DocumentCode
1320707
Title
Region coding using improved B-spline surface approximation
Author
Pan, Jinhui ; Liao, Qingmin
Author_Institution
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Volume
36
Issue
2
fYear
2000
fDate
1/20/2000 12:00:00 AM
Firstpage
129
Lastpage
130
Abstract
A new arbitrary region coding algorithm using a B-spline surface is presented. Pixels in the coded region are regarded as valid image data, and the parameters of the B-spline surface are calculated under certain optimisation criteria. Instead of the traditional least squares error (LSE) criterion, a least squares weighted error (LSWE) criterion is used as the approximation criterion. Simulation results show that the LSWE approach is much better for region coding than the LSE approach
Keywords
image coding; least squares approximations; optimisation; splines (mathematics); B-spline surface approximation; LSWE criterion; approximation criterion; least squares weighted error criterion; optimisation criteria; region coding algorithm;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000186
Filename
833138
Link To Document