Title :
Edge compensated transform coding
Author :
Lynch, William E. ; Reibman, Amy R. ; Liu, Bede
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
Transform based image compression has difficulty with image regions containing edges. Edge compensated transform coding (ECTC) addresses this problem by preprocessing to remove edges. This preprocessing is adapted to transform coding. The edge information is sent in a side channel and the edges are replaced at the receiver. Subjective improvement is demonstrated
Keywords :
data compression; edge detection; image coding; transform coding; edge block detector; edge compensated transform coding; edge information; image compression; image regions; preprocessing; receiver; side channel; subjective improvement; Compaction; Frequency; Image coding; Image edge detection; Image generation; Image reconstruction; Image segmentation; Laplace equations; Radio access networks; Transform coding;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413284
