Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/19750
標題: 視訊場景轉換之偵測演算法與H.264畫面內編碼模式之研究
A detection algorithm for scene changes and a study on H.264 intra mode encoding
作者: 楊詠竣
Yang, Yung-Chun
關鍵字: H.264;H.264;AVC;intra mode coding;inter mode coding;AVC;畫面內編碼;畫面間編碼
出版社: 資訊網路多媒體研究所
引用: [1] “Video Codec for Audiovisual Services at p×64kbit/s ITU-T Recommendation H.261, Version 1,” ITU-T, ITU-T Recommendation H.261, Version 1, 1990. [2] “Generic Coding of Moving Pictures and Associated Audio Information - Part 2: Video, ”ITU-T and ISO/IEC JTC 1, ITU-T Recommendation H.262 and ISO/IEC 13818-2 (MPEG-2), 1994. [3] “Draft ITU-T recommendation and final draft international standard of joint video specification (ITU-T Rec. H.264/ISO/IEC 14496-10 AVC,”in Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, JVT-G050, 2003. [4] Z. Chen, P. Zhou, and Y. He, "Fast Integer Pel and Fractional Pel Motion Estimation for JVT," Joint Video Team(JVT) of ISO/IEC MPEG & ITU-T VCEG, 2002. [5] I. Choi, J. Lee, and B. Jeon, “Fast coding mode selection with ratedistortion optimization for MPEG-4 part-10 AVC/H.264,” IEEE Trans. on Circuits and Systems for Video Technology, vol. 16, no. 12, pp 1557-1561, Dec. 2006. [6] L.C. Chou,C.D. Ye,Y.C. Liu and B.C Jhao, “Fast Predictive Search Algorithm for Video Motion Estimation”14th International Conference on Image Analysis and Processing (ICIAP 2007) [7] J.R.Jain anf A.K.Jain, “Displacement measurement and its application in interframe image coding,”IEEE Transaction Commun, vol.29, pp 1179-1808, Dec. 1981. [8] T. Koga, K. Iinuma, A. Iijima, and T. Ishiguro, “Motion compensated interframe coding for video conferencing,” in Proc. NTC81, New Orleans, LA, pp. C9.6.1-9.6.5, 1981. [9] P.J. Lee, Y.J.Shin,“Fast Inter-Frame Coding with Intra Skip Strategy in H.264 Video Coding,” IEEE Trans on Consumer Electronics, vol 55,No.1, Feb. 2009. [10] G. Liu, Q. Feng, “Fast Algorithm of the Inter Mode Decision for H.264/AVC” IEEE on Intelligent Information Technology Application Workshops, pp 558-561, Dec. 2008. [11] F.Pan, X. Lin, S. Rahardja, K. P. Lim, Z. G. Li, D. Wu, and S. Wu, “Fast Mode Decision Algorithm for Intra prediction in H.264/AVC, Video Coding,” IEEE Trans. on Circuits and Systems for Video Technology, vol. 15, no. 7, pp. 813-822, Jul. 2005. [12] L.M. Po, W.C. Ma "A Novel Four Step Search Algorithm For Fast Block Motion Estimation" IEEE Transactions on Circuits and Systems for Video Technology, vol. 6, no.3, pp 313-317, Jun. 1996. [13] T. Wiegand, G. J. Sullivan, G. Bjontegaard, A. Luthra,“Overview of the H.264/AVC Video Coding Standard,” IEEE Trans. on Circuits and Systems for Video Technology, vol.13, no.7,pp 560-576, Jul. 2003. [14] D. Wu, F. Pan, K. P. Lim, S. Wu, Z. G. Li, X. Lin, S. Rahardja, and C.C. Ko, “Fast intermode decision in H.264/AVC video coding,” IEEE Trans. Circuit Syst. Video Technol., vol. 15, no. 6, pp 953-958, Jun.2005. [15] P.Yin “Fast mode decision and motion estimation for H.264”, IEEE Int't Conference on Image Processing, vol III, pp 853-836, Sep. 2003. [16] S. Zhu and K. K. Ma, “A new diamond search algorithm for fast block matching motion estimation,” IEEE Trans. Image Process., vol. 9, no. 2, pp 287-290, Feb. 2000.
摘要: 
最新的視訊壓縮標準H.264/AVC是由JVT所制定,與先前的標準相比,在同樣的畫面品質下,它可省下一半左右的位元率,原因是它導入許多先前標準所沒有的技術,如:可變區塊大小、四分之一像素精確度搜尋,多重參考畫面…等。H.264雖然能有較好的壓縮率與影像品質,但卻帶來龐大的計算複雜度,造成即時編碼系統實現的困難度。

在本篇論文中,對於視訊場景轉換的情況,提出一種快速偵測的演算法,當有場景發生轉換時,可在不影響畫面品質的條件下,減少編碼新畫面時不必要的計算時間;另一方面,針對H.264的畫面內編碼模式嘗試做修改,希望探討使用不同於以往的預測方式,對畫面內模式品質與bit rate的影響。
URI: http://hdl.handle.net/11455/19750
其他識別: U0005-2008200918271800
Appears in Collections:資訊網路與多媒體研究所

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