[1] Wang Chong, Zhao Li, Zou Cairong,. Perceptual video coding method based on JND and AR model [J]. Journal of Southeast University (English Edition), 2010, 26 (3): 384-388. [doi:10.3969/j.issn.1003-7985.2010.03.003]

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Perceptual video coding method based on JND and AR model()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 3

Page:

384-388

Research Field:

Information and Communication Engineering

Publishing date:

2010-09-30

Info

Title:

Perceptual video coding method based on JND and AR model

Author(s):

Wang Chong;  Zhao Li;  Zou Cairong

School of Information Science and Engineering, Southeast University, Nanjing 210096, China

Keywords:

perceptual video coding;  texture synthesis;  just-noticeable-distortion;  AR model

PACS:

TN911.73

DOI:

10.3969/j.issn.1003-7985.2010.03.003

Abstract:

In order to achieve better perceptual coding quality while using fewer bits, a novel perceptual video coding method based on the just-noticeable-distortion(JND)model and the auto-regressive(AR)model is explored. First, a new texture segmentation method exploiting the JND profile is devised to detect and classify texture regions in video scenes. In this step, a spatial-temporal JND model is proposed and the JND energy of every micro-block unit is computed and compared with the threshold. Secondly, in order to effectively remove temporal redundancies while preserving high visual quality, an AR model is applied to synthesize the texture regions. All the parameters of the AR model are obtained by the least-squares method and each pixel in the texture region is generated as a linear combination of pixels taken from the closest forward and backward reference frames. Finally, the proposed method is compared with the H.264/AVC video coding system to demonstrate the performance. Various sequences with different types of texture regions are used in the experiment and the results show that the proposed method can reduce the bit-rate by 15% to 58% while maintaining good perceptual quality.

References:

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Memo

Memo:

Biography: Wang Chong(1982—), male, doctor, lecturer, wangchong219@163.com.
Foundation item: The National Natural Science Foundation of China(No.60472058, 60975017).
Citation: Wang Chong, Zhao Li, Zou Cairong. Perceptual video coding method based on JND and AR model[J].Journal of Southeast University(English Edition), 2010, 26(3):384-388.

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