Method and device for extracting center line of tubular target

Abstract

The invention is applicable to the field of computer technologies, and provides a method and device for extracting a center line of a tubular target. The method comprises the steps of preprocessing an image of a tubular target center line to be extracted to obtain a corresponding enhanced image, acquiring a gradient vector flow field of the enhanced image, acquiring deformation force parameter corresponding to an initial ridge line segment list according to the gradient vector flow field, extracting tubular target ridge points from the enhanced image, generating the initial ridge line segment list, building a regularized open curve deformation model, performing deformation and processing on a ridge line segment in the initial ridge line segment list according to the model before a deformation ending condition is met to obtain a corresponding tubular target center line segment, updating the initial ridge line segment list according to ridge line segments traversed in the deformation process, and generating a center line of the tubular target according to the tubular target center line segments when the deformation ending condition is met, thereby optimizing the deformation process of the ridge line segments, reducing the deformation time of the ridge line segments and improving the extraction accuracy and the extraction rate of the center line.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a method and a device for extracting the centerline of a tubular target. Background technique [0002] The quantitative extraction of centerline is of great significance for describing the characteristics of tubular objects and the development of virtual reality and augmented reality technology. Taking the computer-aided diagnosis and treatment of medical imaging as an example, the extraction of vascular centerline can effectively analyze the vascular structures and lesions of interest, then judge the luminal injury, establish the interventional operation path, and provide necessary help and guidance for the treatment of cardiovascular and cerebrovascular diseases. [0003] There are many algorithms for extracting the centerline of tubular targets in noise images, and the commonly used methods are based on the shortest path, method based on topology refinement, meth...

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Problems solved by technology

[0005] The object of the present invention is to provide a method and device for extracting the centerline of a tubular target, aiming at solving the problems of long deformation time, difficulty in controlling the deformation process and low deformation precision of the existing open snake deformation model, which lead to the accuracy of extracting the centerline Problems with low and low extraction rates

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