• The macroblock is a processing unit in image and video compression formats based on linear block transforms, typically the discrete cosine transform (DCT)...
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  • macroblocks P-frames can contain both intra macroblocks and predicted macroblocks B-frames can contain intra, predicted, and bi-predicted macroblocks...
    9 KB (1,258 words) - 22:00, 4 November 2024
  • Thumbnail for Advanced Video Coding
    including: Macroblock-adaptive frame-field (MBAFF) coding, using a macroblock pair structure for pictures coded as frames, allowing 16×16 macroblocks in field...
    89 KB (9,778 words) - 10:10, 17 October 2024
  • MPEG-1 (section Macroblocks)
    was the motion-compensated DCT hybrid video coding structure. It uses macroblocks of size 16×16 with block-based motion estimation in the encoder and motion...
    90 KB (10,881 words) - 23:14, 26 August 2024
  • Flexible Macroblock Ordering or FMO is one of several error resilience tools defined in the Baseline profile of the H.264/MPEG-4 AVC video compression...
    8 KB (1,141 words) - 13:47, 19 August 2023
  • DVD for each macroblock being compressed. Sometimes no suitable match is found. Then, the macroblock is treated like an I-frame macroblock. MPEG-2 video...
    23 KB (2,572 words) - 14:56, 1 June 2024
  • Thumbnail for Block-matching algorithm
    A Block Matching Algorithm is a way of locating matching macroblocks in a sequence of digital video frames for the purposes of motion estimation. The...
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  • blocks are grouped into macroblocks of 16 × 16 samples, and the 16 DC coefficients from the 4 × 4 blocks of each macroblock are passed through another...
    38 KB (3,809 words) - 13:47, 22 September 2024
  • Thumbnail for Motion estimation
    Each motion vector is used to represent a macroblock in a picture based on the position of this macroblock (or a similar one) in another picture, called...
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  • Thumbnail for Compression artifact
    prediction block boundaries, or both, and may coincide with macroblock boundaries. The term macroblocking is commonly used regardless of the artifact's cause...
    22 KB (2,329 words) - 10:50, 7 July 2024
  • prediction performance by smoothing the sharp edges which can form between macroblocks when block coding techniques are used. The filter aims to improve the...
    4 KB (536 words) - 03:25, 31 July 2024
  • com/uploads/files/RPE-MACROBLOCK-2.7L-V8-TECHNICAL-DATA.pdf [bare URL PDF] http://www.radicalperformanceengines.com/engines/Powertec-Macroblock-v8 [dead link]...
    4 KB (340 words) - 11:30, 1 April 2022
  • compression rates. An inter coded frame is divided into blocks known as macroblocks. After that, instead of directly encoding the raw pixel values for each...
    12 KB (1,670 words) - 22:13, 8 September 2024
  • Thumbnail for PlayStation technical specifications
    device mode is to read three RLE-encoded 16×16 macroblocks, run IDCT and assemble a single 16×16 RGB macroblock. Output data may be transferred directly to...
    11 KB (1,034 words) - 20:31, 6 October 2024
  • Thumbnail for JPEG
    transmission over an unreliable network or file corruption. Since the runs of macroblocks between restart markers may be independently decoded, these runs may...
    106 KB (13,325 words) - 19:19, 4 November 2024
  • restructuring the ordering of the representation of the fundamental regions (macroblocks) in pictures. This type of algorithm avoids the need to wait for a full...
    7 KB (1,076 words) - 15:59, 13 October 2021
  • vector Two dimensional vector offset from current position to reference frame Picture A field or frame Skipped macroblock No data is encoded for macroblock...
    7 KB (238 words) - 16:21, 12 February 2024
  • the design is called a macroblock, and H.261 was the first standard in which the macroblock concept appeared. Each macroblock consists of a 16×16 array...
    11 KB (1,330 words) - 14:52, 1 June 2024
  • choose among more than one previously decoded frame on which to base each macroblock in the next frame. While the best frame for this purpose is usually the...
    3 KB (425 words) - 17:24, 30 October 2024
  • Coding (HEVC) video standard and conceptually corresponds in structure to macroblock units that were used in several previous video standards. CTU is also...
    11 KB (1,116 words) - 04:05, 6 July 2024
  • transform Yes Yes Yes Overlapped transform Yes Yes Yes 4 motion vector per macroblock Yes Yes Yes 1⁄4 pixel luminance motion compensation Yes Yes Yes 1⁄4 pixel...
    19 KB (1,872 words) - 05:17, 31 July 2024
  • Thumbnail for Emotion Engine
    unit registers: 128-bit wide, 32 entries Image processing unit: MPEG2 macroblock layer decoder Direct memory access: 10 channels VDD Voltage: 1.8 V Power...
    16 KB (1,990 words) - 10:53, 19 October 2024
  • Thumbnail for X265
    control. Visual quality algorithms include CU-Tree (the successor to x264's macroblock-tree), adaptive quantization, b-pyramid, weighted prediction and psycho-visual...
    11 KB (947 words) - 06:54, 20 October 2024
  • D1 NTSC (720×480) D1 PAL (720×576) 6 3,968 12,000 0.33 3,600 108,000 720p (1280x720) Units kbits kbits/s seconds bits macroblocks macroblocks/s pixels...
    20 KB (1,412 words) - 11:51, 11 June 2024
  • Thumbnail for Display resolution standards
    multiple of 16, which is a common macroblock size for video codecs. Video frames encoded with 16 × 16 pixel macroblocks would be padded to 640 × 368 and...
    144 KB (14,131 words) - 16:54, 1 November 2024
  • Parameters Description Macroblock type Prediction method for each coded macroblock Coded block pattern Indicates which blocks within a macroblock contain coded...
    5 KB (420 words) - 18:35, 12 April 2024
  • Thumbnail for Common Intermediate Format
    in H.261, using 16 × 16 macroblocks and 8 × 8 transform blocks. So a CIF-size image (352 × 288) contains 22 × 18 macroblocks and a QCIF image (176 × 144)...
    6 KB (819 words) - 16:29, 29 October 2024
  • Thumbnail for VHS
    artifacts: MPEG-2 video compression can result in visible artifacts such as macroblocking, mosquito noise and ringing which become accentuated in extended recording...
    96 KB (11,157 words) - 09:45, 2 November 2024
  • optimization (SSD) and sum of absolute transformed differences (SATD). Macroblock-tree rate control, which controls the quality by tracking how often parts...
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  • and H.265/HEVC video coding standards. He is co-inventor of flexible macroblock ordering (FMO) and tiles, essential features in H.264/MPEG-4 AVC and H...
    4 KB (460 words) - 05:01, 3 January 2024