Active contour model-based automatic positioning and segmentation method of spinal CT image

Abstract

The invention discloses an active contour model-based automatic positioning and segmentation method of a spinal CT image, and relates to the field of medical image processing. The method provides themethod of automatic positioning and segmentation on the CT image for the sensitivity problem which is of segmentation methods of spinal CT images and on initial positions and contours. n groups of spinal CT images are obtained by scanning of clinical CT instruments, and the CT slices are manually segmented by experts and are used as training samples; a random forest algorithm is used for positioning vertebral centers to determine the vertebral centers; initial contours of segmentation are placed at central positions determined by the random forest algorithm, and fuzzy contour segmentation is adopted to obtain vertebrae in the CT slice images by segmentation; and a trained model combination is output to obtain a complete vertebral CT image segmentation model. According to the spinal CT segmentation model provided by the invention, a vertebral center and an initial contour position of segmentation can be automatically positioned, a vertebra can be automatically obtained by segmentation,and segmentation steps and processes of the spinal CT image can be simplified.

Description

Technical field [0001] The invention relates to the field of medical image processing, in particular to an automatic positioning and segmentation method for spinal CT images based on an active contour model. Background technique [0002] Image segmentation is the process of dividing an image into multiple regions and extracting objects of interest. At present, image segmentation has been widely used in computer-aided diagnosis of medical images. The segmentation of medical images is regarded as the cornerstone position in image processing and analysis. With the gradual development of medical image processing and analysis technology, the processing has developed rapidly. The use of computers to analyze and process images has become an important research in modern medicine. Direction, and it has important significance and practical application value. [0003] The spine, also called the spine, is a bone structure that forms the central weight-bearing axis of the upper part of the hu...

AI Technical Summary

Problems solved by technology

In order to realize the automatic separation of vertebrae and background images on spine CT images and solve the problem that the segmentation method of spine CT images is sensitive to the initial contour position and initial contour, an accurate and effective spine CT image segmentation method based on active contour model is provided

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