithms using image noise variance
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CVPR
2010
IEEE
14 years 6 months ago
Estimating demosaicing algorithms using image noise variance
We propose a method for estimating demosaicing algorithms from image noise variance. We show that the noise variance in interpolated pixels becomes smaller than that of directly o...
Jun Takamatsu, Yasuyuki Matsushita, Tsukasa Ogasaw...
IPAS
2007
14 years 1 months ago
Color filter array interpolation based on spatial adaptivity
Conventional approach in single-chip digital cameras is a use of color lter arrays (CFA) in order to sample di erent spectral components. Demosaicing algorithms interpolate these ...
Dmitriy Paliy, Radu Ciprian Bilcu, Vladimir Katkov...
ICIP
2007
IEEE
14 years 2 months ago
Efficient Demosaicing Through Recursive Filtering
We present a computationally efficient demosaicing algorithm based on a luminance-chrominance model of the Color Filter Array (CFA) image. We show that the chrominance information ...
Brice Chaix de Lavarène, David Alleysson, B...
TSP
2008
178views more  TSP 2008»
13 years 10 months ago
Monte Carlo Methods for Channel, Phase Noise, and Frequency Offset Estimation With Unknown Noise Variances in OFDM Systems
In this paper, we address the problem of orthogonal frequency-division multiplexing (OFDM) channel estimation in the presence of phase noise (PHN) and carrier frequency offset (CFO...
F. Septier, Yves Delignon, A. Menhaj-Rivenq, Chris...
ECCV
2008
Springer
14 years 18 days ago
Estimating Radiometric Response Functions from Image Noise Variance
We propose a method for estimating radiometric response functions from observation of image noise variance, not profile of its distribution. The relationship between radiance inten...
Jun Takamatsu, Yasuyuki Matsushita, Katsushi Ikeuc...