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Encoding device, decoding device and encoding, decoding method and image processing device

An encoding device and encoding technology are applied in the fields of encoding device, decoding device and encoding, decoding and image processing device, and can solve the problems of insufficient image compression rate and the like

Inactive Publication Date: 2004-10-20
MITSUBISHI ELECTRIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the increase in the number of pixels of the input image, the colorization of the input image, and the multi-layering of the input image, the capacity of the input information has increased. Therefore, when storing information with a limited storage capacity, there is a problem. Insufficient image compression on devices

Method used

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  • Encoding device, decoding device and encoding, decoding method and image processing device
  • Encoding device, decoding device and encoding, decoding method and image processing device
  • Encoding device, decoding device and encoding, decoding method and image processing device

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Embodiment Construction

[0201] Embodiment 1

[0202] Fig. 1 is a perspective view showing a configuration example of an image processing apparatus including an encoding device according to the present invention.

[0203] The image processing apparatus equipped with the decoding apparatus of the present invention also has the same structure as that of the image processing apparatus shown in FIG. 1 .

[0204] In FIG. 1 , an image processing device 60 includes a display unit 61 , a keyboard 62 , a mouse 63 , a mouse pad 64 , a system unit 65 , and a compact disk drive 100 .

[0205] The image processing device of the present invention, for example, as shown in FIG. 1, inputs the coded image information from the compressed disk device 100 and decodes it, sends the decoded image information to the system unit 65, and displays Unit 61 is displayed. The image processing device of the present invention encodes the image information displayed on the display unit 61 and outputs it to the compact disk drive 1...

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Abstract

By combining a plurality of encoding methods actively, an encoding efficiency is enhanced. The first encoder (5) encodes a result of determination whether a prediction error is zero or not. The second encoder (6) encodes the prediction error unless the prediction error is zero. The third encoder (8) encodes the prediction error regardless of whether the prediction error is zero or not. The mode determinator (2) determines the encoding mode, and the encoding controller (11) selectively operates the first encoder (5), the second encoder (6), and the third encoder (8) according to the encoding mode determined.

Description

technical field [0001] The present invention relates to a coding device, a decoding device and a coding and decoding method for coding or decoding image information generated and used by facsimile devices, scanners, computers, digital cameras, etc. In particular, it relates to an encoding device and a decoding device which are equipped with two encoding methods and two decoding methods and efficiently encode and decode image information by switching between the two methods. The present invention also relates to an encoding method and a decoding method for efficiently encoding and decoding image information. In addition, the present invention also relates to an image processing device equipped with the coding device and the decoding device of the present invention. Furthermore, the present invention also relates to an image processing device that executes the coding method and the decoding method of the present invention. Background technique [0002] Existing example 1 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T9/00H04N1/41H04N7/26H04N19/593
CPCH04N19/00303H04N19/00157H04N19/00763H04N19/00957H04N19/00078H04N1/41H04N19/593H04N19/12H04N19/14H04N19/182H04N19/93H04N7/24
Inventor 木村智广上野几朗柳谷太一吉田雅之小野文孝的场成浩上田国雄
Owner MITSUBISHI ELECTRIC CORP
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