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研究生:盧峯毅
研究生(外文):Lu, Fengyi
論文名稱:具有頻寬適應功能之可調式多視角視訊串流系統
論文名稱(外文):Scalable Multi-view Video Streaming System with Bandwidth Adaptation
指導教授:朱元三
指導教授(外文):Chu, Yuansun
口試委員:葉經緯陳中和許明華黃穎聰
口試委員(外文):Yeh,ChingweiChen,ChunghoSheu,MinghwaHwang,Yintsung
口試日期:2012-07-23
學位類別:碩士
校院名稱:國立中正大學
系所名稱:電機工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:70
中文關鍵詞:可調式視訊編碼多視角視訊編碼頻寬適應
外文關鍵詞:H.264/SVCH.264/MVCbandwidth adaptation
相關次數:
  • 被引用被引用:0
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  • 下載下載:6
  • 收藏至我的研究室書目清單書目收藏:0
因應高畫質2D視訊、3D視訊等影像資料量的大幅提升,因此傳送影像資料所需之頻寬也必須相應增加。然而頻寬的變化、影像資料量的變化,會對傳輸造成影響。當頻寬不足時,視訊無法即時傳輸到客戶端,會造成畫面的延遲甚至畫面遺失,當頻寬足夠時,若可傳輸的資料量預設值太小,則會造成視訊品質不佳,頻寬使用率下降。H.264/SVC視訊壓縮編解碼格式雖然具有多層編碼的特性,提供空間、時間、品質三種可調式,但其主要只針對單視角影像,若延伸至多視角影像,會有編碼效率、解碼次數、頻寬分配的問題。H.264/MVC視訊壓縮編解碼格式能夠有效壓縮多視角影像,只需一次解碼即可得到所有視角影像,並且提供視角可調式,但是相較於SVC,MVC缺少了空間、時間、品質三種可調式,對於網路頻寬不穩定變動的適應性差。本論文提出之策略,分成可調式多視角影像串流擷取器和頻寬適應策略兩部分。可調式多視角影像串流擷取器使用多視角視訊編碼技術,可以支援單視角、多視角視訊服務,並加入可調式視訊編碼,空間、時間、品質三種可調式概念,增加多視角視訊編碼的頻寬適應性。頻寬適應策略則提高可調式多視角影像串流擷取器之網路頻寬適應性,且有效利用有限的可用頻寬,提供較好的觀看品質。透過實驗證明,當在本論文模擬之頻寬不足的情況下,本論文提出之策略都可以提供90%以上的頻寬使用率,且Ballroom影像平均PSNR為34 dB,Oldtimers影像平均PSNR為34dB。
The amount of data of High-definition 2D video and 3D video are significantly increasing, the bandwidth to transfer video data also have to increase. The changes of bandwidth and video data will effect transmission. When bandwidth is not insufficient, it may result in delay and loss screen because video data can't be immediately sent to the client. When the bandwidth is sufficient, if the default is too small amount of data transferred, it will result in poor video quality and bandwidth utilization decreased. Although H.264/SVC has the characteristics of the multi-layer coding and provides spatial, temporal and quality scalability, it focuses on single view video and has the question of compression ratio, decoding times and bandwidth allocation extended to multi-view video. H.264/MVC compresses multi-view video efficiently, can get all of view video by decoding once, and provides view scalability. Compares with H.264/SVC, H.264/MVC lacks spatial, temporal and quality scalability and has poor adaptability to unstable changes of network bandwidth. The paper proposes scalable multi-view video streaming extractor and bandwidth adaptation strategy. Scalable multi-view video streaming extractor uses multi-view video coding, supports single-view and multi-view video service and joins spatial, temporal and quality scalability to increase the bandwidth adaptability. Bandwidth adaptation strategy improves the bandwidth adaptability of scalable multi-view video streaming extractor, increases bandwidth utilization and provides better viewing quality. Experiments show that, when the bandwidth is insufficient, it provides more than 90% of bandwidth utilization and the average PSNR of Ballroom and Oldtimers are beyond 34dB.
第一章 簡介 1
1.1 序論 1
1.2 研究動機 2
1.3 論文架構 3
第二章 背景與相關研究 4
2.1 背景 4
2.1.1 H.264/AVC(Advanced Video Coding) 4
2.1.2 H.264/SVC(Scalable Video Coding) 6
2.1.3 H.264/MVC(Multi-View Video Coding) 10
2.2 相關研究 12
第三章 多視角視訊編碼位元率分析 17
3.1 影像樣本與位元率計算 17
3.2 編碼設定與位元率的關係 19
3.2.1 GOP與位元率的關係 19
3.2.2 視角數量與位元率的關係 21
3.2.3 解析度與位元率的關係 22
3.2.4 BasisQP與位元率的關係 24
3.2.5 時間層與位元率的關係 26
3.3 位元率分析結果 28
第四章 具有頻寬適應功能之可調式多視角視訊串流系統 29
4.1 系統架構 29
4.2 可調式多視角視訊編碼擷取器 30
4.3 頻寬適應策略 37
4.4 完整之系統流程 40
第五章 結果與分析 41
5.1 實驗樣本與軟硬體規格 41
5.2 實驗環境 42
5.3 視角數選擇 43
5.4 方法比較與分析 47
第六章 結論 55
參考文獻 56

[1]Heiko Schwarz, Detlev Marpe, and Thomas Wiegand, “Overview of the Scalable Video Coding Extension of the H.264/AVC Standard”, IEEE Transmission on Circuit and Systems for Video Technology, vol. 17, no. 9, pp. 1103-1120. September 2007.
[2]Y.S. Ho, K.J. Oh, “Overview of Multi-view Video Coding,” in Systems, Signals and Image Processing, 2007 and 6th EURASIP Conference focused on Speech and Image Processing, Multimedia Communications and Services. 14th International Workshop on pp. 5 – 12, 27-30 June 2007.
[3]Gurler, C.G. et al., Flexible Transport of 3D Video over Networks, Journal of Proceedings of IEEE, Vol. 99, No. 4, pp. 694 -707, April 2011.
[4]Thomas Wiegand, Gary J. Sullivan, Gisle Bjøntegaard, and Ajay Luthra “Overview of the H.264/AVC Video Coding Standard”, IEEE Transmission on Circuit and Systems for Video Technology, vol. 13, no. 7, pp. 560-576, July 2003.
[5] 國立台北科技大學資訊工程所視訊編碼與傳輸研究室曾現均,“H.264先進視訊編碼概述”
[6]Heiko Schwarz, Detlev Marpe, and Thomas Wiegand, “Overview of the Scalable H.264/MPEG4-AVC Extension”, IEEE International Conference on Image Processing, Atlanta, GA Oct. 2006.
[7]RTP Payload Format for Scalable Video Coding
http://tools.ietf.org/html/draft-ietf-avt-rtp-svc-27
[8]MVC/SVC Storage Format
http://www.ist-sea.eu/Public/SEA_D3.2_HHI_FF_20090129.pdf
[9]A. Vetro, T. Wiegand, and G. Sullivan, “Overview of the stereo and multiview video coding extensions of the H.264/MPEG-4 AVC standard,” Proc. IEEE, vol. 99, no. 4, pp. 694–707, Apr. 2011.
[10] Dieu Thanh Nguyen and Joern Ostermann, “Congestion Control for Scalable Video Streaming Using the Scalability Extension of H.264/AVC”, IEEE Journal of Selected Topics in Signal Processing, vol. 1, no. 2, August 2007.
[11] Young-uk Chung, “Symmetrical frame discard method for 3D video over IP networks,” on IEEE Transactions Consumer Electronics, vol. 56, pp. 2790–2796, November 2010.
[12] Hyun Jong Kim and Seong Gon Choi, “Design of video streaming service quality control system using available bandwidth information”, in Advanced Communication Technology (ICACT), pp. 1540-1544, February 2011.
[13] nVidia提供免費的3D影片下載
http://www.nvidia.com/object/GeForce_3D_Vision_3D_Movies.html
[14] JMVM SoftwareManual
http://www.docin.com/p-1120179.html
[15] Iperf-2.0.5 source code
http://sourceforge.net/projects/iperf/
[16] Netmonitor-0.4b source code
http://ftp.heanet.ie/disk1/sourceforge/n/project/ne/netmonitor/netmonitor/netmonitor-0.4b/

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