DCT-domain blind measurement of blocking artifacts in DCT-coded images

Author

Bovik, Alan C. ; Liu, Shizhong

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

1725

Abstract

A method for DCT-domain blind measurement of blocking artifacts is proposed. By constituting a new block across any two adjacent blocks, the blocking artifact is modeled as a 2-D step function. A fast DCT-domain algorithm has been derived to constitute the new block and extract all parameters needed. Then an human visual system (HVS) based measurement of blocking artifacts is conducted. Experimental results have shown the effectiveness and stability of our method. The proposed technique can be used for online image/video quality monitoring and control in applications of DCT-domain image/video processing

Keywords

data compression; discrete cosine transforms; image coding; numerical stability; transform coding; video coding; visual perception; 2D step function; DCT-coded images; DCT-domain blind measurement; HVS based measurement; blocking artifacts; fast DCT-domain algorithm; online image/video quality monitoring; stability; Bit rate; Brightness; Discrete cosine transforms; Image coding; Laboratories; Local activities; Monitoring; Stability; Transform coding; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.941272

Filename

941272