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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 吳家麟(Ja-Ling Wu) | |
| dc.contributor.author | Chun-Wei Hsieh | en |
| dc.contributor.author | 謝俊瑋 | zh_TW |
| dc.date.accessioned | 2021-06-13T03:23:28Z | - |
| dc.date.available | 2008-08-01 | |
| dc.date.copyright | 2006-08-01 | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006-07-29 | |
| dc.identifier.citation | [1] J. Xin, C. Lin, and M. Sun, 'Digital video transcoding,' Proceedings of the IEEE, vol. 93, no. 1, pp. 84-97, 2005.
[2] A. Vetro and C. Sun, 'Video transcoding architectures and techniques: an overview,' Signal Processing Magazine, IEEE, vol. 20, no. 2, pp. 18-29, 2003. [3] I. Ahmad, X.Wei, Y. Sun, and Y. Zhang, 'Video transcoding: an overview of various techniques and research issues,' Multimedia, IEEE Transactions on, vol. 7, no. 5, pp. 793-804, 2005. [4] ISO/IEC 13818-2, 'Information technology - generic coding moving pictures and associated audio: Video,' 2000. [5] I. Rec, 'H. 264 & ISO/IEC 14496-10 AVC, Advanced video coding for generic audiovisual services,' ITU-T, May, 2003. [6] J. Ostermann, J. Bormans, P. List, D. Marpe, M. Narroschke, F. Pereira, T. Stockhammer, and T. Wedi, 'Video coding with H. 264/AVC: tools, performance, and complexity,' Circuits and Systems Magazine, IEEE, vol. 4, no. 1, pp. 7-28, 2004. [7] G. Bjontegaard and K. Lillevold, 'Context-Adaptive VLC Coding of Coeffcients,' JVT Document JVT-C028, Fairfax, VA, May, 2002. [8] D. Marpe, H. Schwarz, and T. Wiegand, 'Context-based adaptive binary arithmetic coding in the H. 264/AVC video compression standard,' Circuits and Systems for Video Technology, IEEE Transactions on, vol. 13, no. 7, pp. 620-636, 2003. [9] S. W. Golomb, 'Run-Length Encoding,' IEEE Trans. on Information Theory, vol. 12, pp. 399-401, 1966. [10] Y. Su, J. Xin, A. Vetro, and H. Sun, 'Effcient MPEG-2 to H. 264/AVC intra transcoding in transform-domain,' IEEE International Symposium on Circuits and Systems, 2005. ISCAS 2005., pp. 1234-1237, 2005. [11] J. Xin, A. Vetro, and H. Sun, 'Converting DCT Coeffcients to H. 264/AVC Transform Coeffcients,' Paci‾c-rim Conference on Multimedia (PCM), 2004. [12] Y.-J. Chuang, An Effcient Matrix-Based DCT Splitter/Merger and Its Applications in Multimedia Processing. PhD thesis, National Taiwan University, June 2005. [13] J. Xin, A. Vetro, and H. Sun, 'Effcient Macroblock Coding Mode Decision for H.264/AVC Video Coding,' Picture Coding Symposium (PCS), 2004. [14] C. Chen, P.Wu, and H. Chen, 'Transform-domain intra prediction for H.264,' IEEE International Symposium on Circuits and Systems, 2005. ISCAS 2005., pp. 1497-1500, 2005. [15] C. Chen, 'Transform-domain operations for mpeg-2 to h.264 transcoding,' Master's thesis, National Taiwan University, June 2005. [16] H. Kalva, B. Petljanski, and B. Furht, 'Complexity Reduction Tools for MPEG-2 to H. 264 Video Transcoding,' WAEAS Transactions on Information Science & Applications, vol. 2, pp. 295-300. [17] J. Youn, M. Sun, and C. Lin, 'Motion vector re‾nement for high-performance transcoding,' IEEE Transactions on Multimedia, vol. 1, no. 1, pp. 30-40, 1999. [18] M. Chen, Y. Chiang, H. Li, and M. Chi, 'Effcient multi-frame motion estimation algorithms for MPEG-4 AVC/JVT/H. 264,' Proceedings of the International Symposium on Circuits and Systems, 2004. (ISCAS'04.), vol. 3, 2004. [19] S.-K. Lin, 'Design and implementation of software-based mpeg-4 avc/h.264 encoder on multi-core processors,' Master's thesis, National Taiwan University, June 2006. [20] J. Hwang and T. Wu, 'Motion vector re-estimation and dynamic frame-skipping for video transcoding,' Thirty-Second Asilomar Conference on Signals, Systems, Computers, Paci‾c Grove, CA, pp. 1606-1610, 1998. [21] T. Shanableh and M. Ghanbari, 'Heterogeneous video transcoding to lower spatio-temporal resolutions and different encoding formats,' IEEE Transactions on Multimedia, vol. 2, no. 2, pp. 101-110, 2000. [22] M. Chen, M. Chu, and C. Pan, 'Effcient motion-estimation algorithm for reduced frame-rate video transcoder,' IEEE Transactions on Circuits and Systems for Video Technology, vol. 12, no. 4, pp. 269-275, 2002. [23] Z. Zhou, S. Sun, S. Lei, and M. Sun, 'Motion information and coding mode reuse for MPEG-2 to H. 264 transcoding,' IEEE International Symposium on Circuits and Systems, 2005. ISCAS 2005., pp. 1230-1233, 2005. [24] Z. Zhou, M. Sun, and Y. Hsu, 'Fast variable block-size motion estimation algorithm based on merge and slpit procedures for H. 264/MPEG-4 AVC,' Proceedings of the International Symposium on Circuits and Systems, 2004. ISCAS'04., vol. 3, 2004. [25] W. Choi, B. Jeon, and J. Jeong, 'Fast motion estimation with modi‾ed diamond search for variable motion block sizes,' Proceedings of International Conference on Image Processing, 2003., vol. 2, 2003. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/31889 | - |
| dc.description.abstract | 目前，影片被各式各樣的數位方式記錄和傳送，並且由於影像編碼技術的迅速進展，不同的影像標準陸續被提出。因為網路發展、設備的多樣化，和影片格式的增加，在不同的系統之中溝通與交流變得困難且重要。所以，將影片由一個系統的要求轉換到另一個的服務是必要的，轉碼器就是使這成為可能的關鍵技術。
MPEG-2是最普遍的錄影格式，大量的多媒體資訊被保存在這個格式。但是，越來越多數位設備被加入了H.264/AVC這項標準，這項新標準卓著的壓縮表現幫助我們將存貯設備的運用最佳化，為了保存更加重要的多媒體並且以低頻寬做出更好的錄影品質，MPEG-2到H.264的轉碼器是必須的。 在這份論文中，我們提出並實做了一個混合領域的MPEG-2到H.264/AVC轉碼器。在intra-transcoding方面，我們討論了轉換域(transform domain)方面的方法，而在inter-transcoding方面，則是探討了空間領域(spatial domain)方面的技術。最後，我們的轉碼器使用了轉換域的方法來解決intra-transcoding的問題，而inter-transcoding則是以空間領域的方式解決。這個轉碼器的實驗和分析讓我們對於MPEG-2到H.264/AVC的轉換技術有更深的了解。 | zh_TW |
| dc.description.abstract | Currently, video sources are always recorded and transmitted in various digital formats, and due to the
rapid progress of video coding technology, different video coding standards have been proposed. With the increase of networks, types of devices, and video formats, interoperability among different systems becomes more diffcult and important. Therefore, the service about converting video contents suiting the requirement of one system to another is necessary, and Video Transcoding is the key technology to make this possible. MPEG-2 is the most popular video format, many multimedia contents are preserved in this format. However, more and more digital devices are equipped with H.264/AVC, and the outstanding compression performance helps to utilize the storage devices, in order to preserve more important multimedia and to make better video quality with low bandwidth, an MPEG-2 to H.264 transcoder is a must. In this thesis, a Hybrid-Domain MPEG-2 to H.264/AVC Transcoder is proposed and implemented. For Intra-Transcoding, transform domain approachs are presented, and for Inter-Transcoding, spatial domain techniques are discussed. Finally, the transcoder solved Intra-Transcoding with transform do- main approach, and transcoding the inter-coded frames in spatial domain, and this transcoder is exaimed and analyzed to help us understand the transcoding procedure about MPEG-2 to H.264/AVC. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T03:23:28Z (GMT). No. of bitstreams: 1 ntu-95-R93922044-1.pdf: 1216993 bytes, checksum: 9ad77e898d32f4ebfc888c5e3df9ce5c (MD5) Previous issue date: 2006 | en |
| dc.description.tableofcontents | Chapter
1 Introduction : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 1 1.1 Video Transcoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 MPEG-2 Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 H.264 Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.4 Research Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.5 Thesis Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Overview of MPEG-2 and H.264/AVC : : : : : : : : : : : : : : : : : : : : : : : : : : : : 5 2.1 Pro‾les and Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Picture Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Entropy Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 Block Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5 Variable Block Size Motion Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.6 Multiple Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.7 Motion Estimation Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.8 Intra Prediction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.9 In-loop Deblocking Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3 Intra-frame transcoding issues : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 13 3.1 Transform Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.1.1 One step kernel conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.1.2 Two step kernel conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.2 Intra-prediction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.2.1 Prediction signal generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2.2 Prediction mode decision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.3 The Proposed Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4 Inter-frame transcoding issues : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 22 4.1 Multiple Reference Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2 Variable Block Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.2.1 Top-Down Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.2.2 Bottom-Up Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.2.3 Merge and Split Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.3 The Proposed Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 5 Conclusion and future work : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 30 5.1 Experiment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5.2 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 5.3 Future Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 References : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 52 | |
| dc.language.iso | en | |
| dc.subject | 轉碼器 | zh_TW |
| dc.subject | 轉換域 | zh_TW |
| dc.subject | MPEG-2 | zh_TW |
| dc.subject | H.264 | zh_TW |
| dc.subject | AVC | zh_TW |
| dc.subject | hybrid-domain | en |
| dc.subject | transcoder | en |
| dc.subject | mpeg-2 | en |
| dc.subject | h.264/avc | en |
| dc.title | MPEG-2 到 H.264/AVC 之混合域轉碼器實做 | zh_TW |
| dc.title | An Implementation of Hybrid-Domain MPEG-2 to H.264/AVC Transcoder | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 94-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 童怡新(Yi-Shin Tung),莊玉如(Yuh-Jue Chuang) | |
| dc.subject.keyword | 轉碼器,轉換域,MPEG-2,H.264,AVC, | zh_TW |
| dc.subject.keyword | transcoder,hybrid-domain,mpeg-2,h.264/avc, | en |
| dc.relation.page | 55 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2006-07-30 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 資訊工程學研究所 | zh_TW |
| 顯示於系所單位： | 資訊工程學系 | |
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