An new deblocking algorithm for DCT coded images using adaptive spatial filters

Jin Wang, Jongho Kim, Jechang Jeong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper introduces an adaptive postprocessing method in Block-based Discrete Cosine Transform (BDCT) coded images. We present a framework, which is a serial-concatenation of a 1-D simple deblocking filter and a 2-D directional filter. First, we classify the simple deblocking filter by an adaptive threshold depending on local statistical properties, and update block types appropriately by a simple rule, which affects the performance of deblocking progresses. Second, a 2-D directional filter is introduced to suppress the ringing artifacts caused at the sharp edges and the block discontinuities while preserving true edges and textural information. Finally, comprehensive experiments indicate that the proposed algorithm outperforms lots of deblocking methods in the literature, in terms of evaluation of PSNR and subjective visual qualities.

Original languageEnglish
Title of host publicationProceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009
Pages813-818
Number of pages6
DOIs
StatePublished - 2009 Dec 1
Event2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009 - Beijing, China
Duration: 2009 Nov 62009 Nov 8

Publication series

NameProceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009

Other

Other2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009
CountryChina
CityBeijing
Period09/11/609/11/8

Fingerprint

Discrete cosine transforms
Experiments

Keywords

  • Adaptive filters
  • Blocking artifact
  • Simple directional filter

Cite this

Wang, J., Kim, J., & Jeong, J. (2009). An new deblocking algorithm for DCT coded images using adaptive spatial filters. In Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009 (pp. 813-818). [5360917] (Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009). https://doi.org/10.1109/ICNIDC.2009.5360917
Wang, Jin ; Kim, Jongho ; Jeong, Jechang. / An new deblocking algorithm for DCT coded images using adaptive spatial filters. Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009. 2009. pp. 813-818 (Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009).
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abstract = "This paper introduces an adaptive postprocessing method in Block-based Discrete Cosine Transform (BDCT) coded images. We present a framework, which is a serial-concatenation of a 1-D simple deblocking filter and a 2-D directional filter. First, we classify the simple deblocking filter by an adaptive threshold depending on local statistical properties, and update block types appropriately by a simple rule, which affects the performance of deblocking progresses. Second, a 2-D directional filter is introduced to suppress the ringing artifacts caused at the sharp edges and the block discontinuities while preserving true edges and textural information. Finally, comprehensive experiments indicate that the proposed algorithm outperforms lots of deblocking methods in the literature, in terms of evaluation of PSNR and subjective visual qualities.",
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Wang, J, Kim, J & Jeong, J 2009, An new deblocking algorithm for DCT coded images using adaptive spatial filters. in Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009., 5360917, Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009, pp. 813-818, 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009, Beijing, China, 09/11/6. https://doi.org/10.1109/ICNIDC.2009.5360917

An new deblocking algorithm for DCT coded images using adaptive spatial filters. / Wang, Jin; Kim, Jongho; Jeong, Jechang.

Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009. 2009. p. 813-818 5360917 (Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - This paper introduces an adaptive postprocessing method in Block-based Discrete Cosine Transform (BDCT) coded images. We present a framework, which is a serial-concatenation of a 1-D simple deblocking filter and a 2-D directional filter. First, we classify the simple deblocking filter by an adaptive threshold depending on local statistical properties, and update block types appropriately by a simple rule, which affects the performance of deblocking progresses. Second, a 2-D directional filter is introduced to suppress the ringing artifacts caused at the sharp edges and the block discontinuities while preserving true edges and textural information. Finally, comprehensive experiments indicate that the proposed algorithm outperforms lots of deblocking methods in the literature, in terms of evaluation of PSNR and subjective visual qualities.

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Wang J, Kim J, Jeong J. An new deblocking algorithm for DCT coded images using adaptive spatial filters. In Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009. 2009. p. 813-818. 5360917. (Proceedings of 2009 IEEE International Conference on Network Infrastructure and Digital Content, IEEE IC-NIDC2009). https://doi.org/10.1109/ICNIDC.2009.5360917