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Method and device for organized equalization in image

An image neutral and balanced technology, applied in the field of DR diagnostic imaging, can solve the problems of not considering the local information contrast, easy to lose the local contrast information of the image, etc., and achieve the effect of maintaining the original information

Inactive Publication Date: 2012-05-16
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for self-adaptive tissue equalization in an image, aiming to solve the problem that the existing tissue equalization method does not consider the local information contrast and easily loses the local contrast information of the image when equalizing the image

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  • Method and device for organized equalization in image
  • Method and device for organized equalization in image
  • Method and device for organized equalization in image

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0023] see figure 1 , the device of tissue balance self-adaptation in the image that the embodiment of the present invention provides comprises: image acquisition module, image processing module, image tissue balance module, window width and window level adaptive adjustment module, image display module, image PACS (Picture Archiving and Communication Systems, image archiving and communication systems) and printing modules. The image acquisition module, image processing module, image tissue equalization module, and window width and window level adaptive adjustment module are connected in sequence, and the window width and window level adaptive adjustment module is respectively connected to the image display module, image PACS and printing...

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Abstract

The invention discloses a method and a device for an organized equalization in an image, wherein the method comprises the following steps of: calculating a mask image of an image to obtain the local grey level distribution of each pixel point, and obtaining the equalization degree parameters of the whole image; automatically setting the equalization degree coefficient of each pixel point in the image based on the mask image and the equalization degree parameters of the whole image; and performing an equalization calculation on each pixel point in the image based on the mask image and the equalization degree coefficient of each pixel point in the image to obtain the equalized image. Each pixel point can be processed by different equalization degree parameters, and the local contrast of the equalized image can be enhanced by a contrast amplification coefficient to adequately keep the original information of the image via the method and the device for an organized equalization in an image disclosed by the invention.

Description

technical field [0001] The invention relates to the field of DR (Digital Radiography, direct digital X-ray) diagnostic imaging, in particular to a method and device for tissue balance and self-adaptation in an image. Background technique [0002] In DR imaging, the image may be underexposed or overexposed by X-rays, which may cause the image to be partially bright or too dark, resulting in unclear texture and affecting diagnosis. Therefore, we add tissue equalization to DR image processing, properly adjust the overly bright or too dark part of the image, and make it properly darken or brighten without adding noise while maintaining its original characteristics, and finally To achieve the purpose of clearly displaying the organizational structure of each part in the image. [0003] Usually, most tissue equalization algorithms are equalized based on the brightness histogram of the image, and a further method is to use adaptive histogram normalization. This type of method onl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 丛龙飞朱磊
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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