ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
Recently several time-domain approaches relying on the generalized likelihood ratio test (GLRT) paradigm have been proposed for multiple antenna spectrum sensing in cognitive radi...
ECCV
2008
Springer
13 years 6 months ago
2008
Springer
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...
ICIAR
2010
Springer
13 years 8 months ago
2010
Springer
Accurate and precise estimation of the noise variance is often of key importance as an input parameter for posterior image processing tasks. In MR images, background data is well s...
SCALESPACE
2001
Springer
13 years 8 months ago
2001
Springer
We develop a novel time-selection strategy for iterative image restoration techniques: the stopping time is chosen so that the correlation of signal and noise in the filtered imag...
ISCAS
2005
IEEE
13 years 9 months ago
2005
IEEE
— In this paper, a novel approach is presented for designing multiplier-free state-space digital filters. The multiplier-free design is obtained by finding power-of-2 coeffici...
CVPR
2010
IEEE
13 years 11 months ago
2010
IEEE
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...
ICIP
2004
IEEE
14 years 5 months ago
2004
IEEE
Quantization-based watermarking schemes are vulnerable to amplitude scaling. Therefore, the scaling factor needs to be estimated at the decoder side, such that the received (attac...
ICIP
2006
IEEE
14 years 5 months ago
2006
IEEE
This paper proposes a hardware architecture of a video noise estimation algorithm capable of real-time processing. The objectives consist of adapting a computationally demanding n...
CVPR
2005
IEEE
14 years 6 months ago
2005
IEEE
Scale-spaces induced by diffusion processes play an important role in many computer vision tasks. Automatically selecting the most appropriate scale for a particular problem is a ...