Title :
A modified chroma key technique for simple shape coding
Author :
Panusopone, Krit ; Chen, Xuemin
Author_Institution :
Dept. of Adv. Technol., Gen. Instrum. Corp., San Diego, CA, USA
Abstract :
This paper presents a simple technique to code shape information without explicitly coding the entire alpha plane. The proposed technique includes shape information in the input video by using chroma keying. The decoder recovers shape information via thresholding. This paper also describes how to compute the optimal threshold to reduce coding error.
Keywords :
coding errors; decoding; image colour analysis; image representation; video coding; coding error reduction; decoder; input video; key color; modified chroma keying; optimal threshold; shape coding; shape information; shape representation; thresholding; Bit rate; Decoding; Instruments; MPEG 4 Standard; Shape; Signal generators; Signal processing; Standards development; Switches; Video compression;
Conference_Titel :
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
Print_ISBN :
0-7803-5700-0
DOI :
10.1109/ACSSC.1999.832426
