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X-ray image processing method and system and X-ray image processing equipment

A processing method and optical image technology, applied in the field of biomedical image processing, can solve the problems of large amount of calculation and long processing time, and achieve the effect of improving processing capacity, short processing time and high precision

Active Publication Date: 2014-07-02
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide an X-ray image processing method, aiming to solve the problem that the watershed segmentation algorithm of multi-scale morphology in the prior art has a large amount of calculation and a long processing time for the X-ray image processing process

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  • X-ray image processing method and system and X-ray image processing equipment

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Embodiment 1

[0056] figure 1 It shows the flow chart of the implementation of the X-ray image processing method provided by Embodiment 1 of the present invention, which is described in detail as follows:

[0057] In S101, obtain the X-ray image to be processed;

[0058] In S102, preprocessing the X-ray image to remove noise in the X-ray image;

[0059]In this embodiment, during the X-ray image acquisition process, due to the influence of equipment, environment and other conditions, noise will inevitably appear in the acquired image. The existence of noise will seriously affect the subsequent gradient calculation and weaken the intensity of the original image. Edges, therefore, require preprocessing of the X-ray image to filter out noise in the X-ray image.

[0060] By observing the histogram of the X-ray image, it can be found that the high-signal noise points in the X-ray image occupy a small proportion of all pixels in the image. Therefore, this feature can be used to filter the noise ...

Embodiment 2

[0111] Figure 5 It shows the structural diagram of the X-ray image processing system provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown. The system may be a software unit built in the X-ray image processing device , a hardware unit or a combination of hardware and software.

[0112] The system includes:

[0113] an acquisition unit 51, configured to acquire an X-ray image to be processed;

[0114] A preprocessing unit 52, configured to preprocess the X-ray image to remove noise in the X-ray image;

[0115] a gradient image calculation unit 53, configured to calculate the gradient image of the X-ray image;

[0116] A gradient threshold calculation unit 54, configured to calculate a gradient threshold according to the gradient histogram of the gradient image, and mark all pixel points in the gradient image with a gradient value smaller than the gradient th...

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Abstract

The invention is suitable for the technical field of biomedical image processing, and provides an X-ray image processing method and system and X-ray image processing equipment. The method includes the steps that an X-ray image to be processed is obtained; the X-ray image is preprocessed so as to remove noise in the X-ray image; the gradient image of the X-ray image is calculated; a gradient threshold is calculated according to the gradient histogram of the gradient image; all pixels with gradient values being less than the gradient threshold in the gradient image are marked as seed points; watershed segmentation is conducted on the gradient image and the seed points for serving as input so as to obtain a marked image of the X-ray image; region merging is conducted on the marked image, and binarization processing is conducted on the X-ray image undergoing region merging. The calculated amount in the X-ray processing process is greatly reduced, the processing time is short, the accuracy is high, the roughness is enhanced, and the capacity for processing X-ray images with complicated backgrounds is improved.

Description

technical field [0001] The invention belongs to the technical field of biomedical image processing, and in particular relates to an X-ray image processing method, system and X-ray image processing equipment. Background technique [0002] Human body X-ray image is a commonly used medical diagnostic method. Due to the influence of equipment and filming conditions, the background part of the image is often more complicated, such as uneven background gray scale, overlapping gray scale range of foreground and background, etc., which is very It affects doctors' reading and diagnosis of X-ray images, and is not conducive to the follow-up processing of X-ray images. [0003] The watershed segmentation algorithm is an important method for X-ray image segmentation. The advantage of the watershed segmentation algorithm is that the segmentation speed is fast and it can accurately locate small edges. However, since there are usually many minimum points of the image gradient, it is easy t...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T5/00
Inventor 张晓东胡庆茂罗火灵张远修贾富仓
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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