Title :
Edge sensitive subband coding of images
Author :
Cinkler, Kalman ; Mertins, Alfred
Author_Institution :
Telecommun. Dept., Hamburg Univ. of Technol., Germany
Abstract :
In this paper, we introduce a family of novel edge preserving image coding techniques based on the discrete wavelet transform (DWT). These techniques utilize the edge map (which not necessarily contains closed curves) of the processed image or its subbands in the way that no filtering over edges is performed. This results in a reduction of power in the higher frequency bands. The achievable savings are higher than the additional bit rate needed for transmission of the edge map
Keywords :
edge detection; image coding; transform coding; transforms; wavelet transforms; discrete wavelet transform; edge map; edge preserving image coding; edge sensitive subband coding; Bit rate; Discrete wavelet transforms; Filter bank; Filtering; Frequency; Image coding; Image edge detection; Image segmentation; Kalman filters; Layout;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3192-3
DOI :
10.1109/ICASSP.1996.547757
