A method for detecting a beam limiter region in a breast image, a method for determining a boundary in that breast image, and a medical device

Abstract

The invention relates to the technical field of medical image processing, in particular to a method for detecting a beam limiter region in a breast image, a method for determining a boundary in the breast image and a medical device. According to the method for detecting a beam limiter region in a breast image, Through gradient transformation and binarization of breast images, and further based onthe binary breast gradient image obtained after binarization and the binary direct exposure region template, an initial region in the breast image is determined, by combining the linear features of binary breast gradient images, the accurate positioning of the boundary of the beam limiter region in the breast image can be realized, thereby ensuring that the breast image clipped based on the positioned boundary does not remain the finite beam region, so as to effectively reduce the complexity and difficulty of the breast image post-processing and improve the post-processing effect of the breastimage.

Description

technical field [0001] The invention relates to the technical field of medical image processing, in particular to a method for detecting a beam limiter area in a breast image, a method for determining boundaries in the breast image and medical equipment. Background technique [0002] When using the Digital Mammography System (Digital Mammography System, DMG for short) to scan and shoot breast images, according to clinical needs, the corresponding imaging tissue can be compressed by selecting different compression plates, and the size of the opening of the breast beam limiter can be adjusted. , so that the size of the opening of the breast beam limiter is consistent with the size of the compression plate used, and then the captured breast image can be cropped according to the coordinates of the mechanical feedback to remove the beam limiter area in the breast image. [0003] However, due to defects such as mechanical position errors, the beam limiter area will still remain in...

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Problems solved by technology

[0003] However, due to defects such as mechanical position errors, the beam limiter area will still remain in the cropped breast image, and since the beam limiter is a high-attenuation material, the remaining The beam limiter area is a high-attenuation area, which will increase the complexity and difficulty of breast image post-processing, thereby reducing the post-processing effect of breast images

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