DocumentCode
1915883
Title
Image coding using irregular subsampling and Delaunay triangulation
Author
Rila, Luciano
Author_Institution
Cardiology & Cardiovascular Surg. Unit, Bahia, Brazil
fYear
1998
fDate
20-23 Oct 1998
Firstpage
167
Lastpage
173
Abstract
The author proposes an image coding algorithm that effectively combines irregular subsampling and Delaunay triangulation. A set of sampling points in the image is selected in an incremental manner and used to construct a Delaunay triangulation. Each triangular region is then approximated using linear interpolation. The coding scheme is based on run-length coding (RLC). The incremental selection of the sampling points takes into account the image contents. The results show that the algorithm is robust and superior to JPEG at low bit rates of 0.20 bpp and 0.10 bpp
Keywords
data compression; image coding; interpolation; mesh generation; Delaunay triangulation; image coding; image coding algorithm; image contents; irregular subsampling; linear interpolation; low bit rates; run-length coding; sampling points; triangular region approximation; Cardiology; Humans; Image coding; Image sampling; Image storage; Interpolation; Linear approximation; Piecewise linear approximation; Transform coding; Visual perception;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Graphics, Image Processing, and Vision, 1998. Proceedings. SIBGRAPI '98. International Symposium on
Conference_Location
Rio de Janeiro
Print_ISBN
0-8186-9215-4
Type
conf
DOI
10.1109/SIBGRA.1998.722747
Filename
722747
Link To Document