Title :
Model-based detection and correction of corrupted wavelet coefficients
Author :
Strobel, Norbert ; Mitra, Sanjit K. ; Manjunath, B.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
Image decomposition based on the discrete wavelet transform (DWT) has been proposed for efficient storage and progressive transmission of images for visual browsing in digital image libraries. Although the compression aspects of the DWT have been carefully researched, reconstruction errors due to corrupted wavelet coefficients have received less attention. In this paper we consider the problem of bit errors affecting uniformly quantized wavelet coefficients. The proposed method, which is based on a local image model, simultaneously detects and masks corrupted wavelet coefficients
Keywords :
error correction; error detection; image reconstruction; wavelet transforms; bit errors; corrupted wavelet coefficients; discrete wavelet transform; image decomposition; local image model; model-based correction; model-based detection; reconstruction errors; uniformly quantized wavelet coefficients; Decoding; Discrete wavelet transforms; Error correction; Filters; Image coding; Image edge detection; Image processing; Image reconstruction; Signal processing; Wavelet coefficients;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.648118
