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Method, device and medium for automatic background removal of multi-oblique mammography images

A line image and mammary gland technology, applied in the image processing field of automatic label and background removal in mammography images, to improve image transmission efficiency and image processing efficiency, reduce storage capacity and information storage capacity

Active Publication Date: 2022-03-25
CHANGSHU INSTITUTE OF TECHNOLOGY
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Problems solved by technology

[0005] The problem to be solved by the present invention is to provide an automatic background removal method for multi-oblique mammary gland line images, so as to solve the problem of automatic background removal of image labels and backgrounds without diagnostic information under the condition that the information of mammary gland regions photographed in different body positions is completely preserved.

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  • Method, device and medium for automatic background removal of multi-oblique mammography images

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Embodiment 1

[0024] Introduce detailed technical scheme of the present invention below in conjunction with accompanying drawing: as figure 1 As shown, an image processing method that preserves all the information of the breast region and automatically removes the background of multi-oblique mammogram images mainly includes the following steps:

[0025] Step 1 Obtain multi-oblique mammography images with a pixel depth of 16 bits in the DDSM database, which are RCC, LCC, RMLO, and LMLO respectively. The storage sizes of the images are 18.9MB, 18.7MB, 20.1MB, and 17.8MB, respectively. Such as figure 2 As shown, it is recorded as image F=(f(x, y)), where x and y are the spatial coordinates of the pixel in the image respectively, and f(x, y) is the spatial coordinate of the pixel at (x, y) grayscale value;

[0026] Step 2 Calculate the histogram of the multi-oblique mammogram F, such as image 3 As shown, according to the histogram, set the threshold T∈[3500,5000], use the threshold segment...

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Abstract

The invention discloses a method, device and medium for automatically removing the background of a multi-oblique mammogram image, including the steps of obtaining initial background and initial foreground, obtaining complete foreground area information, removing noise, obtaining connected domains, and retaining the largest The step of connected domain, dimension reduction of storage space and image background removal step is to perform image cross product operation on the above image and the original image, so as to realize the automatic removal of multi-oblique X-ray image background while retaining the full information of the breast region. The invention reduces the grayscale resolution of the background without diagnostic information in mammograms, improves image transmission efficiency and image processing efficiency; and can realize automatic segmentation of mammary gland regions with differences in position, shape and size in multi-oblique mammography images .

Description

technical field [0001] The patent of the present invention relates to the field of X-ray image processing, in particular to an image processing method for automatically removing labels and backgrounds in multi-oblique mammography images. Background technique [0002] Mammography detection technology has the characteristics of high precision, low cost and high reliability, so it is widely used in breast cancer screening and clinical diagnosis of related breast lesions. With the continuous development of artificial intelligence and deep learning related technologies in the field of image detection, it will become a research in the field of medical image processing to apply deep learning to the auxiliary screening and diagnosis of malignant tumors in mammography images based on massive medical imaging data. hotspot. The intelligent interpretation of mammography images can not only reduce the daily work pressure of radiologists, reduce unnecessary invasive detection, but also g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/136G06T7/187G06T7/194G06T7/62G06T5/00G06T5/30
CPCG06T7/11G06T7/136G06T7/194G06T7/187G06T7/62G06T5/30G06T2207/10116G06T2207/30068G06T5/70
Inventor 丁卫王庆国王伟
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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