Title :
Wilcoxon-Mann-Whitney rank test-based filter for removing streak noise in transmitted DPCM images
Author :
Kundu, Amlan ; Wu, Wen-Rong
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA
fDate :
2/1/1990 12:00:00 AM
Abstract :
An algorithm is described for filtering streak noise in corrupted DPCM (differential pulse code modulated) images. In this scheme, the corrupted line is detected using the Wilcoxon-Mann-Whitney nonparametric test. This test mechanism requires no PCM-update multiplexing. The corrupted line is then filtered using a likelihood ratio test and data from the previous line. Typical experimental results are provided
Keywords :
filtering and prediction theory; noise; picture processing; pulse-code modulation; MLE; Wilcoxon-Mann-Whitney rank test-based filter; corrupted line; differential pulse code modulated; likelihood ratio test; picture processing; streak noise filtering; test mechanism; transmitted DPCM images; Bit rate; Brightness; Channel coding; Filtering algorithms; Filters; Image segmentation; Phase change materials; Protection; Statistics; Testing;
Journal_Title :
Communications, IEEE Transactions on
