Constant frame quality control for H.264/AVC

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題名:	Constant frame quality control for H.264/AVC
作者:	蘇柏齊;Wu, Ching-Yu;Su, Po-Chyi;Huang, Long-Wang;Chiou, Chia-Yang
貢獻者:	資訊電機學院資訊工程學系
關鍵詞:	Archiving;Coding;Control algorithms;Measurement;Multimedia;Original Article;Quality control;Signal to noise ratio
日期:	2013-01-01
上傳時間:	2026-04-23 13:25:55 (UTC+8)
出版者:	Cambridge University Press;Cambridge, UK: Cambridge University Press
摘要:	摘要： A frame quality control mechanism for H.264/AVC is proposed in this research. The research objective is to ensure that a suitable quantization parameter (QP) can be assigned to each frame so that the target quality of each frame will be achieved. One of the potential application is consistently maintaining frame quality during the encoding process to facilitate video archiving and/or video surveillance. A single-parameter distortion to quantization (D–Q) model is derived by training a large number of frame blocks. The model parameter can be determined from the frame content before the exact encoding process. Given the target quality for a video frame, we can then select an appropriate QP according to the proposed D–Q model. Model refinement and QP adjustment of subsequent frames can be applied by examining the coding results of previous data. Such quality measurements as peak signal to noise ratio (PSNR) and structural similarity (SSIM) can be employed. The experimental results verify the feasibility of the proposed constant quality video coding framework. 其他題名： APSIPA trans. signal inf. process 出版者： Cambridge, UK: Cambridge University Press 出版日期： 2013 出處： APSIPA transactions on signal and information processing, 2013, Vol.2 (1) 資源來源： Alma/SFX Local Collection 版權： Copyright © The Authors, 2013 識別號： ISSN: 2048-7703 識別號： EISSN: 2048-7703 識別號： DOI: 10.1017/ATSIP.2013.4
顯示於類別:	[資訊工程學系] 期刊論文

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