On DCT coefficient distribution in video coding using quad-tree structured partition

Je Won Kang, Chang-Su Kim

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

2 Citations (Scopus)

Abstract

The recent image/video coding standards adopt a full quad-tree structured block partitioning with a number of different transform sizes. However, the statistical behavior of the transformed coefficients becomes more difficult to estimate than the previous standards while the single pdf might be enough for modeling the distribution in the previous standards. In this paper, we propose a novel probability density to model the distribution of the transformed coefficients obtained from different transform sizes. The proposed density model is mathematically derived, and the parameters are estimated from previously coded samples. Rate-Distortion (R-D) model is also established from the proposed density model. It is shown in experimental results that the proposed pdf is efficiently used for approximating the rate-distortion (R-D) relation when the different transform sizes are adapted for a coding.

Original languageEnglish
Title of host publication2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9786163618238
DOIs
Publication statusPublished - 2014 Feb 12
Event2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 - Chiang Mai, Thailand
Duration: 2014 Dec 92014 Dec 12

Other

Other2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
CountryThailand
CityChiang Mai
Period14/12/914/12/12

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ASJC Scopus subject areas

  • Signal Processing
  • Information Systems

Cite this

Kang, J. W., & Kim, C-S. (2014). On DCT coefficient distribution in video coding using quad-tree structured partition. In 2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 [7041654] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APSIPA.2014.7041654