Spatial selectivity modulated just-noticeable-distortion profile for video

Author

Lu, Zhongkang ; Lin, Weisi ; Yang, X.K. ; Ong, E.P. ; Yao, S.S.

Author_Institution

Inst. for Infocomm Res., Agency for Sci., Technol. & Res., Singapore, Singapore

Volume

3

fYear

2004

fDate

17-21 May 2004

Abstract

Both visual sensitivity and spatial selectivity determine the overall visibility threshold at each pixel in an image, according to the physiological and psychological evidence towards the human visual system (HVS). Visual sensitivity can be decided by an existing estimator for just-noticeable-distortion (JND). A computational model is proposed for incorporating a selectivity measure into the JND profile so that more effective noise shaping is possible in various applications. Experimental results with noise-embedded video sequences confirm that the introduction of spatial selectivity enhances the performance of the JND profile used in noise shaping.

Keywords

distortion; image sequences; parameter estimation; random noise; sensitivity; video signal processing; visual perception; HVS; human visual system; just-noticeable-distortion profile; noise shaping; noise-embedded video sequences; spatial selectivity; visual sensitivity; Biomedical optical imaging; Computational modeling; Eyes; Humans; Machine vision; Noise shaping; Optical noise; Photoreceptors; Psychology; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8484-9

Type

conf

DOI

10.1109/ICASSP.2004.1326642

Filename

1326642