4 2 2 Profile Main Level Pages 192 196 b 4 MPEG 2 4 2 2 Profil Main Level Prof sionalstudio p ost production environment s generation chroma keying using compressed video s 4 2 0 format Higher bit 2 O and 4 2 2 formats Good environments V x robust insparent or near transpar6nt in chroma Level Compatibility No scalability ess which uses a switching signal to blend 4 btra dc coefficient precision up to 11 bits e S B P l s e p Intrastuciiol e t C P Long GOP structure Interstudio E BP N 15 M 3 or N 12 M 3 2 luminance and chrominance quantization tables Upper bounds for spatiaVtempora1resolutions 720 pelslline 608 linedfiame 4 at 50 HZ and 720 pels line 512 lines fiame at 60 HZ Max VBV Buffer size 9437184 bits FrameEield DCT FrameEield MEJMC L n 5 e w a m 8 h 2 i P 3 References Video Sub group and Requirements Sub group 4 2 2 MPEG 2 profile proposal Programme of work in Int Organization for Standardization Singapore Nov 1994 ISO IEC JTC llSC291WG11 N0858 ISO IEC 13818 2 Amendment 2 Generic Coding of Moving Pictures and Associated Audio International Organization for Standardization Jan 1996 C Horne et al Multigeneration experiments using 4 2 2 profile in Int Organization for Standardization Lausanne Switzerland Mar 1995 ISOIEC JTCllSC29IWGll MPEG951032 T Naveen et al On improving the efficiency of VLC s for 4 2 2 MPEG 2 profile in Int Organization for Standardization Lausanne Switzerland Mar 1995 ISOIEC JTC l SC29 WG11 MPEG951063 T Naveen et al SPIE Photonics East Vol CR 60 pp 288 308 Philadelphia PA Oct 1995 C Horne et al Study of the characteristics of the MPEG 2 4 2 2 profile Application of MPEG 2 in studio environment v 1 6 pp 251 272 June1996 T A M S C S rg Multi View Profile Pages 197 213 ISO IEC 13818 2 Amendment 3 VIDEO MPEG2 Document N1366 Sept 1996 Also ITU TRec H 262 1995 IAMD3 1996E AMD Amendment Multi View Profile MVP Supports stereoscopic pictures for a wide range of picture quality resolution Depth Perception Base layer Left View Enhancement layer Right View Base layer Monoscopic coding with the same tools as Main Profile Enhancement layer coded using temporal scalability tools and a hybrid prediction of motions and disparity PROFILE LEVEL Main Low 2 3 Ti 4 5 X Chen and A Luthra MPEG 2 multiview Profile and its application in 3D TV SPIE IS T Elect onicImaging Science and Technology vol 3021 San Jose CA Feb 97 Con 302 1A Stereoscopic displays and Applications VIII SPIEIIS T San Jose CA Feb 97 Session on c Stereoscopic Processing Analysis SPIE IS T vol 3024 San Jose CA Feb 97 A Puri Video Coding Using the MPEG 2 Compression Standard Proceedings of SPIE Visual Communications and Image Processing pp 1701 1713 Boston MA Nov 1993 A mui R V Kollarits and B G Haskell Stereoscopic video compression using temporal scalability SPIEIVCIP vol 2501 pp 745 756 Taiwan Taipei May 1995 La 3D Video constructed from two views of 2D video from different perspectives Autostereoscopic system Two views hsed in the brain to provide perception of depth length Left Camera Right Camera 1 a Figure 1 Stmoscop cimaging and Display geometries Viewer Scene Right Canera Stereoscopic Encoder Stereoscopic 3 Decoder Left Camera Figure 4 A Stenoscopic video system 1 I C gjg 8GA nL 3 t 8 r t I a I h i I fl Dis aritvCom ensatedPrediction Configuration 1 e m ocoincidence rd between the left view and right view Enhancement Layer Base Layer fl P y fl Y p I Left t Fig 5 prediction configuration 1 with M 3 coding of left view right view fiame picture coded using dispaity predictions with respect to left view Dis aritvand motion compensated prediction configuration 2 Enhancement Layer Right View 0 J 8 A I Left View W A WAWAW I I I Fig 6 Prediction configuration 2 with M 3 coding of left view right view fiame picture coded using disparity prediction with respect to left view and motion prediciton with respect to itself Tem oralScalability in bi directional prediction configuration 1 Enhffncement layer B pictures only forward backward bi directional MCP Right View Left View 5 Fig 2 Prediction configuration 1 with M 3 fiame picture coding of baseIayer using frame picture both predictions fiom base layer Configuration 2 Enhancement layer Mainly B pictures first picture is a P picture forward backward bidirectonal MCP kft View Base layer Fig 3 Prediction configuration 2 with M 3 he picture coding of base Iayer cement layer enhancement layerusing fiame pictures with one prediction fkm enhancement layer end one fiom base layer 1 Motion Disparity Compensated DCT Right View Decoder Compensated DCT Right View Encoder Mux Motion Compensated DCT Left View Encoder SYS Demux Motion Compensated DCT Left View Decoder Fig 4 a A generalized stereoscopic video codec derived from temporal sealability codec structure of Fig 1 Motion and Dispanity Compensated DCT Encoder Motion and Disparity Compensated DCT Decoder Compensated W I DC T Encoder 1 Motion DC T Encoder Fig 4 b Cocks of I ig 4 a revised to show some details of combined disparity and motion compensated prediction Disparity estimation and compensation based on 16x16 Y block Enhancement Decoder Enhancement Encoder Out Enhancement Layer A In SYS Mux Temporal Demux Sys Demux Temporal Demux Lower Encoder I Lower Decoder I1 I I b Lower Layer A Two Layer Codec Structure for temporal Scalability L Disparity Motion R Time Unit I b 1 1 v Disparity Left View b v Right View Stereo disparity fusion methods Motion Time Unit I 1 Disparity prediction by use of mostrecent decoded enhancement picture and 1or mostrecent lower layer picture order Time Most recent decoded enhancement I P B 4 7 Most recent Iower layer picture in display order Iower layer Enhancement Layer Predict Modes for P and B Pictures Upper bounds for bit rates Mbitls Level Profile Simple Main SNR Spatial 80 High all layers 1440 40 middle base layers IS base layer 60 MU 15 15 I5 bothlayers 10 base Low 4 High 100 all layers 80 middle base layer 25 base Iayer 4 2 2 Multi view 130 both layers 80 base layer 60 middle base layer 20 base layer 100 both layers 60 base layer 1o layers 15 middle base layer 4 base layer er 50 25 both layers 15 base layer 4 bothlayers 3 baselayer 8 both layers 4 base layer 4 The base layer of the MVP is assigned to a left and the enhancement layer is assigned to a right view A monoscopic coding with the same tools as Main Profile MP is applied to the base layer The ehancement layer is coded using Temporal Scaiabiiity tools and a hybrid prediction of motion and disparity can be utilized in the
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