DocumentCode
384292
Title
A POCS-based method for reducing artifacts in BDCT compressed images
Author
Zou, Ju Jia ; Yan, Hong
Author_Institution
Sch. of Electr. & Inf. Eng., Sydney Univ., NSW, Australia
Volume
2
fYear
2002
fDate
2002
Firstpage
253
Abstract
The theory of projection onto convex sets (POCS) is applied to reduce blocking artifacts in compressed images coded by the block discrete cosine transform (BDCT). An image before compression is simulated by a triangular mesh, which is the basis of a proposed smoothness constraint set. The mesh is constructed by dividing each block into a set of triangles. The proposed method outperforms four existing methods subjectively and objectively.
Keywords
data compression; discrete cosine transforms; image coding; artifacts reduction; block discrete cosine transform; blocking artifacts; compressed images; projection onto convex sets; smoothness constraint set; Councils; Digital images; Hilbert space; Image coding; Image converters; Information technology; Low pass filters; MPEG 4 Standard; Transform coding; Video compression;
fLanguage
English
Publisher
ieee
Conference_Titel
Pattern Recognition, 2002. Proceedings. 16th International Conference on
ISSN
1051-4651
Print_ISBN
0-7695-1695-X
Type
conf
DOI
10.1109/ICPR.2002.1048286
Filename
1048286
Link To Document