Title :
A quadtree schema for vector quantization of image sequences
Author :
Arduini, Fabio ; De Natale, Francesco G B ; Desoli, Giuseppe S. ; Giusto, Daniele D.
Author_Institution :
Dept. of Biophys. & Electron. Eng., Genoa Univ., Italy
Abstract :
An approach to image sequence coding based on the classical vector quantization is presented. The novelty lies in the use of a quaternary tree structure to transmit the position information about moved blocks, thus exploiting the temporal interframe correlations. Moreover, an error-free predictor is used in order to remove residual intra- and interframe redundancies. Results obtained by this coder are satisfactory and allow the transmission of an image sequence over a 64-kb/s channel
Keywords :
data compression; encoding; picture processing; trees (mathematics); error-free predictor; image sequence coding; position information; quadtree schema; quaternary tree structure; temporal interframe correlations; vector quantization; Focusing; HDTV; Image coding; Image sequences; Layout; Redundancy; TV; Table lookup; Tree data structures; Vector quantization;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.161866
