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Image processing apparatus

一种图像处理装置、图像的技术，应用在图像通信、记录信号处理、电视等方向，能够解决失去商业机会、不能满足内容提供方和用户双方各种各样级别的要求等问题，达到灵活版权管理的效果

Inactive Publication Date: 2005-10-05
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this method is a standardized processing method that only allows or prohibits, and cannot meet the various levels of requirements of both content providers and users.
For example, content providers will lose business opportunities simply by prohibiting copying

Method used

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Experimental program
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no. 1 approach

[0029] The first embodiment is an image processing apparatus that generates: a hierarchical encoded image data stream; and an encoded stream to which a copyright level corresponding to an image of the hierarchical level is added.

[0030] figure 2 It shows the structure of the image processing apparatus 100 of 1st Embodiment. This configuration can be realized as hardware by a CPU, memory, or other LSI of any computer, and as software can be realized by a program having a decoding function loaded in the memory. Here, functional blocks realized by the cooperation of these are drawn. Therefore, those skilled in the art can understand that these functional blocks can be realized in various forms by using only hardware, only software, or a combination of these.

[0031] The image processing device 100 includes a wavelet transformation unit 10 , a frame buffer 12 , a quantization unit 14 , a bit-plane coding unit 16 , an arithmetic coding unit 18 , a stream generation unit 20 , a ...

no. 2 approach

[0042] The second embodiment is an image processing device that receives a graded coded image data stream and performs processing corresponding to the copyright level.

[0043] Figure 5 The configuration of the image processing device 200 of the second embodiment is shown. The image processing device 200 includes a decoding unit 250 . The decoding unit 250 includes a stream analysis unit 252 , an arithmetic decoding unit 254 , a bit plane decoding unit 256 , an inverse quantization unit 258 , a wavelet inverse conversion unit 260 , and a frame buffer 262 .

[0044] The stream analysis unit 252 receives the coded image data CI from the recording unit 42 or the communication unit 44 of the device, and analyzes the data stream thereof. Then, copyright level information included in the header and the like of the coded image data CI is detected and transferred to the copyright management unit 30 . The arithmetic decoding unit 254 performs arithmetic decoding on the result of th...

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Abstract

The image processing apparatus comprises a wavelet transform unit, a frame buffer, a quantization unit, a bit plane coding unit, an arithmetic coding unit, and a stream generating unit, and converts an original image into coded image data hierarchically by using these units. A copyright level management table manages copyright levels to be permitted to users who use the coded image data. A copyright level recording unit records copyright level information on the corresponding profile into a header or other areas of the coded image data in consideration of such factors as users and regions to be provided.

Description

technical field [0001] The present invention relates to an image processing device. In particular, the present invention relates to an image processing device that processes an image stream having a layered structure. Background technique [0002] In recent years, the use of digital content has been increasing with the spread of basic facilities such as communication via DVD media, digital broadcasting, and Internet-based subscription request (on-demand service). Copyright management of digital content becomes important because it does not degrade with copying. The demand for proper protection of the copyright of works such as digital content will become stronger in the future. Patent Document 1 discloses a method of prohibiting copying using copy restriction information of a stream. [0003] [Patent Document 1] [0004] Japanese Patent Application Publication No. 2001-86444 [0005] However, this method is a standardized processing method that only allows or prohibits,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/36H04N1/387H04N1/41H04N7/24H04N19/34H04N19/60H04N19/635H04N19/91
CPCH04N7/50G11B27/3027G11B20/00818H04N7/26563H04N19/00842H04N19/00781G11B20/00086G11B2020/00079H04N19/61H04N19/647
Inventor 冈田茂之松尾义裕冈田伸一郎
Owner SANYO ELECTRIC CO LTD
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