Novel variance based approach to improving JPEG decoding

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

2 Scopus Citations
View graph of relations

Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publicationProceedings of the IEEE International Conference on Industrial Technology
Pages475-479
Volume2005
Publication statusPublished - 2005

Publication series

Name
Volume2005

Conference

Title2005 IEEE International Conference on Industrial Technology, ICIT 2005
PlaceHong Kong
CityHong Kong
Period14 - 17 December 2005

Abstract

For JPEG image compression, there exists a well known approach to optimal reconstruction of quantized AC DCT coefficients in the JPEG decoder. However, the Laplacian distribution parameter must be firstly determined. To solve this problem, this paper proposes a practical novel variance based approach to estimate the Laplacian parameter based on the quantized DCT coefficients, which are already available in the decoder side. Both the theoretical analysis and extensive experimental results demonstrate that the proposed approach can achieve almost the best decoded image quality improvement when compared with other approaches reported in the literature. More importantly, the proposed approach provides a more practical and efficient manner to estimate the Laplacian parameter, and is hence more suitable for real-world applications. © 2005 IEEE.

Citation Format(s)

Novel variance based approach to improving JPEG decoding. / Wang, Hanli; Kwong, Sam.

Proceedings of the IEEE International Conference on Industrial Technology. Vol. 2005 2005. p. 475-479 1600685.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review