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Method and apparatus for predicting motion

A motion and device technology that is applied in the field of predictive motion and can solve problems such as increasing the burden on the bus

Inactive Publication Date: 2005-12-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this point, there is a problem of burdening the bus since external memory must be accessed

Method used

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  • Method and apparatus for predicting motion

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Embodiment Construction

[0036] Now, embodiments of the present invention will be described in detail with reference to the following drawings. In the drawings, the same parts are always indicated by the same reference numerals. The embodiments are described below to explain the present invention with reference to the drawings.

[0037] The motion vector has a similar value to the adjacent motion vector, and the adjacent motion vector is called the correlation of the motion vector. In addition, since the motion vector of the direct mode is obtained using the correlation of the motion vector, it has a similar value to the adjacent motion vector. Specifically, since the hierarchical motion estimation method uses the correlation of adjacent motion vectors, the direct motion vector is likely to exist in the internal memory that stores the data required by the ME. If the direct motion vector does not exist in the internal memory, even if the direct motion vector is obtained separately by accessing the external...

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Abstract

A method and apparatus for predicting motion. The method of predicting motion using a hierarchical motion estimation (ME) method includes compensating for motion using data stored in an internal memory used in the motion estimation method without accessing data stored in an external memory. Therefore, the internal memory used in the ME is used without accessing an external memory, whereby the load on the bus can be reduced and the processing time for the MC can be reduced.

Description

Technical field [0001] The present invention relates to an image compressor / decompressor (codec). More specifically, the present invention relates to a method and apparatus for predicting motion used in encoding image data. Background technique [0002] Recently, after the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T) H.261, H.263 and ISO / IEC Moving Picture Experts Group-1 (MPEG-1), MPEG-2, MPEG-4, The development of new moving image standards has established ITU-T H.264 (ISO / IEC MPEG4 AVC). Compared with the traditional moving image compression standard, the H.264 standard significantly improves the compression rate and image quality by using more and more complex technologies. Therefore, H.264, as an application technology for Digital Multimedia Broadcasting (DMB) and Digital Versatile Disk (DVD), has replaced the traditional moving image compression standard and has attracted attention. [0003] figure 1 It is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32H04N5/14H04N7/12H04N7/26H04N7/50
CPCH04N5/145H04N19/61H04N19/109H04N19/433H04N19/53
Inventor 李男淑李章旭朴灿植李在宪
Owner SAMSUNG ELECTRONICS CO LTD