X-ray sample image generation method, X-ray sample image generation equipment and storage device

A technology of sample images and background images, applied in the field of image processing, can solve the problems of low proportion of positive sample images of contraband to be identified, difficulty in training sets, and difficulty in screening, avoiding black lumps and achieving high reliability. Effect

Active Publication Date: 2020-06-05
科大讯飞(苏州)科技有限公司
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Problems solved by technology

Although the X-ray security inspection machines used in the security field generate a large number of X-ray images every day, the proportion of positive sample images containing contraband to be identifie

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  • X-ray sample image generation method, X-ray sample image generation equipment and storage device
  • X-ray sample image generation method, X-ray sample image generation equipment and storage device
  • X-ray sample image generation method, X-ray sample image generation equipment and storage device

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[0016] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0017] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structure, interface, technology, etc. are proposed for a thorough understanding of this application.

[0018] The terms "system" and "network" in this article are often used interchangeably in this article. The term "and / or" in this text is only an association relationship that describes the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the charac...

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Abstract

The invention discloses an X-ray sample image generation method, X-ray sample image generation equipment and a storage device. The X-ray sample image generation method comprises the steps of obtaininga to-be-fused background image and a to-be-fused foreground image comprising a first to-be-identified target; obtaining a first sub-foreground image containing a first to-be-identified target from the to-be-fused foreground image, and extracting a first sub-background image matched with the size of the first sub-foreground image from the to-be-fused background image; inverting the pixel values ofthe first sub-background image and the first sub-foreground image to obtain a second sub-background image and a second sub-foreground image; performing weighting processing on the second sub-background image and the second sub-foreground image to obtain a first fusion image; inverting the pixel value of the first fusion image to obtain a second fusion image; and generating a first X-ray sample image for training the target recognition model by using the second fusion image and the to-be-fused background image. Through the above method, an effective sample image is provided for training the target recognition model.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a method for generating an X-ray sample image, a generating device and a storage device. Background technique [0002] The imaging principle of X-ray images is: X-rays have different penetrability to different substances and are attenuated to different degrees. The detector receives the attenuated X-ray signals and converts them into images for display after signal processing. [0003] X-ray images are very different from conventional images: conventional images have surface texture information, but X-ray images have no texture information, only object physical density information; conventional images have occlusion effects when superimposed, but X-ray images have perspective. Therefore, the technical difficulty of X-ray image target detection is not small: a good X-ray image target detection algorithm is inseparable from a well-conceived deep learning algo...

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Application Information

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IPC IPC(8): G06T7/00G06T7/194
CPCG06T7/0002G06T2207/10116G06T2207/20081G06T2207/20221G06T7/194
Inventor 鲁盈悦支洪平
Owner 科大讯飞(苏州)科技有限公司
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