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Detection method, device, storage medium and X-ray system of image background area

A technology of background area and detection method, which is applied in the detection of image background area and the field of X-ray system, can solve the problems of reducing image contrast, affecting doctor's diagnosis, misjudgment as background area, etc., to improve contrast and quality, and detect structure accurately Reliable, automatic detection effect

Active Publication Date: 2022-03-04
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
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Problems solved by technology

The existence of the background area reduces the contrast of the image and affects the doctor's diagnosis
[0003] Existing image detection methods, such as using variance or threshold for detection, often result in inaccurate detection due to the complexity of medical images and the presence of noise, and it is easy to misjudge the area containing the information to be detected as the background area, resulting in the detection discontinuity of tissue image

Method used

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  • Detection method, device, storage medium and X-ray system of image background area
  • Detection method, device, storage medium and X-ray system of image background area

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Embodiment 1

[0023] figure 1 It is a flowchart of a method for detecting the background area of ​​an image in Embodiment 1 of the present invention. This embodiment is applicable to the situation of image background detection. The method can be performed by a detection device for the background area of ​​an image, and specifically includes the following step:

[0024] Step 110: Segment the image according to the Otsu method and preset segmentation conditions to determine a first segmentation threshold.

[0025] Among them, the Otsu method, also known as the maximum inter-class variance method, is an adaptive threshold determination method. The threshold of the image is determined mainly by dividing the image into two parts, the foreground and the background, and making the variance of the two gray levels of the foreground and the background the largest. The preset segmentation condition can be set by the user, or can be determined according to the gray distribution of the image, or can b...

Embodiment 2

[0055] Figure 2A It is a flow chart of a method for detecting an image background area in Embodiment 2 of the present invention. The technical solution of this embodiment is further refined on the basis of the above technical solution. Optionally, as Figure 2A As shown, the detection method of the image background area in the embodiment of the present invention includes:

[0056] Step 210: Segment the image according to the Otsu method and preset segmentation conditions to determine a first segmentation threshold.

[0057] Step 220: Adjust the first segmentation threshold according to the number of pixels corresponding to each gray value in the image and the gray value of each pixel in the image to obtain a second segmentation threshold.

[0058] Step 230: Obtain gray values ​​that are greater than the first gray value corresponding to the second segmentation threshold as gray values ​​to be selected.

[0059] Figure 2B A schematic diagram of a gray histogram of an image...

Embodiment 3

[0076] image 3 is a schematic structural diagram of a detection device for the background area of ​​an image in Embodiment 3 of the present invention, as shown in image 3 As shown, the detection device of the image background area includes: a first segmentation threshold acquisition module 310 , a second segmentation threshold acquisition module 320 and a background area determination module 330 .

[0077] Wherein, the first segmentation threshold acquisition module 310 is used to segment the image according to the Otsu method and preset segmentation conditions to determine the first segmentation threshold Otsu method; the second segmentation threshold acquisition module 320 is used to segment the image according to each The number of pixels corresponding to the grayscale value and the grayscale value of each pixel in the image are adjusted to the first segmentation threshold to obtain a second segmentation threshold; the background area determination module 330 is configure...

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Abstract

The invention discloses a detection method, device, storage medium and X-ray system of an image background area. The detection method of the image background area includes: segmenting the image according to the Otsu method and preset segmentation conditions to determine the first segmentation threshold; according to the number of pixels corresponding to each gray value in the image and the number of pixels in the image The gray value of each pixel is adjusted to the first segmentation threshold to obtain a second segmentation threshold; and the background area of ​​the image is determined according to the second segmentation threshold. The technical solution of the embodiment of the present invention realizes the automatic detection of the background area of ​​the image, and the accuracy of the detection result is high, and the contrast of the image can be effectively improved by setting the gray value of the detected background area.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image segmentation, and in particular to a detection method, device, storage medium, and X-ray system for an image background region. Background technique [0002] With the continuous advancement of science and technology, the detection level of medical equipment has gradually improved. Existing medical images often contain a background area, that is, an area that does not contain information to be detected, which can also be called a direct exposure area. The existence of the background area reduces the contrast of the image and affects the doctor's diagnosis. [0003] Existing image detection methods, such as using variance or threshold for detection, often result in inaccurate detection due to the complexity of medical images and the presence of noise, and it is easy to misjudge the area containing the information to be detected as the background area, resulting in the detection ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/11G06T7/194
CPCG06T7/0012G06T7/136G06T7/11G06T7/194G06T2207/10116G06T2207/20172
Inventor 江春花滕万里张娜赵书睿
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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