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Method and apparatus for determining reference data unit for predictive video data coding

A technology of data unit and reference data, which is applied in the direction of digital video signal modification, TV, electrical components, etc., can solve the problem of inability to execute video data, and achieve the effect of improving coding efficiency

Inactive Publication Date: 2006-02-15
SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, predictive encoding based on conventional raster scanning methods cannot be performed on video data scanned using the region-of-interest directional scanning method

Method used

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  • Method and apparatus for determining reference data unit for predictive video data coding
  • Method and apparatus for determining reference data unit for predictive video data coding
  • Method and apparatus for determining reference data unit for predictive video data coding

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Embodiment Construction

[0033] According to an aspect of the present invention, there is provided a method of determining at least one reference data unit for predictive encoding or decoding of a current data unit from at least one previous data unit using region-of-interest directional scanning The method is scanned prior to the current data unit, and by the method of directional scanning for the region of interest, the data unit at a predetermined position of the region of interest is scanned first and then the outer data unit is scanned sequentially. The method includes: selecting at least one previous data unit adjacent to the current data unit from the at least one previous data unit; and determining the at least one from the selected at least one previous data unit A reference data unit for predictive encoding or decoding of the current data unit.

[0034]According to another aspect of the present invention, there is provided a method of determining a reference data unit for predictive encoding...

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Abstract

A method and apparatus for determining a reference data unit for predictive video data coding. The method includes: selecting at least one previous data unit located adjacent to a current data unit from among previous data units; and determining at least one reference data unit for predictive coding or decoding the current data unit from among the selected previous data units.

Description

technical field [0001] The present invention relates to predictive video data encoding, and more particularly, to a method and device for determining a reference data unit for predictively encoding a current data unit. Background technique [0002] Compression coding is required for storing or transmitting large amounts of still or moving image video data. Video data encoding and / or decoding is performed on macroblocks, blocks, or pixels of each predetermined data unit. In order to perform video data encoding and / or decoding for each predetermined data unit, a process of scanning data units of an image is performed. [0003] FIG. 1 is a diagram illustrating a conventional raster scanning method. Referring to FIG. 1, in this conventional raster scanning method, data units of an image are scanned from left to right and from top to bottom. In other words, the data unit in the upper left corner of the image is the first data unit that is scanned. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32H04N7/26H04N7/30
CPCH04N19/00115H04N19/0026H04N19/0066H04N19/00775H04N19/00024H04N19/105H04N19/129H04N19/17H04N19/56H04N19/60
Inventor 朴光勋
Owner SAMSUNG ELECTRONICS CO LTD