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Block error compensation equipment of image frame and its method

A technology for compensating devices and image frames, which is applied in the field of block error devices and can solve problems such as large data volumes

Inactive Publication Date: 2004-10-13
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In multimedia communications, the amount of data to be processed can be large and can limit the bandwidth or data transmission speed of the allocated channel

Method used

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  • Block error compensation equipment of image frame and its method
  • Block error compensation equipment of image frame and its method
  • Block error compensation equipment of image frame and its method

Examples

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Embodiment Construction

[0031] Reference will now be made to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0032] Hereinafter, a block error compensating device and a method for compensating an image frame without an additional memory for real-time error compensation using a median filter to compensate for an image frame having a block error will be described with reference to the accompanying drawings.

[0033] image 3 is a block diagram showing a block error compensation apparatus for an image frame according to an exemplary embodiment of the present invention.

[0034] As shown in the figure, the image frame or video block error compensation device according to the embodiment of the present invention may include a video codec decoder 30, which is used to decode the input image frame and output the decoded image frame. The device may comprise a memory 32 for storing image frames processed in the video codec 30 . The apparatus may includ...

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Abstract

An apparatus and method are provided for compensating a block error in an image frame. This may include a video codec decoder for decoding an inputted image frame, and outputting a decoded image frame. An error concealment block may detect an error-generated block in the decoded image frame and compensate the detected error block through a median filter, and output the compensated image frame.

Description

field of invention [0001] Embodiments of the present invention relate to multimedia communication, and in particular to a device and method for compensating block errors generated by image frames. Background of the invention [0002] Mobile communications include communication systems that primarily use sound signals. However, as technology for mobile communication develops and demands increase, mobile communication develops into multimedia communication, which includes not only sound but also data as well as moving images. In multimedia communications, the amount of data to be processed can be large and can limit the bandwidth or data transmission speed of the allocated channel. A technique for transmitting / receiving a large amount of data at a limited data transmission speed by compression, such as a Moving Picture Experts Group (MPEG) technique, has been developed. [0003] MPEG technology for compressing multimedia signals can reduce the data volume of MPEG frames that...

Claims

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Application Information

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IPC IPC(8): H04N19/00H04L1/00H04N19/117H04N19/134H04N19/136H04N19/166H04N19/176H04N19/196H04N19/426H04N19/44H04N19/80H04N19/89H04N19/895
CPCH04N19/00854H04N19/00933H04N19/00896H04N19/00733H04N19/00939H04N19/00587H04N19/00569H04N19/0089H04N19/50H04N19/51H04N19/60H04N19/593H04N19/166H04N19/80H04N19/82H04N19/65H04N19/89H04N19/895H04N19/86H04N19/117H04N19/159H04N19/182H04N19/176H04N19/196
Inventor 李性圭
Owner LG ELECTRONICS INC
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