Title :
Color estimation under Poisson noise
Author :
Trussell, H.J. ; Vrhel, M.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., NC State Univ., Raleigh, NC, USA
Abstract :
The dominance of Poisson noise over signal independent Gaussian noise and other types has been demonstrated for commercial digital color cameras. We present a new method for estimating CIE colorimeric values in the presence of Poisson noise. The new methods use multidimensional look-up tables (MLUTs) and are easily adapted to the local statistics of the image. The methods are shown to perform better than common methods that are based on signal independent noise models.
Keywords :
cameras; image colour analysis; image denoising; stochastic processes; table lookup; CIE colorimeric values; MLUT; Poisson noise; color estimation; digital color cameras; local statistics; multidimensional look-up tables; signal independent Gaussian noise; Cameras; Colored noise; Estimation; Image color analysis; Signal to noise ratio; Vectors; color estimation; denoising; digital cameras; digital imaging; noise models;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6637986
