Spine three-dimensional reconstruction method and system

Abstract

The invention relates to a spine three-dimensional reconstruction method and system, and belongs to the technical field of image processing. The spine three-dimensional reconstruction method comprises the following steps: processing a depth image by adopting light and shadow information of a color image to obtain the processed depth image, then obtaining a back spinous process line based on the color image and the processed depth image, then extracting local symmetry information of the back spinous process line, and finally, carrying out three-dimensional reconstruction on the spine of a human body according to priori knowledge of the spine of the human body. After a human body spine prior model is constructed, a constraint function is constructed by using local symmetry information of a back spinous process line based on the human body spine prior model, finally, after characteristic parameters are determined based on the constraint function, a spine three-dimensional model is accurately obtained according to the characteristic parameters, and the purpose of improving spine reconstruction accuracy is further achieved. Moreover, a processing means taking X-ray films or CT data as a data basis is abandoned, the cost can be remarkably reduced, and meanwhile, the spine three-dimensional reconstruction operation process can be simplified by adopting an image processing mode.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and system for three-dimensional reconstruction of a spine. Background technique [0002] Scoliosis is one of the diseases that seriously endanger the health of human beings, especially children and adolescents. In the general population, the prevalence of idiopathic scoliosis ranges widely, with most literature suggesting that adolescents with a Cobb angle greater than 10° account for 2% to 3% of idiopathic scoliosis. The traditional way to identify spinal deformities is to measure the angle of the scoliosis curve directly on X-ray film, either with a scoliometer, or with the Adam test. However, these traditional methods cannot reflect the complete three-dimensional condition of the human spine. And the accuracy of these measurements is not high, even related to operator proficiency. Therefore, the establishment and application of 3D spine models are very im...

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Problems solved by technology

These methods can reconstruct a high-precision three-dimensional spine model, but because they require X-rays as input, the cost is high, the operation is complicated, and there is radiation damage to the human body, so they are not suitable for scoliosis screening. and spinal status detection during treatment

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