Image processing device and method

An image processing device and image data technology, applied in image communication, character and pattern recognition, computing, etc., can solve the problem of increasing the distribution of high-definition images, and achieve the effect of suppressing deterioration

Active Publication Date: 2015-07-29
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, recently, there has been a demand for high-compression rate encoding (for example, a need to compress an image of approximately 4000×2000 pixels four times that of a high-definition image or a need for distribution of a high-definition image in a limited transmission rate environment such as the Internet ) further increases

Method used

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  • Image processing device and method
  • Image processing device and method
  • Image processing device and method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0102] 1. First Embodiment (Image Coding Device)

[0103] 2. Second Embodiment (Image Decoding Device)

no. 3 example

[0104] 3. Third Embodiment (Multi-viewpoint Image Coding / Multi-Viewpoint Image Decoding Device)

[0105] 4. Fourth Embodiment (Hierarchical Image Coding / Hierarchical Image Decoding Apparatus)

no. 5 example

[0106] 5. The fifth embodiment (computer)

[0107] 6. Examples of applications

[0108] 7. Examples of Applications of Scalable Coding

[0109] 8. The sixth embodiment (unit / unit / module / processor)

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Abstract

The present invention pertains to an image processing device and method that enable reductions in image quality to be minimized. Provided are: a threshold value setting unit that sets, in accordance with the bit depth of image data, a threshold value for identifying characteristics of the surrounding pixels of a current block in an intra prediction process performed when encoding the image data; and a filtering unit that filters the surrounding pixels by using a filter appropriate for the characteristics of the surrounding pixels identified by utilizing the threshold value set by the threshold value setting unit. The present invention can be applied to an image processing device, for example.

Description

technical field [0001] The present disclosure relates to an image processing device and an image processing method, and more particularly, to an image processing device and an image processing method capable of suppressing image quality degradation. Background technique [0002] In recent years, devices for compressing and encoding images by employing an encoding scheme in which image information is regarded as digital data, and at this time, for efficient information transfer and accumulation, by Compression is performed by orthogonal transform such as discrete cosine transform and motion compensation using redundancy unique to image information. The encoding scheme includes, for example, MPEG (Moving Picture Experts Group) and the like. [0003] Specifically, the MPEG-2 (ISO / IEC 13818-2) scheme is defined as a general-purpose image coding scheme, and is a standard covering interleaved scanning images and sequential scanning images as well as standard-resolution images and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/50
CPCH04N19/184H04N19/11H04N19/117H04N19/86H04N19/136H04N19/182H04N19/597H04N19/159H04N19/30H04N19/82H04N19/593
Inventor 佐藤数史
Owner SONY CORP
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