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Method and apparatus for multi-layered video encoding and decoding

A coding and video technology, applied in the direction of digital video signal modification, TV, pulse modulation TV signal transmission, etc., can solve the problems of unstable intra-frame prediction mode, showing good or poor performance, etc.

Inactive Publication Date: 2007-11-07
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The BL prediction mode mainly exhibits moderate prediction performance, while the intra prediction mode erratically shows good or poor performance

Method used

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  • Method and apparatus for multi-layered video encoding and decoding
  • Method and apparatus for multi-layered video encoding and decoding
  • Method and apparatus for multi-layered video encoding and decoding

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Embodiment Construction

[0053] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. Advantages and features of the present invention and methods for achieving them can be more easily understood by referring to the following detailed description of exemplary embodiments and accompanying drawings. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these 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 invention will only be defined by the appended claims. The same reference numerals refer to the same elements throughout the specification.

[0054] The present invention will now be described more fully with reference to the accompanying drawings, in which preferred embodiments of the inv...

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Abstract

A video compression method, and more particularly, a prediction method for efficiently eliminating redundancy within a video frame, and a video compression method and an apparatus using the prediction method are provided. There is provided a method for encoding video based on a multi-layer structure, including performing intra-prediction on a current intra-block using images of neighboring intra-blocks of the current intra-block to obtain a prediction residual, performing prediction on the current intra-block using an image of a lower layer region corresponding to the current intra-block to obtain a prediction residual, selecting one of the two prediction residuals that offers higher coding efficiency, and encoding the selected prediction residual.

Description

technical field [0001] Apparatuses and methods consistent with the present invention relate to video compression methods, and more particularly, to prediction methods for effectively eliminating redundancy within video frames, and video compression methods and apparatuses utilizing the same. Background technique [0002] With the development of information communication technology including the Internet, video communication as well as text and voice communication have grown significantly. Conventional text communication cannot satisfy various needs of users, and thus multimedia services that can provide various types of information such as text, pictures, and music have increased. However, since the amount of multimedia data is generally large, the multimedia data requires a large-capacity storage medium and a wide transmission bandwidth. Therefore, in order to transmit multimedia data including text, video and audio, compression coding methods are essential. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N19/107H04N19/11H04N19/119H04N19/137H04N19/147H04N19/176H04N19/19H04N19/196H04N19/33H04N19/51H04N19/567H04N19/59H04N19/593H04N19/61H04N19/64H04N19/91
CPCH04N19/00781H04N19/00175H04N19/00278H04N19/00187H04N19/00042H04N19/00757H04N7/26351H04N19/00951H04N19/00351H04N19/176H04N19/147H04N19/15H04N19/61H04N19/11H04N19/91H04N19/19H04N19/59E03F5/10E03F5/06
Inventor 韩宇镇车尚昌河昊振
Owner SAMSUNG ELECTRONICS CO LTD
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