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Video coding method and apparatus supporting fast fine granular scalability

A technology for video coding and video decoding, applied in the field of video coding, which can solve problems such as a large number of calculations

Inactive Publication Date: 2008-05-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, although PFGS improves performance compared to conventional FGS, it requires a large amount of calculate

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  • Video coding method and apparatus supporting fast fine granular scalability
  • Video coding method and apparatus supporting fast fine granular scalability
  • Video coding method and apparatus supporting fast fine granular scalability

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Embodiment Construction

[0038] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

[0039] The advantages and characteristics of the present invention and the method of realizing them will be more easily understood by referring to the following detailed description of the exemplary embodiments together with the accompanying drawings. This invention may, however, be embodied in various different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. Throughout the specification, like reference numerals refer to like elements.

[0040] FIG. 3 is a view for illustrating a PFGS according to a first exemp...

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Abstract

A method for reducing the amount of computations required for multilayer-based progressive fine granular scalability (PFGS) algorithm and a video coding method and apparatus employing the same method are provided. The video coding method supporting fine granular scalability (FGS) includes obtaining a predicted image for a current frame using a motion vector estimated at predetermined accuracy, quantizing a residual between the current frame and the predicted image, inversely quantizing the quantized residual, and generating a reconstructed image for the current frame, performing motion compensation on an FGS layer reference frame and a base layer reference frame using the estimated motion vector, calculating a residual between the motion-compensated FGS layer reference frame and the motion-compensated base layer reference frame, subtracting the reconstructed image for the current frame and the calculated residual from the current frame, and encoding the result of subtraction.

Description

technical field [0001] Methods and apparatus consistent with the present invention relate to video coding, and more particularly, to video coding that reduces the amount of computation required by a multi-layer based Progressive Fine Granular Scalability (PFGS) algorithm. Background technique [0002] With the development of information communication technology (including the Internet), multimedia services including various types of information such as text, video, audio, etc. are increasing. Because the amount of multimedia data is usually very large, multimedia data requires a large-capacity storage medium and a wide transmission bandwidth. Thus, compression encoding methods are required for the transmission of multimedia data including text, video and audio. [0003] The basic principle of data compression is to remove data redundancy. Data can be compressed by removing spatial redundancy, where the same color or object is repeated within an image, temporal redundancy, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/30
CPCH04N7/26351H04N19/00442H04N7/26297H04N19/00321H04N19/187H04N19/34
Inventor 韩宇镇李教爀车尚昌
Owner SAMSUNG ELECTRONICS CO LTD