Method and apparatus for video error concealment using reference frame selection rules

a technology of reference frame selection and video error, applied in the field of video decoding, can solve problems such as unnecessary degradation of concealment quality and corruption of video bitstreams

Inactive Publication Date: 2016-03-10
INTERDIGITAL MADISON PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach enhances video error concealment by using more correlated frames, reducing distortion and error propagation, especially in high-motion video sequences, and improves concealment quality by selecting frames that carry motion information, even when the I-frame is not the best reference.

Problems solved by technology

In error-prone transmission environments (e.g., the Internet, wireless networks, and so forth), a transmitted video bitstream may suffer corruptions caused by channel impairment.
However, this practice does not necessarily produce the best concealment performance for some specific frames or bitstream patterns and, thus, may result in unnecessary degradation of concealment quality.

Method used

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  • Method and apparatus for video error concealment using reference frame selection rules
  • Method and apparatus for video error concealment using reference frame selection rules
  • Method and apparatus for video error concealment using reference frame selection rules

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Embodiment Construction

[0014]The present invention is directed to a method and apparatus for video error concealment using reference frame selection rules.

[0015]The present description illustrates the principles of the present invention. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the principles of the invention and are included within its spirit and scope.

[0016]All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the principles of the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions.

[0017]Moreover, all statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equiv...

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Abstract

There are provided methods and apparatus for block-based error concealment. An apparatus includes an error concealment module (177) for concealing a current block in a lost picture in a group of pictures by using a last available inter-coded picture in a previous group of pictures, when the lost picture is a first inter-coded picture in the group of pictures. The group of pictures has a pattern characterized as an intra-coded picture followed by a sequence of inter-coded pictures.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application Ser. No. 60 / 748,250, filed Dec. 7, 2005 and entitled “METHOD AND APPARATUS FOR VIDEO ERROR CONCEALMENT USING REFERENCE FRAME SELECTION RULES,” which is incorporated by reference herein in its entirety.FIELD OF THE INVENTION[0002]The present invention relates generally to video decoding and, more particularly, to a method and apparatus for video error concealment using reference frame selection rules.BACKGROUND OF THE INVENTION[0003]In error-prone transmission environments (e.g., the Internet, wireless networks, and so forth), a transmitted video bitstream may suffer corruptions caused by channel impairment. A common situation encountered in some practical systems is that certain compressed video frames are dropped from a bitstream. It is especially true for low bit-rate applications where a frame is small enough to be coded into a transmit unit, such as a real time transp...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04N19/895H04N19/159H04N19/176H04N19/44H04N19/513H04N19/89
CPCH04N19/895H04N19/159H04N19/513H04N19/176H04N19/44H04N19/51H04N19/86
InventorBANDYOPADHYAY, SAURAV KUMARWU, ZHENYUPANDIT, PURVIN BIBHASBOYCE, JILL
OwnerINTERDIGITAL MADISON PATENT HLDG