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JPEG-2000 and MXF Solutions for Video & Image Archives MEDIA TM MATTERS JTS 2007 Toronto
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Outline Challenges for ArchivesChallenges for Archives Sizes and bit ratesSizes and bit rates Compare alternative solutionsCompare alternative solutions Performance and efficiencyPerformance and efficiency Storage and networking costsStorage and networking costs WorkflowWorkflow Hardware and softwareHardware and software ConclusionsConclusions MEDIA TM MATTERS JTS 2007 Toronto
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Challenges - what archives need to do maintain and manage content forevermaintain and manage content forever - copy to A\Vanalog tape? - copy to A\Vanalog tape? - copy to digital A\V tape? - copy to digital A\V tape? - convert to data|metadata? - convert to data|metadata? QC, condition-reporting, authentication, securityQC, condition-reporting, authentication, security search, retrieve, access, exhibit, publishsearch, retrieve, access, exhibit, publish MEDIA TM MATTERS JTS 2007 Toronto
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Workflow Real-time ingest with metadataReal-time ingest with metadata Fast transfer compressed files over networksFast transfer compressed files over networks I-frame, accuracy of editingI-frame, accuracy of editing –Low computational requirement –No transcoding of B or P frames Efficient migation without loss Efficient migation without loss MEDIA TM MATTERS JTS 2007 Toronto
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Screen Size Screen Size MEDIA TM MATTERS 4k = 35mm film 2k = 16 mm film WXGA 1920 x 1080i High-Definition HD 720p StandardDefinition VGA, SVGA QuarterScreenThumbnail JTS 2007 Toronto
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File Size and Bit Rates JTS 2007 Toronto MEDIA TM MATTERS
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Average bit rates JTS 2007 Toronto Baseband JP2k MP2 MEDIA TM MATTERS
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Serial Digital Interface JTS 2007 Toronto MEDIA TM MATTERS
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Storage Costs JTS 2007 Toronto MEDIA TM MATTERS
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JPEG-2000 Reversible or losslessReversible or lossless –constant quality, not constant bit-rate; file sizes vary ISO standardISO standard Wide range of supportWide range of support Performance and efficiencyPerformance and efficiency Lower storage and networking costsLower storage and networking costs MEDIA TM MATTERS JTS 2007 Toronto
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JPEG-2000 File Formats.bin raw image data.bin raw image data.j2k, jp2 JPEG-2000.j2k, jp2 JPEG-2000.jpx metadata.jpx metadata.idx index file.idx index file.mj2 ISOIEC 15444-3:2002.mj2 ISOIEC 15444-3:2002 –now ISO/IEC 15444-12 base format, common to MPEG-4 ISO/IEC 14496-12 general format for timed media data sequences, –same underlying architecture as Quicktime TM..mxfMaterial eXchange Format.mxfMaterial eXchange Format MEDIA TM MATTERS JTS 2007 Toronto
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Graphics Accelerator Hardware JTS 2007 Toronto MEDIA TM MATTERS up to six levels of 9/7 and 5/3 wavelet transformsup to six levels of 9/7 and 5/3 wavelet transforms maximum tile height 4096 pixels using 5/3 waveletmaximum tile height 4096 pixels using 5/3 wavelet tile widths up to 2048 pixels in 4:2:2 modetile widths up to 2048 pixels in 4:2:2 mode up to 4096 pixels in single-component modeup to 4096 pixels in single-component mode 9/7 wavelet, height and width are halved9/7 wavelet, height and width are halved improved video decoder and deserializerimproved video decoder and deserializer high performance clock, improved data recoveryhigh performance clock, improved data recovery better data retiming with automatic rate selectionbetter data retiming with automatic rate selection automatic cable eqautomatic cable eq lower noiselower noise
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JPEG-2000 + MXF Video Encoding Station JTS 2007 Toronto MEDIA TM MATTERS
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System Integration JTS 2007 Toronto MEDIA TM MATTERS
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File Sizes and Bit-Rates U-matic to 8-Bit Motion JPEG-2000 Bit Rate ≈ 37 - 43 Mb/s ≈ 16 – 19 GB/hr JTS 2007 Toronto MEDIA TM MATTERS
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JPEG-2000 less applicable for: very low bit-ratesvery low bit-rates DV or MPEG/IMX DV or MPEG/IMX – already compressed most HD – DV100, HDCAMmost HD – DV100, HDCAM – already compressed MEDIA TM MATTERS JTS 2007 Toronto
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Conclusions Reversible MJPEG-2000 can maintain images without degradationReversible MJPEG-2000 can maintain images without degradation – MPEG, DV, Betacam and JPEG cannot JP2k = significant reduction in file sizes, storage costs and data transmission loadJP2k = significant reduction in file sizes, storage costs and data transmission load MXF is an excellent wrapper for metadataMXF is an excellent wrapper for metadata Real-time hardware and softare availableReal-time hardware and softare available Increasing support and compatibilityIncreasing support and compatibility JTS 2007 Toronto MEDIA TM MATTERS
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