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Determining relevance values

A correlation value and correlation technology, applied in image data processing, instruments, electrical components, etc., can solve problems such as noise sensitivity

Inactive Publication Date: 2007-02-21
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of known classification methods is that they are sensitive to noise

Method used

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Examples

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Embodiment Construction

[0039] figure 1 An embodiment of the pixel correlation determination unit 100 according to the present invention is schematically shown. The pixel correlation determination unit is supplied with image data at an input connector 106 . This image data may correspond to a still picture. Alternatively, the image data corresponds to a sequence of video images. The pixel correlation determination unit is configured to compute a pixel correlation map for each image. A pixel correlation map is a two-dimensional array of correlation values. Each element of the two-dimensional array corresponds to an individual pixel of the input image. At the output connector 108 of the pixel correlation determination unit 100 a pixel correlation map is provided.

[0040] The pixel correlation determining unit 100 includes:

[0041] - an edge direction calculation unit 102, which calculates the edge directions of the pixels of the input image; and

[0042] - A pixel correlation assigning unit 10...

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Abstract

A pixel relevance determining unit ( 100 ) for determining relevance values for respective pixels of an image is disclosed. The pixel relevance determining unit ( 100 ) comprises edge determining means ( 102 ) for determining a first edge orientation for a first one of the pixels ( 300 ) on basis of a first group of pixel values and for determining a second edge orientation for a second one of the pixels ( 308 ) on basis of a second group of pixel values, the second one of the pixels ( 308 ) being located in a neighborhood of the first one of the pixels ( 300 ); and assigning means ( 104 ) for assigning a first one of the relevance values corresponding to the first one of the pixels ( 300 ), on basis of comparing the first edge orientation with the second edge orientation.

Description

technical field [0001] The invention relates to a pixel correlation determination unit for determining correlation values ​​for individual pixels of an image. [0002] The invention also relates to an image processing device comprising: [0003] - receiving means for receiving a signal representing the image; [0004] - a pixel correlation determination unit, like the pixel correlation determination unit described above, for determining a correlation value for each pixel of the image; and [0005] - filtering means for computing an output image from the image and from the correlation value of the aforementioned determination unit. [0006] The invention also relates to a method for determining correlation values ​​for individual pixels of an image. [0007] The invention also relates to a computer program product to be loaded by computer means, comprising instructions for determining correlation values ​​for individual pixels of an image, the computer means comprising proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/20
CPCG06T2207/20012G06T5/001G06T5/20G06T5/002G06T2207/20192G06T7/0083G06T7/12G06T5/70G06T5/00H04N1/40
Inventor J·A·P·特根博希
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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