完整後設資料紀錄
DC 欄位語言
dc.contributor.authorShih-Hao Wangen_US
dc.contributor.authorWei-Lin Chenen_US
dc.contributor.authorTihao Chiangen_US
dc.date.accessioned2014-12-08T15:13:25Z-
dc.date.available2014-12-08T15:13:25Z-
dc.date.issued2007-09-01en_US
dc.identifier.issn0253-3839en_US
dc.identifier.urihttp://hdl.handle.net/11536/10377-
dc.description.abstractThe need for interoperability poses a challenge with the widespread use of multiple video formats. A Multi Layer Streaming-Simplified DCT Domain Transcoder (MLS-SDDT) is proposed to achieve efficient transcoding and video quality improvement. However, an efficient architecture is needed to handle drifting errors. The MLS-SDDT algorithm addresses these issues by proposing: (1) an FGS compatible Simplified DCT Domain Transcoder (FGS-SDDT) architecture for MPEG-1/2/4 single layer transcoding, and (2) an R-D optimized multi-layer streaming technique for video quality improvement. To support efficient transcoding from FGS to MPEG-1/2/4, the FGS-SDDT adopts low complexity Simplified DCT Domain Transcoder (SDDT) architecture as an FGS compatible SDDT. To resolve the serious error-drifting problem from SDDT, especially for heterogeneous transcoding, a mathematical analysis of the error-drifting problem is provided and a solution by multi-layer streaming is adopted. The multi-layer streaming approach pre-computes the errors according to the mathematical analysis and encodes the errors as the second enhancement layer for error compensation. For different network conditions, an R-D optimized model is used to improve the bit allocation in the two enhancement layers for better R-D performance. Our experiments show that the MLS-SDDT can deliver 1.4 similar to 7.0 dB PSNR improvement for MPEG-1 and 1.9 similar to 8.6 dB improvement for MPEG-2 as compared to the SDDT. For FGS to MPEG-4 single layer transcoding, the MLS-SDDT can achieve minor PSNR loss (0.0 similar to 0.4 dB) with lower computational complexity as compared to the SDDT approach.en_US
dc.language.isoen_USen_US
dc.subjecttranscodingen_US
dc.subjectMPEG-4 FGSen_US
dc.subjectMPEG-1/2/4en_US
dc.subjectmulti-layer streamingen_US
dc.subjectR-D optimizationen_US
dc.titleAn efficient FGS to MPEG-1/2/4 single layer transcoder with R-D optimized multi-layer streaming technique for video quality improvementen_US
dc.typeArticleen_US
dc.identifier.journalJOURNAL OF THE CHINESE INSTITUTE OF ENGINEERSen_US
dc.citation.volume30en_US
dc.citation.issue6en_US
dc.citation.spage1059en_US
dc.citation.epage1070en_US
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000250022900011-
dc.citation.woscount0-
顯示於類別:期刊論文


文件中的檔案:

  1. 000250022900011.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。