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HDTV Bildcodierung für DVD9

HDTV Bildcodierung für DVD9. Dr. Jan H. Giesen CoC Video Compression Systems Philips Semiconductors Hamburg 13. Juni 2003. Extended DVD Specification. DVD-Forum is working on an extended DVD Specification („DVD V2.0“)

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HDTV Bildcodierung für DVD9

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  1. HDTV Bildcodierung für DVD9 Dr. Jan H. Giesen CoC Video Compression Systems Philips Semiconductors Hamburg 13. Juni 2003

  2. Extended DVD Specification • DVD-Forum is working on an extended DVD Specification („DVD V2.0“) • Enhanced DVD is based on current DVD-ROM physical specification: Red Laser • Larger Data Transfer Rate • Main Feature: Support of HDTV Resolution • Proposed: Enh. Audio Coding Schemes:DD+, DTS+

  3. Competing Disc Standards • Blue Ray Disc (“BD”) • 9c : Hitachi, LG, Matsushita, Pioneer, Philips, Samsung, Sharp, Sony, Thompson • 405 nm blue-violett Laser, N.A.: 0.85, Track pitch 0.32 um, 0.1 mm optical layer • about 25 GB, 36 Mbit/s transfer rate • HDTV Streamer application format defined • Advanced Optical Disc • Toshiba

  4. DVD Video Object Transfer Rates

  5. HDTV Resolution for 1125/60 System Support for Frame Rate 24 fr/s under discussion => Automatic 3:2 Pull-down

  6. HDTV Resolution for 1250/50 System

  7. HD/DVD9 proposals (7Mb/s) • MPEG2 • Mitsubishi • H.264 ( = AVC, MPEG4 ISO/IEC 14496 -10,) • Apple, Pioneer, Sand Video, Toshiba • MPEG4 ASP • DIVx, iVAST, JVC • WMV9 • MicroSoft - DemoGrafx • DVD compatible: SD MPEG2 + HD H.264 • Philips, Thomson

  8. Video Format: MPEG4 AVC • Proposed by Toshiba • Main Profile, Level 4.I: • I + P picture types, In-loop deblocking,1/4 sample motion compensation, VLC-based entropy coding, Tree-structured motion segmentation down to 4x4 block size, 4:2:0 • Bi-predictive slices, CABAC, Weighted prediction, Adaptive block-size transforms • Interlace pictures, frame/field adaptive at picture and macroblock level

  9. Video Format: MPEG4 AVC • Restrictions to Level Limits: • Max bitrate: 29.4Mbps instread of 50Mbps • CPB buffer size: 30Mbits instead of 62.5Mbits • Prediction (GOVU) structure. • AVC encapsulation into MPEG2 PS: • Encapsulation as MPEG video stream • STREAM_ID: 0xE1(DVD MPEG2 Video Stream ID: 0xE0)

  10. Video Format: WMV9 • Proposed by Microsoft • WMV9 encapsulation into MPEG2 PS: • Extended STREAM_ID: 0xFD as defined in ISO/IEC 13818-1:2000/FPDAM • Stream ID Extension field in PES Header • Not compatible to existing mechanism to encapsulate “private” streams in DVD VOBs

  11. HD/DVD9 Comparison (7Mb/s) Very Good Good for HD movies sales Marginal MP2 WMV9 MP4ASP MP2 H264 MP2+H264 Red: noise prefilter used + postproc Black: no prefilter or postproc

  12. Philips internal Viewer Ratings • Quality Rating (720p): HD : 10 Original MPEG2-20 : 9.8 20 Mbit/s HDonDVD9 : 9.4 7 Mbit/s dual layer SD-up : 7 from 7 Mbit/s SD upscale & pixel + sharpness processing

  13. Blue Ray Viewing Session • Februar 2003 • Non-Blind Test… • “OK” means the picture quality is good enough for HD package media • “NG” means the picture quality is not sufficient enough for HD package media • Rating structure: OK / NG / no opinion

  14. Reference 7Mbps 12Mbps 15Mbps 20Mbps 24Mbps Clip Erin Brockovich ① Original ③ MPEG-4 AVC ④ MPEG-4 AVC ⑥ MPEG-4 AVC ⑧ MPEG-4 AVC ⑩ MPEG-4 AVC 2/11/0 3/9/1 5/7/1 7/6/0 9/4/0 ② D-VHS emulation N/A ⑤ MPEG-2 ⑦ MPEG-2 ⑨ MPEG-2 8/4/1 ⑪ MPEG-2 2/12/0 2/11/0 11/0/0 11/0/0 ① Original Dick Tracy ③ MPEG-4 AVC ④ MPEG-4 AVC ⑥ MPEG-4 AVC ⑧ MPEG-4 AVC ⑩ MPEG-4 AVC 3/10/0 3/9/1 7/6/0 11/2/0 12/0/0 ② D-VHS emulation ⑤ MPEG-2 ⑦ MPEG-2 ⑨ MPEG-2 ⑪ MPEG-2 N/A 6/7/0 8/4/1 12/1/0 12/0/0 11/0/0 Stuart Little 2 ① Original ③ MPEG-4 AVC ④ MPEG-4 AVC ⑥ MPEG-4 AVC ⑧ MPEG-4 AVC N/A 5/6/2 8/5/0 12/1/0 3/10/0 N/A ⑤ MPEG-2 ⑦ MPEG-2 ⑨ MPEG-2 ⑩ MPEG-2 ② D-VHS emulation 11/0/0 5/7/1 8/5/0 13/0/0 12/0/0

  15. Conclusions • HD movies on DVD9 @ 7-10Mbs is feasible with good Quality • Also feasible in DVD backwards compatible way using dual layer MP2/AVC or even MP2/MP2. • Picture quality @ DVD9 bitrates (all codecs) is NOT seen as sufficient by Studios. • Currently only MPEG2 @ 20-24Mbs is seen as sufficient by Studios  more interest in Blue Laser Disc Formats than in HD on DVD9

  16. Philips Semiconductors Philips Semiconductor GmbH CoC Video Compression Systems Stresemannallee 101 22529 Hamburg, Germany Dr. Jan Giesen Manager Systemdesign Tel. : ++ 49 / 40 / 5613 - 3327 Fax. : ++ 49 / 40 / 5613 - 3525 Email : jan.giesen@philips.com Contact

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