NDLI: A mode dependent chroma intra smoothing algorithm for emerging HEVC standard

Content Provider	IEEE Xplore Digital Library
Author	He Xiao Feng Ye Min Chen Bo Yang Aidong Men
Copyright Year	2012
Description	Author affiliation: Beijing University of Posts and Telecommunications, Beijing 100876, China (He Xiao; Feng Ye; Min Chen; Bo Yang; Aidong Men)
Abstract	In this paper, a mode-dependent chroma intra smoothing algorithm for HEVC is proposed. As in other hybrid video coding frameworks, discontinuity between prediction samples and reference pixels on the edge of the current block may cause by intra prediction. Intra smoothing on the prediction samples is necessary to re educe discontinuity between prediction samples and reference pixels on the edge of the current block. In the current development of HEVC, mode-dependent intra smoothing (MDIS) has been present based on the size of prediction unit (PU) and the intra prediction mode. However, the MDIS is just applied on luma pixels. After our observation, the chroma pixels also need to be smooth. Generally, chroma pixels seem smoother than luma pixels. Therefore, it should apply a different filter to chroma pixels. The experiment result shows that mode-dependent intra chroma smoothing can improve the overall coding efficiency. Comparing the experiment result of the three sets of intra smoothing filter, it is concluded that the [14 1] filter can bring better coding efficiency than the [12 1] filter and [13 1] filter for intra chroma smoothing.
Starting Page	448
Ending Page	452
File Size	694384
Page Count	5
File Format	PDF
ISBN	9781467322010
e-ISBN	9781467322041
DOI	10.1109/ICNIDC.2012.6418793
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding Smoothing methods Intra prediction Prediction algorithms Encoding Complexity theory HEVC Helium Standards Intra smoothing
Content Type	Text
Resource Type	Article

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