TI-内部培训资料Netra-HD-VPSS-Overview课件.ppt

1、TI Proprietary InformationNetra HD-VPSS Architecture OverviewTI Proprietary InformationVideo Processing is Increasingly ImportantTransition from small monitor to bigger monitor w/ higher resolutionBigger monitors tend to amplify noise/artifacts, making them more noticeablePictures tend to look blurr

2、ed at higher resolution Transition from analog to digitalCompression introduces artifacts (ringing or mosquito artifacts, blocking artifacts, blurring)Compression artifacts are more objectionable than analog noise to human eyesTransition from CRT monitor to LCD/Plasma/DLP TVLCD/Plasma/DLP TVs suppor

3、t progressive-scan picturesWider Gamut enabling more color to display“Sample and hold” time of LCD is much longer than CRT monitor leading to motion blurTI Proprietary InformationTwo Functionalities of Video ProcessingFormat conversion (to match the input picture format to the required output format

4、): Interlaced-scan to progressive-scan (de-interlacing)Picture resizing (including aspect ratio change)Color space conversion Frame rate conversionImage quality enhancement:Less noiseLess artifactsSharper in spatial domainSharper in temporal domain (less motion blur)Better contrastMore natural/vivid

5、/saturated colorTI Proprietary InformationOptimal Flexible Video Processing SubsystemVideo Display Processing Video Display Processing Multiple Video Output Format support Graphics Processing Compositor/Alpha Blending Video Input Processing Multiple Video Input Support Video Input Noise FilteringEnc

6、oding & Transcoding Support Video Data Processing (Noise filtering, De-interlacing, Scaling, Color Space Conversion)(memory ext vid output) (external vid src memory) (memory memory) Netra integrates high video display processing IP in a flexible mannerOptimize for both in-line data flow for capture

7、or display and memory-to-memory optionTI Proprietary InformationHD-VPSS VIDEO PROCESSING SUBSYSTEM BLOCK DIAGRAM Display Process SubsystemVideoBackendDEI HQ PipeHigh Quality DP EngineCOMPAlphaBlender -HDAlphaBlender -SDvpDMAOCPDevice I/OsMisc Data Processor (VBI data proc)AudioOCP (MMR Interface)NTS

8、C/PALEncoderDEI PipeLow Cost DP EngineGraphics Pipe - 1w/ scalerHDMITXSDvideoDACsR/FModDACDevice I/OsVideo Input Pipe -2Video Input Pipe - 1NTSCR/F ModVideo Noise Reduction FilterGraphics Pipe - 2w/ scalerGraphics Pipe - 3w/ scalerHDEncoderHDEncoderHDcompDACsAlphaBlender -HDTI Proprietary Informatio

9、nNetra HD-VPSS Key Features (Record)Glueless multi-channel capture with TVP5158 supports 16+channel D1, 32-ch CIF real time recordingSupports BT.656, 1120, and Line ModeRecord Resolutions: Fully adjustable with scaler/deinterlacerProgrammable Frame Rates: 1 to 60 fps (after de-interlacing)Flexible R

10、ecord Output Functionsinternal connections between HD-VPSS, DRAM, and HD-VICPs allow complete flexibilityTI Proprietary InformationNetra HD-VPSS Key Features (Multi-Channel Playback/Display)Displays at least 20 D1 channels: 16 live + 4 decode. May be possible to decode and display more w/ system tra

11、deoffIntegrated 3D Graphics Processor for Creating Graphics Overlay WindowsSupports triple monitors: 1x HD, 1x HD/SD, 1x SDMain Display (up to HD 1080p30)HDMI, Analog RGB, Digital RGB, Digital YUV, S-Video and CVBS supportedBuilt in scaler, HQ deinterlacer4-layer Graphic Overlay w/ Triple 32b RGB OS

12、G (pr up to 8-bit bitmap)Secondary Display(s)HDMI, Analog RGB, Digital RGB, Digital YUV, S-Video and CVBS supportedSame overlay as mainSPOT DisplaySupported by Netra HD DAC outputsTI Proprietary Information COMPY422VCOMPY422Y444EDEY444VPDMAHD-vidHD-vid(CIT)Comp/AlphaBlendBUFSyncHDMITXHDDACs(3)DVO-1Y

13、444CPROCR444422 to 444Comp/AlphaBlendBUFHD_VENC_DHD_VENC_AR444 R444CIGAR444 AR444 AR444SyncDEI_H PipeY420CHR_USY422Y422SCY422DRNY422DEIY422decompcompVideo Processing Pipeline Details VPDMA (DMA control and Buffering) YCbCr 420 or 422 (8-bit tiled data) Tiled to Raster conversion Configuration Downlo

14、ads Video Mosaic supportCHR_US (Chroma Upsampler) 420 to 422 Chroma upsampler DRN (MPEG Noise Reduction) Ringing Artifact ReductionDEI (Deinterlacer) Motion-adaptive 3D Noise Reduction (3DNR) Support 4-field and 5-field Motion Detection (MDT) Edge-Directed Interpolation (EDI) Film Mode Detection (FM

15、D) Bad Edit Detection (BED) COMP/DECOMP (bw-saving compression) 2x compression of private data storageSC (Scaler) Up/Down Scaling Non-linear scaling on edges Input trimmer for input clipping (pan/scan) Edge directed Vertical scaling 7-tap/64-phase polyphase filter Running Average Scaler for vertical

16、 downscaling TI Proprietary Information COMPY422VCOMPY422Y444EDEY444VPDMAHD-vidHD-vid(CIT)Comp/AlphaBlendBUFSyncHDMITXHDDACs(3)DVO-1Y444CPROCR444422 to 444Comp/AlphaBlendBUFHD_VENC_DHD_VENC_AR444 R444CIGAR444 AR444 AR444SyncDEI_H PipeY420CHR_USY422Y422SCY422DRNY422DEIY422decompcompVideo Processing P

17、ipeline DetailsEDE (Edge Detail Enhancement) LTI/CTI (Luminance/Chrominance Transition Improvement) sharper edge and cleaner color transition Horizontal Peaking block (sharper edge)CIG (Constrained Image Generator) Constrained image (lowered resolution) on the analog outputVCOMP (Video Compositor) V

18、ideo only compositor Main + PIPCPROC (Color Processing) Dynamic contrast enhancement (GCA) Saturation enhancement (Green boost) Color space conversion (YCbCr RGB)COMP (Compositor Alpha Blending) 2 Video and 3 Graphics source blendingVENC (Video Encoders) HDMI or DVO-1 HDCOMP SD DVO-2TI Proprietary I

19、nformationDe-ringingInput ProcessedTI Proprietary InformationDE-INTERLACER (I2P) KEY FEATURES Motion Adaptive DeinterlacingSupports 4-field and 5-field motion detection: trade-off between quality and bandwidthEmploys temporal IIR filtering to handle Fast Motion and Oscillating MotionMotion sensitivi

20、ty adaptive to the frequency of luma textureTemporal/Spatial Noise ReductionMotion/edge/texture Adaptive Allows NR for both luma and chromaEdge and detail preserving and ghosting preventionHierarchical Edge Adaptive InterpolationWide range edge detection (covers 2X17 window)High resolution sub-pixel

21、 edge vectors Edge-directed luma and chroma interpolationFilm Mode Detection3-2 pull down detection2-2 pull down detectionBad edit detection Support for additional cadence can be added with software (such as Cartoon 12 frame/sec sources)TI Proprietary InformationDEI: Advanced Motion DetectionCompeti

22、tors TIs solutionTI Proprietary InformationDEI: Advanced Motion DetectionCompetitors TIs solutionTI Proprietary InformationDEI: Low-Angle Edge InterpolationCompetitors TIs solutionTI Proprietary InformationDEI: Low-Angle Edge InterpolationCompetitors TIs solutionTI Proprietary InformationDEI: Low-An

23、gle Edge InterpolationCompetitors TIs solutionTI Proprietary InformationDEI: Low-Angle Edge InterpolationCompetitors TIs solutionTI Proprietary InformationDEI: Film Mode DetectionW/o film mode detection TIs solutionTI Proprietary InformationW/o correct bad edit detection TIs solutionDEI: Bad-Edit De

24、tectionTI Proprietary InformationSCALAR (RESIZER) KEY FEATURES Programmable Arbitrary Up-Scaling and Down-ScalingSupports all ATSC and user-defined source and display resolutions up to 1080pScales in both horizontal and vertical directions independently10-bit 4:4:4 datapathFine scaling ration contro

25、lEdge Adaptive ScalingHigh resolution edge detection7-tap 32-phase programmable polyphase filter for horizontal scaling5-tap 32-phase programmable polyphase filter for vertical scalingTwo-stage decimation filter to reduce aliasing for downscalingEdge-preserving scaling by interpolating along the edg

26、esNon-Linear ScalingSupports panorama (stretching on both sides of screen)Pan and ScanSupports up to 1/16 pixel accuracy in both directionsTI Proprietary InformationPICTURE IMPROVEMENT KEY FEATURES EDE2D LTI (Luma Transient Improvement), CTI (Chroma Transient Improvement) to enhance edgesLuma and ch

27、roma alignment to achieve better registration and definition2D peaking to enhance detailsNoise robustness. Clipping and contouring preventionCIECAM02 Based CPROCUsing state-of-the-art CIECAM02 color models (Jhs color space)Perceptually uniform and orthogonalAdapting systematically to viewing and dis

28、play conditions (ambient lights, white point, etc.)Working well with wide-gamut displayStandard TV controls: brightness, contrast and saturation controlsHistogram-based dynamic contrast processingMemory color enhancement (green/blue boost, skin tone correction)Vivid and natural colorsTI Proprietary

29、InformationEdge and Detail EnhancementInput ProcessedTI Proprietary InformationCOLOR SATURATION PROCESSING WITH MEMORY COLORSInput ProcessedTI Proprietary InformationMotion-Adaptive 3D Noise ReductionInput w/ Gaussian noise ProcessedTI Proprietary InformationImpulse Noise ReductionInput w/ impulse n

30、oise (10%, 0 255) Processed PSRN=36.4dBTI Proprietary InformationCOMPRESSION IMPROVEMENT WITHVIDEO NOISE FILTERINGTI Proprietary InformationHD-VPSS Multi-channel Security DVR Data Flow ExampleTI Proprietary InformationEXAMPLE HYBRID SECURITY DVR DATA FLOWTI Proprietary InformationDSS DATAFLOW WITH NOISE FILTERING AND D1+CIF ENCODINGDDRVIP ParserCSCScalarCHR DSCHR DSCHR DSNFDMACHR USDRNDEIScalarCOMPBLENDHD OutGraphicsComp/DecompIVA HD(3)D1 Encode(30 fps)CIF Encode(15 fps)D1 Decode(30 fps)4 x 2 D1Alternate CIF and D1 frames (30fps each)