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Image target area detection method and device, X-ray system and storage medium

A technology of target area and detection method, which is applied in the field of image processing, can solve the problem of low accuracy of detection method, and achieve the effect of improving detection accuracy and effect

Active Publication Date: 2018-06-01
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The detection method, device, X-ray system and storage medium of the image target area provided by the embodiment of the present invention solve the problem of low accuracy of the existing image target area detection method

Method used

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  • Image target area detection method and device, X-ray system and storage medium
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  • Image target area detection method and device, X-ray system and storage medium

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Embodiment 1

[0059] figure 1 It is a flow chart of the method for detecting an image target area provided by Embodiment 1 of the present invention. The technical solution of this embodiment is applicable to the detection of a target region from a grayscale image, especially the detection of a target region from an X-ray image, for example, the detection of an implant region in a mammary X-ray image. The method can be executed by the device for detecting an image target area provided by the embodiment of the present invention, and the device can be implemented in the form of software and / or hardware, and configured to be applied in a processor. The method specifically includes the following steps:

[0060] S101. Acquire an image to be detected, where the image to be detected includes a human body area.

[0061] In this embodiment, the detection of the implant area in the mammary gland image is taken as an example for illustration, so the image to be detected is a mammary gland X-ray image...

Embodiment 2

[0084] Figure 8 It is a structural block diagram of the device for detecting an image target area provided by Embodiment 2 of the present invention. The device is used to execute the method for detecting an image target area provided by any of the above embodiments, and the control device may be implemented by software or hardware. Such as Figure 8 As shown, the device includes:

[0085] An image acquisition module 11, configured to acquire an image to be detected, the image to be detected includes a human body area;

[0086] The graph obtaining module 12 is used to obtain the graph of the human body region based on the Gaussian weighted Otsu method, and the graph is used to represent the relationship between the pixel gray value and the Gaussian weighted inter-class variance corresponding to the pixel gray value ;

[0087] An effective peak determination module 13, configured to determine an effective peak in the graph and a pixel gray value corresponding to the effecti...

Embodiment 3

[0094] Figure 9 It is a structural block diagram of the medical imaging system provided by Embodiment 3 of the present invention. Such as Figure 9 As shown, the system includes a projection data acquisition device 2 and a computer device 3. The image acquisition device 1 is used to obtain medical image data of a target site of a test subject containing a foreign body; the computer device 3 is connected to the projection data acquisition device 2, such as Figure 10 As shown, the computer device 3 includes a processor 301, a memory 302, an input device 303, and an output device 304; the number of processors 301 in the computer device 3 may be one or more, Figure 10 Take a processor 301 as an example; the processor 301, memory 302, input device 303 and output device 304 in the computer device 3 can be connected by bus or other methods, Figure 10 Take connection via bus as an example.

[0095] The memory 302, as a computer-readable storage medium, can be used to store soft...

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Abstract

The embodiment of the invention discloses an image target area detection method and device, an X-ray system and a storage medium. The method comprises the steps of: obtaining an image to be detected,wherein the image to be detected comprises a human body area; solving a curve map of the human body area based on the Gauss weighing ostu algorithm, wherein the curve map is configured to show a relation of pixel gray values and Gauss weighing interclass variances corresponding to the pixel gray values; determining valid peaks in the curve map and pixel gray values corresponding to the valid peaks; determining the number of pixels having the pixel gray values being the pixel gray values corresponding to the valid peaks in the image to be detected; determining a segmentation threshold accordingto the number of the pixels corresponding to the valid peaks and the pixel gray values; and determining a target area in the image to be detected according to the segmentation threshold. The problemis solved that a current image target area detection method is low in accuracy, the purpose is achieved that the target area detection accuracy is improved, and an effect on post-processing of the image is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, to a detection method, device, X-ray system, and storage medium of an image target area. Background technique [0002] In medical images, it is often necessary to detect the target area, and then perform image post-processing based on the detection results. Region of interest to improve the effect of subsequent image processing, such as improving image contrast. [0003] In existing image target area detection or implant detection, the Otsu method is usually used to automatically segment the image to be detected. However, when the size ratio of the target area to the background is quite different, or there are many obvious pixel-level areas in the image, the accuracy of image target area detection is low. Contents of the invention [0004] The detection method, device, X-ray system and storage medium of the image target area provided by the em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06T7/11G06T7/136
CPCG06T7/11G06T7/136G06T2207/10116G06T2207/30068G06V10/44
Inventor 杨乐王汉禹张娜
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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