Title :
Study of the coding in the progressive image transmission
Author :
Yunlian, Sun ; Gang, Shi ; Yunping, Chen
Author_Institution :
Wuhan Univ. of Hydraulic & Electr. Eng., China
Abstract :
Direction coding is a new method of image coding. The human visual model is used to make direction filters and high compression ratios are obtained. Direction coding not only deals with the continuous component of an image by subsampling it with high compression ratio, but also does some things with the discontinuous component of the image. We apply the direction coding method to narrowband image transmission in a progressive way. Experiments were made on normal telephone lines
Keywords :
Huffman codes; data compression; edge detection; filtering theory; image coding; image sampling; visual communication; Huffman coding; continuous image component; direction coding; direction filters; discontinuous image component; edge detection; high compression ratios; human visual model; image coding; narrowband image transmission; progressive image transmission; telephone lines; Brightness; Filters; Humans; Image coding; Image communication; Image edge detection; Lenses; Narrowband; Telephony; Transmission line discontinuities;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.566276
