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A method and processing device for suppressing bone images in X-ray images

A line image and image technology, applied in the field of suppressing bone images in X-ray images, methods and processing equipment, can solve the problem that the single-pixel prediction model cannot effectively describe the pixel correlation, it is difficult to ensure the spatial consistency of generated soft tissue images, and it is difficult to effectively use Problems such as the global information of the chest radiograph image, to achieve the effects of bone image suppression, image quality index optimization, and improved effect

Active Publication Date: 2016-04-20
SOUTHERN MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of local features lacks theoretical guidance, and the neural network model is difficult to effectively use the global information of chest radiographs
The single-pixel prediction model cannot effectively describe the correlation between pixels, and it is difficult to ensure the spatial consistency of the generated soft tissue images

Method used

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  • A method and processing device for suppressing bone images in X-ray images
  • A method and processing device for suppressing bone images in X-ray images

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Embodiment 1

[0044]The invention provides a method for suppressing bone images in X-ray images without performing dual-energy subtraction photography. Specifically, the present invention uses the previous DES image data to predict and reconstruct the bone image for a single X-ray image taken by ordinary DR or CR equipment, and generates a soft tissue image through subtraction; without increasing the exposure dose and using DES equipment , to achieve the suppression of bone images in X-ray images.

[0045] A method of suppressing bone images in X-ray images of the present invention, such as figure 1 As shown, the following steps are sequentially included.

[0046] (1) Preprocess the X-ray image to be processed and extract its image features, and the extracted image features are called subject image features.

[0047] Among them, the preprocessing of the X-ray image to be processed is specifically to perform uniform and standardized processing on the gray value range, spatial resolution, a...

Embodiment 2

[0060] A processing device for suppressing skeletal images in x-ray images, such as figure 2 As shown, the method for suppressing bone images in the X-ray image of the above-mentioned embodiment 1 is used for image processing, and the processing unit provided includes: a dual-energy image database unit, an X-ray image preprocessing and feature extraction unit, an X-ray image retrieval unit, A bone image initial estimation unit, a bone image reconstruction unit and a bone suppression image output unit.

[0061] The dual-energy image database unit pre-stores a number of clinical dual-energy subtraction prior reference X-ray images and corresponding soft tissue images, bone images, lesion area location information and image feature information of the prior reference X-ray images. The information stored in the dual-energy image database unit can be stored in advance, and can also be imported when used.

[0062] The X-ray image preprocessing and feature extraction unit preprocess...

Embodiment 3

[0069] The method of the present invention is described with a specific embodiment.

[0070] Pre-preparation is done in advance, and the dual-energy image database unit is pre-stored with clinically real DES image data, including image information of conventional chest X-rays and their corresponding soft tissue and bone images, imaging parameters, nodules and lesion size and location data, etc. information, and these data information are stored in the memory of the dual-energy image database unit.

[0071] To process the X-ray image information to be processed, the specific steps are as follows.

[0072] (1) Preprocess the X-ray image to be processed and extract its image features, and the extracted image features are called subject image features. The subject characteristics may be stored in the memory of the dual-energy image database unit.

[0073] First, the gray value range, spatial resolution, and contrast of the X-ray images to be processed are processed according to ...

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Abstract

The invention discloses a processing method and processing device for restraining a bone image in an X-ray image. A processing unit of the processing device comprises a dual energy image database unit, an X-ray image preprocessing and feature extracting unit, an X-ray image searching unit, a bone image initial estimating unit, a bone image reestablishing unit and a bone restraint image output unit. The processing method comprises the steps: (1) preprocessing an X-ray image to be processed and extracting the feature of a main body image, (2) searching and obtaining M most similar reference X-ray images and corresponding information, (3) calculating and obtaining an initial bone image, (4) performing bone image reestablishment on the X-ray image to be processed and obtaining a reestablished bone image, and (5) subtracting the reestablished bone image from the X-ray image to be processed and obtaining a soft tissue image of the X-ray image to be processed. Under the condition of performing the dual energy subtraction photographing without a DES device, the bone image is reestablished through a single X-ray image, the bone image in the X-ray image is removed through the subtraction, and the purpose of restraining the bone image is achieved.

Description

technical field [0001] The invention belongs to the technical field of X-ray image processing, and in particular relates to a method and processing equipment for suppressing bone images in X-ray images. Background technique [0002] Chest X-ray is one of the basic imaging methods for detecting pulmonary nodules and diagnosing lung diseases. However, the anatomical structures overlap each other in conventional chest radiographs, and some small nodules and lesions in the lungs may be missed due to the occlusion of the ribs and clavicles. Removing bone images in chest radiographs can solve the problem of overlapping images of anatomical structures, enhance the visibility of X-ray images, and facilitate image interpretation and diagnosis by doctors, which has a strong clinical demand. [0003] Dual Energy Subtraction (DES) technology can effectively solve the problem of bone ghosting in chest radiographs. Dual-energy subtraction technology is to take two images with high and l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06K9/62
Inventor 阳维卢振泰冯前进陈武凡
Owner SOUTHERN MEDICAL UNIVERSITY
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