Complexity control for high-efficiency video coding by coding layers complexity allocations

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題名:	Complexity control for high-efficiency video coding by coding layers complexity allocations
作者:	張寶基;Fang, Jiunn-Tsair;Liang, Kai-Wen;Chen, Zong-Yi;Hsieh, Wei;Chang, Pao-Chi
貢獻者:	資訊電機學院通訊工程學系
日期:	2016-03-01
上傳時間:	2026-04-23 12:59:04 (UTC+8)
出版者:	SPIE;Society of Photo-Optical Instrumentation Engineers
摘要:	摘要： The latest video compression standard, high-efficiency video coding (HEVC), provides quad-tree structures of coding units (CUs) and four coding tree depths to facilitate coding efficiency. The HEVC encoder considerably increases the computational complexity to levels inappropriate for video applications of power-constrained devices. This work, therefore, proposes a complexity control method for the low-delay P-frame configuration of the HEVC encoder. The complexity control mechanism is among the group of pictures layer, frame layer, and CU layer, and each coding layer provides a distinct method for complexity allocation. Furthermore, the steps in the prediction unit encoding procedure are reordered. By allocating the complexity to each coding layer of HEVC, the proposed method can simultaneously satisfy the entire complexity constraint (ECC) for entire sequence encoding and the instant complexity constraint (ICC) for each frame during real-time encoding. Experimental results showed that as the target complexity under both the ECC and ICC was reduced to 80% and 60%, respectively, the decrease in the average Bjøntegaard delta peak signal-to-noise ratio was ∼0.1 dB with an increase of 1.9% in the Bjøntegaard delta rate, and the complexity control error was ∼4.3% under the ECC and 4.3% under the ICC. 其他題名： J. Electron. Imaging 出版者： Society of Photo-Optical Instrumentation Engineers 出版日期： 2016-03-01 出處： Journal of electronic imaging, 2016-03, Vol.25 (2), p.023024-023024 版權： 2016 SPIE and IS&T 識別號： ISSN: 1017-9909 識別號： EISSN: 1560-229X 識別號： DOI: 10.1117/1.JEI.25.2.023024
顯示於類別:	[通訊工程學系] 期刊論文

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