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Storage method of predictive element

A predictor and storage device technology, applied in the field of predictive decoding

Inactive Publication Date: 2007-02-14
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Only, the consideration about the capacity of the storage device is not important in the known technology (such as the known patent US Patent No.6,005,622) that mainly completes the decoding program with software (Software). Under the trend of integrating related video encoders / decoders in one hardware unit, it becomes unfeasible to install a storage device with such a large capacity in an on-chip method in the system

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  • Storage method of predictive element
  • Storage method of predictive element
  • Storage method of predictive element

Examples

Experimental program
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Embodiment Construction

[0044] In the predictive decoding method of the present invention, the video data bitstream (video bitstream) includes a plurality of video frames (picture), and each video frame can be a moving picture compression standard MPEG (moving picture expert group, A frame, a top field, or a bottom field defined by the MPEG specification. A video frame can be divided into multiple macro-blocks 52 , and each macro-block 52 with a size of 16*16 pixels can be regarded as a processing unit. see Image 6 , Image 6 It is a spatial configuration diagram of a video frame 50 . The video image 50 includes a plurality of macro-block rows (macro-blockrow) 51, each macro-block row 51 includes a plurality of macro-blocks 52, and each macro-block 52 includes four 8*8 pixel-sized block. Taking a video frame 50 with a size of 720×480 pixels as an example, it includes 30 macroblock rows 51 , and each macroblock row 51 includes 45 macroblocks 52 . also, Image 6 An arrow MR1 is also shown in , w...

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Abstract

A method for storing multiple predictive elements containing a macroblock with a first, second, third and fourth blocks including: (a)generating multiple predictive elements of a first region block according to the first and second adjacent blocks, (b)storing the multiple predictive elements of the first block into the first storage device, (c)generating multiple predictive elements of the second block according to the third adjacent and first blocks, (d)storing the multiple predictive elements of the second block into the first storage device, (e)generating multiple predictive elements of the third block according to the forth adjacent and first block, (f)storing them of the third block into the first and second storage device, (g)generating multiple predictive elements of the fourth block according to the second and third block, and (h)storing them the fourth block into the first and second storage device.

Description

[0001] This application is a divisional application of the application filed on August 18, 2003 with the application number 03154547.5 and the title of the invention "Predictive Image Decoding Method Using Memory Access". technical field [0002] The present invention relates to a predictive decoding method using memory access, in particular to a method for using at least one storage device to access multiple predictors in a video frame and reducing the usage of the storage device. Background technique [0003] In 1988, MPEG (Motion Picture Experts Group, animation expert group) was established. MPEG is a working group of ISO (International Standards Organization). This working group has established and promoted some standard compression formats for digital video and audio. These compression formats are now widely used in the production of digital content products around the world. Since its establishment in 1988, MPEG has announced several important standards. Among the au...

Claims

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Application Information

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IPC IPC(8): H04N7/32H04N19/50
Inventor 郭惠华林恭生
Owner MEDIATEK INC