Objective image quality measure for block-based DCT coding

Author

Liu, Chi-Min ; Lin, Jine-Yi ; Wu, Kuo-Guan ; Wang, Chung-Neng

Author_Institution

Dept. of Comput. Sci. & Inf. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

43

Issue

3

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

511

Lastpage

516

Abstract

Block-based discrete cosine transform (DCT) coding has been widely adopted in image/video compression standards, such as JPEG and MPEG. Such coding will produce a noticeable artifact known as the blocking effect at very low bit rate applications. In the literature, there have been various postprocessing methods proposed to reduce the blocking effect. However, there is no suitable objective criterion evaluating the effectiveness of these various methods. This paper presents a new objective measure evaluating the postprocessing methods. The proposed measure also provides an analytical result on the underlying sources of artifacts

Keywords

block codes; data compression; discrete cosine transforms; image coding; interference suppression; telecommunication standards; transform coding; video coding; JPEG; MPEG; artifacts; block-based DCT coding; blocking effect; discrete cosine transform coding; image compression standard; objective image quality measure; postprocessing method; very low bit rate; video compression standard; Bit rate; Degradation; Discrete cosine transforms; Discrete transforms; Image coding; Image quality; Quantization; Testing; Transform coding; Video compression;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.628666

Filename

628666