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Source coding to provide for robust error recovery during transmission losses

A signal unit and coding signal technology, which is applied in the field of source coding signal units in which bits representing signal units are dispersed in multiple bit streams to enhance error recovery, and can solve problems such as error propagation and degradation of user video image quality.

Inactive Publication Date: 2007-11-07
SONY ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, efficient compression algorithms lead to more severe error propagation because errors in the encoded signal are more pronounced when subsequently decoded
This error propagation results in video image quality degradation that is very noticeable to the user

Method used

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  • Source coding to provide for robust error recovery during transmission losses
  • Source coding to provide for robust error recovery during transmission losses
  • Source coding to provide for robust error recovery during transmission losses

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Embodiment Construction

[0079] The present invention provides a method of encoding and arranging a signal stream to provide enhanced error resilience. In the following description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that these specific details are not necessary to practice the present invention. In other instances, well-known electrical structures and circuits are shown in block diagram form in order not to unnecessarily obscure the present invention.

[0080] The signal processing method and structure are described from the perspective of an embodiment in which the signal is a video signal. However, the methods and apparatus described herein are intended to be applied to various types of signals, including audio signals or other digital data bit streams, where each signal is composed of a plurality of signal units. In addition, processing embodiments descr...

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Abstract

A system and method for recovering lost / damaged attribute data in a bitstream of encoded data comprising attribute data and encoded sample data is disclosed. The decoded neighboring data is retrieved and lost / damaged attribute data is estimated using the encoded sample data, the decoded neighboring data, and available attribute data. In one embodiment, this is used in the transmission of video signals over a potentially lossy communications channel.

Description

[0001] related application [0002] This application is submitted on January 2, 1998 entitled "Image-to-Block Mapping to Provide for Robust Error Recovery During Transmission Losses" SourceCoding to Provide for Robust Error Recovery During TransmissionLosses (source coding that provides enhanced error recovery during transmission loss)" and "Multiple Block Based Recovery Method to Provide for RobustError Recovery During Transmission Losses (provides enhanced error recovery during transmission loss) A continuation-in-part of the U.S. patent application for multi-block based recovery method. technical field [0003] The present invention relates to providing enhanced recovery from errors due to data loss during signal transmission. More specifically, the present invention relates to a data shuffling method for facilitating enhanced error resilience. Background technique [0004] There are many techniques for reconstructing lost data due to random errors in signal transmissio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/64H04N7/26H04N19/89G06T9/00H03M13/01H03M13/27H04N5/21H04N5/44H04N19/895
CPCH04N19/00757H04N19/00933H04N5/21H04N19/00981H04N5/4401H04N7/26957H04N19/00939H04N7/465H04N19/00903H04N7/68H04N19/00927H04N7/64H04N7/26882H04N19/89H04N19/85H04N19/98H04N19/895H04N19/59H04N19/88H04N21/426
Inventor T·康多Y·弗吉莫里J·J·卡里格S·戈萨尔
Owner SONY ELECTRONICS INC