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http://hdl.handle.net/10397/61623
Title: | Adaptive search range by neighbouring depth intensity weighted sum for HEVC texture coding | Authors: | Lee, TK Chan, YL Siu, WC |
Issue Date: | Jun-2016 | Source: | Electronics letters, June 2016, v. 52, no. 12, p. 1018-1020 | Abstract: | High-efficiency video coding (HEVC) outperforms H.264/AVC by providing a bitrate reduction of about 50% while having almost the same perceptual quality. It adopts more flexible partitioning in motion estimation (ME) which gains higher coding efficiency at a cost of increased coding complexity. Depth maps in the emerging multi-view plus depth videos are exploited to adjust the search range in ME for HEVC complexity reduction. With the aid of depth intensity variations among neighbouring blocks, the proposed algorithm derives weights to the neighbouring blocks and establishes an adaptive search range according to the weighted sum of the motion vectors from the neighbouring blocks. Compared with the fast test zone (TZS) search in HEVC, the proposed algorithm saves 65% coding time in ME on average with insignificant rate-distortion degradation. | Publisher: | Institution of Engineering and Technology | Journal: | Electronics letters | ISSN: | 0013-5194 | EISSN: | 1350-911X | DOI: | 10.1049/el.2016.0261 | Rights: | © The Institution of Engineering and Technology 2016 This is the peer reviewed version of the following article: Lee, T. K., Chan, Y. L., & Siu, W. C. (2016). Adaptive search range by neighbouring depth intensity weighted sum for HEVC texture coding. Electronics Letters, 52(12), 1018-1020, which has been published in final form at https://doi.org/10.1049/el.2016.0261. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
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