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Self-adapting processed information process equipment using sorting and method thereof

A technology of information processing equipment and information processing methods, which is applied in image data processing, image communication, digital video signal modification, etc.

Inactive Publication Date: 2005-10-26
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when the missing pixel is replaced by another pixel or linear interpolation is used for the missing pixel, the reproduced image gives a different impression due to the loss of resolution and loss of continuity with the surrounding pixels
And in the case of using a median filter, it gives the impression of incongruity

Method used

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  • Self-adapting processed information process equipment using sorting and method thereof
  • Self-adapting processed information process equipment using sorting and method thereof
  • Self-adapting processed information process equipment using sorting and method thereof

Examples

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Embodiment Construction

[0105] FIG. 1 shows an image communication system for image communication according to the present invention. The sending device 1 compresses the input video signal through the method of the present invention, encodes the signal, converts it into a packet format, and sends it to the receiving device 2 through the transmission path. The receiving device 2 receives packets sent through the transmission path, decodes data contained in the packets by the method of the present invention, decompresses the data, and outputs it as a video signal. During the transmission path, the data contained in the packet may be partially lost due to congestion or some reason. If the processing capacity of the ATM switch (not shown) constituting the transmission path is exceeded, the packet itself will be lost.

[0106] Fig. 2 shows a structural block diagram of a sending device 1 according to an embodiment of the present invention. When the Y / C-separated chrominance decoder 11 receives an analog...

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Abstract

A class synthesizing circuit classifies an aimed-at data item into one of a plurality of classes specified in advance, according to a plurality of data items disposed around the aimed-at data item. A coefficient holding and class-code selection circuit stores conversion information for the aimed-at data item, for each class. An estimation-prediction calculation circuit converts the aimed-at data item to a higher-quality data item according to the conversion information. The class synthesizing circuit classifies the aimed-at data item into a different class according to whether the aimed-at data item is missing.

Description

technical field [0001] The present invention relates to an information processing device using class-classification adaptive processing and a method thereof. Background technique [0002] Variable length coding, typically entropy coding, has been used in many data transmission compression methods to improve the compression ratio. The feature of entropy coding is to change the length of the code word according to the content of the data to be compressed to achieve compression. For example, short codewords are assigned to frequently used data and long codewords are assigned to infrequently used data. As a result, the information volume of the entire data to be transmitted is reduced. [0003] When the receiving side receives erroneous data due to communication errors, since the length of each codeword is always changed according to the data content, errors in decoding continue to a point used as a reference for transmission data. This phenomenon is called "error propagation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24G06T9/00H04N19/89H04N19/895
CPCH04N19/00751H04N19/00933H04N19/00939H04N19/89H04N19/587H04N19/895H04N19/98
Inventor 近藤哲二郎中屋秀雄渡边勉大塚秀树高桥康昭和田成司永野隆浩太田浩二白木寿一
Owner SONY CORP