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Image processing apparatus and image processing method

An image processing device and technology of processing capacity, which are applied in the directions of image communication, TV, color TV components, etc., can solve the problem that noise reduction is not periodic and effective, etc.

Inactive Publication Date: 2012-12-12
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case the noise reduction is not periodically effective

Method used

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  • Image processing apparatus and image processing method
  • Image processing apparatus and image processing method
  • Image processing apparatus and image processing method

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Embodiment Construction

[0040] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the following items are described in this order.

[0041] 1. Example

[0042] 2. Example

[0043]

[0044] [Configuration Example of Image Processing Device]

[0045] figure 1 A configuration example of the image processing apparatus 100 according to the embodiment of the present technology is shown. The image processing apparatus 100 performs cyclic NR (noise reduction) processing by using the previous frame output image data that has undergone data compression / decompression processing. The image processing apparatus 100 includes a noise reduction unit 110, an encoder 120, a frame memory 130, and a decoder 140.

[0046] The encoder 120 performs a reversible data compression process on the output image data obtained by the noise reduction unit 110 by using a predetermined compression algorithm to thereby obtain compressed image data. This technology is independent ...

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Abstract

The invention relates to an image processing apparatus and an image processing method. The image processing apparatus includes: a noise reduction processing amount calculator configured to calculate a noise reduction processing amount based on input image data and previous-frame output image data subjected to data compression / decompression processing; a feedback ratio correction unit configured, based on compression error information, to output the uncorrected noise reduction processing amount calculated by the noise reduction processing amount calculator with regard to a pixel having a noise reduction feedback ratio less than 100%, and to correct the noise reduction processing amount with regard to a pixel having a noise reduction feedback ratio of 100% or more such that the feedback ratio is less than 100%, and to output the corrected noise reduction processing amount; and an adder configured to add the noise reduction processing amount output from the feedback ratio correction unit to the input image data to thereby obtain output image data.

Description

Technical field [0001] The present disclosure relates to an image processing device and an image processing method. Specifically, the present disclosure relates to an image processing apparatus and an image processing method that perform cyclic noise reduction processing by using output image data of the previous frame that has undergone data compression / decompression processing. Background technique [0002] Recently, in image processing LSIs (large scale integration), etc., complex high-quality image functions, etc. have greatly increased the memory bandwidth. As a countermeasure, in many cases, image data is compressed to reduce the amount of communication with external memory. [0003] Figure 4 An example of the image processing apparatus 200 that performs cyclic noise reduction processing is shown. The image processing device 200 includes a noise reduction unit 210, an encoder 220, a frame memory 230, and a decoder 240. In the image processing apparatus 200, the image data ...

Claims

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Application Information

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IPC IPC(8): H04N5/21H04N5/911
CPCH04N19/00303H04N7/26196H04N19/00066H04N19/00896H04N7/26058H04N19/002H04N7/26888H04N5/21H04N7/36H04N7/26382H04N19/00575H04N19/00909H04N7/26255H04N19/117H04N19/154H04N19/182H04N19/503H04N19/82H04N19/86
Inventor 内田真树神尾和宪
Owner SONY CORP