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  • - , 3 7 2012 .

    INTERMATIC 2 0 1 2, 6

    - H.264

    2012 . ..

    H.264 , ITU-T

    Video Coding Experts Group (VCEG) ISO / IEC Moving Picture Experts Group (MPEG) Joint Video Team (JVT). MPEG-4 part 10 AVC (Advanced Video Coding). , 10 -, - MPEG-2, MPEG-4 VP8.

    H.264 - , , - , , .

    H.264 . - () () . , H.264 7 : Baseline, Main, Extended, High, High 10, High 4:2:2 High 4:4:4. . - 5 : I, P, B, SI SP - . - . - .

    I . - , .

    P , - . .

    B - P, , B . .

    SP - .

    SI - SP .

    - Intra_4x4, Intra_8x8, Intra_16x16 I_PCM.

    116

  • Intra_4x4 - 44 . .

    Intra_88 - 88 - .

    Intra_1616 1616 , . - .

    H.264/AVC - . , . 1616 . 1.

    . 1. .

    I_PCM

    , - . - . , - , , - .

    H.264 - , , .

    Intra , . Intra_4x4 Intra_8x8 9 - :

    0 , 1 , 2 (DC) , 3 , 4 , 5 , 6 , 7 , 8 . Intra_4x4 . 2.

    Intra_8x8 .

    117

  • 0 -

    -

    1 - -

    2 - (DC) -

    3 -

    4 -

    - -

    5 - -

    6 - -

    7 -

    8 -

    . 2. .

    Intra_16x16 4 : 0 , 1 , 2 (DC) , 3 . , E-H,

    , , , , - , D.

    Intra_16x16 - Intra_4x4, , - 16 . .

    , - .

    , H.264 - - . ,

    118

  • - . , - - - . - , , .

    , P , - , . B , . , 7 - H.264 Baseline B .

    - 1616 . 816, 168, 88 . . 3.

    . 3. 1616 .

    , ,

    88 , : 48, 84, 44. - . 4. - , 88.

    . 4. 88 .

    -

    , . - , - . , , , 1616, 168, 816

    119

  • , -. , -. , . , -.

    - . - , -. , - 168 , 84, 84 42.

    - . , , . - ( ), , , - , -. . - .

    . 5 a-k n-r. , b h, b1 h1, , :

    b1 = (E 5F + 20G + 20H 5I + J). h1 = (A 5C + 10G + 20M -5R + T).

    . 5. .

    120

  • b h , , 0..255:

    b = ( b1 + 16 ) >> 5. h = ( h1 + 16 ) >> 5.

    , j, : j1 = cc 5 dd + 20 h1 + 20 m1 5 ee + ff,

    , cc, dd, ee, m1 ff, h1. j j = (j1 + 512) >>10 0 255. j , .

    . - .

    , a, c, d, n, f, I, k q, , :

    a = ( G + b + 1 ) >> 1. , e, g, p r,

    , , :

    e = ( b + h + 1 ) >> 1. , H.264

    . , . , .

    , . - ( ) - .

    1. .., .., .. . // - . -2009. - 5.

    2. ., .. . .: , 2006. 3. . . H.264 MPEG-4 .

    .: , 2005. 4. . CCTV. . -. / . . .: -- , 2006.

    5. .., .., .. . // . / . 1. , 2009.

    121

    /ColorImageDict > /JPEG2000ColorACSImageDict > /JPEG2000ColorImageDict > /AntiAliasGrayImages false /CropGrayImages true /GrayImageMinResolution 300 /GrayImageMinResolutionPolicy /OK /DownsampleGrayImages true /GrayImageDownsampleType /Bicubic /GrayImageResolution 300 /GrayImageDepth -1 /GrayImageMinDownsampleDepth 2 /GrayImageDownsampleThreshold 1.50000 /EncodeGrayImages true /GrayImageFilter /DCTEncode /AutoFilterGrayImages true /GrayImageAutoFilterStrategy /JPEG /GrayACSImageDict > /GrayImageDict > /JPEG2000GrayACSImageDict > /JPEG2000GrayImageDict > /AntiAliasMonoImages false /CropMonoImages true /MonoImageMinResolution 1200 /MonoImageMinResolutionPolicy /OK /DownsampleMonoImages true /MonoImageDownsampleType /Bicubic /MonoImageResolution 1200 /MonoImageDepth -1 /MonoImageDownsampleThreshold 1.50000 /EncodeMonoImages true /MonoImageFilter /CCITTFaxEncode /MonoImageDict > /AllowPSXObjects false /CheckCompliance [ /None ] /PDFX1aCheck false /PDFX3Check false /PDFXCompliantPDFOnly false /PDFXNoTrimBoxError true /PDFXTrimBoxToMediaBoxOffset [ 0.00000 0.00000 0.00000 0.00000 ] /PDFXSetBleedBoxToMediaBox true /PDFXBleedBoxToTrimBoxOffset [ 0.00000 0.00000 0.00000 0.00000 ] /PDFXOutputIntentProfile () /PDFXOutputConditionIdentifier () /PDFXOutputCondition () /PDFXRegistryName () /PDFXTrapped /False

    /CreateJDFFile false /Description > /Namespace [ (Adobe) (Common) (1.0) ] /OtherNamespaces [ > /FormElements false /GenerateStructure false /IncludeBookmarks false /IncludeHyperlinks false /IncludeInteractive false /IncludeLayers false /IncludeProfiles false /MultimediaHandling /UseObjectSettings /Namespace [ (Adobe) (CreativeSuite) (2.0) ] /PDFXOutputIntentProfileSelector /DocumentCMYK /PreserveEditing true /UntaggedCMYKHandling /LeaveUntagged /UntaggedRGBHandling /UseDocumentProfile /UseDocumentBleed false >> ]>> setdistillerparams> setpagedevice

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