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    Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106518


    Title: Constant frame quality control for H.264/AVC
    Authors: 蘇柏齊;Wu, Ching-Yu;Su, Po-Chyi;Huang, Long-Wang;Chiou, Chia-Yang
    Contributors: 資訊電機學院資訊工程學系
    Keywords: Archiving;Coding;Control algorithms;Measurement;Multimedia;Original Article;Quality control;Signal to noise ratio
    Date: 2013-01-01
    Issue Date: 2026-04-23 13:25:55 (UTC+8)
    Publisher: Cambridge University Press;Cambridge, UK: Cambridge University Press
    Abstract: 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
    Appears in Collections:[Department of Computer Science and information Engineering] journal & Dissertation

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