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Image coding/recording apparatus and image coding/recording method

A technology of image encoding and recording devices, which is applied in the directions of image communication, digital recording/reproduction, code conversion, etc., can solve the processing load backtracking processing complex control and circuit problems, and achieve the effect of solving the problem of processing load

Inactive Publication Date: 2007-12-12
PANASONIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, since there is no need to perform ordinary encoding and re-encoding at the same time, it is possible to solve the problem of processing load caused by real-time re-encoding and the problem of complicated control and circuits for backtracking processing

Method used

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  • Image coding/recording apparatus and image coding/recording method
  • Image coding/recording apparatus and image coding/recording method
  • Image coding/recording apparatus and image coding/recording method

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Embodiment Construction

[0073] Embodiments of the present invention will be described below with reference to the drawings.

[0074] FIG. 11 is a block diagram showing the configuration of an image encoding and recording device in an embodiment of the present invention. This image encoding and recording device encodes and records image data, and adopts a structure in which a re-encoding control unit 110 , a recording unit 120 , and an entropy decoding unit 130 are added to the predictive encoding unit 100 .

[0075] The predictive coding unit 100 is an example of a coding unit in the present invention, and includes: an A / D (Analog / Digital) conversion unit 11, an image sort buffer 12, a macroblock division unit 13, a difference processing unit 14, and an orthogonal transformation unit 15 , quantization section 16, entropy coding section 17, inverse quantization section 19, inverse orthogonal transformation section 20, addition processing section 21, frame memory 22, intra prediction section 23, inter ...

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Abstract

The invention provides an image coding / recording apparatus which can solve problems of large processing loads due to the real-time re-coding and problems of complicated controls and circuits for returning processing. The image coding / recording apparatus according to an aspect of the invention codes and records image data. The image coding / recording apparatus includes: a coding unit operable to code the image data; a recording unit operable to record the coded data; and a re-coding control unit operable to control said coding unit to re-code the coded data recorded by said recording unit and does not satisfy a predetermined condition, so that the re-coded data satisfies the predetermined condition, and control said recording unit to record the re-coded data, so that the re-coded data and non-re-coded data are reproduced consecutively.

Description

technical field [0001] The present invention relates to an image encoding and recording device for encoding and recording image data, in particular to an image encoding and recording device for encoding and recording image data in a recording medium by using the H.264 image encoding method. Background technique [0002] With the development of digital image technology, in order to deal with the increased amount of data, the technology of compressing data is used in digital image data and developed, and it has developed into a compression technology specially for image data that highlights the characteristics of image data. With the improvement of computer information processing ability, complex calculations in compression technology can be performed, and the compression rate of image data has been greatly improved. For example, the compression technology used in satellite and terrestrial digital high-definition television broadcasting is a method called MPEG2. [0003] The ...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04N7/32H04N5/926G11B20/10H03M7/40H04N5/92H04N19/00H04N19/159H04N19/40H04N19/436H04N19/503H04N19/593H04N19/60H04N19/61H04N19/70H04N19/91
CPCH04N19/00012H04N19/00187H04N7/508H04N19/00078H04N19/00278H04N19/00193H04N19/0009H04N19/00266H04N19/00127H04N19/00781H04N19/102H04N19/12H04N19/124H04N19/132H04N19/15H04N19/152H04N19/172H04N19/176H04N19/61
Inventor 西乡贺津雄荒川博
Owner PANASONIC CORP
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