An accuracy checker and a method for evaluating the accuracy of three-dimensional image reconstruction

Abstract

The invention discloses a precision calibrator and a method for evaluating the accuracy of three-dimensional image reconstruction. The precision calibrator is made of X-ray transparent material, and a number of calibration points and four coordinate points are dispersedly distributed in it. The four coordinate points The points include a reference point, the lines connecting the other three coordinate points and the reference point are perpendicular to each other, and the distances between the other three coordinate points and the reference point are not equal. It also provides a three-dimensional image reconstruction accuracy evaluation method based on the accuracy checker. The present invention can quickly and accurately analyze the three-dimensional reconstruction accuracy of the C-arm X-ray machine, which is a high-precision evaluation method for the C-arm X-ray machine. The project requirements provide a basis for model selection, and provide a basis for theoretical data analysis for the correction and improvement of the three-dimensional image reconstruction accuracy of the C-arm X-ray machine.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an accuracy checker and a three-dimensional image reconstruction accuracy evaluation method. Background technique [0002] In recent years, C-arm X-ray machines have been widely used in the field of medical aided diagnosis, especially in surgical navigation robot systems. However, the models and brands of C-arm X-ray machines on the market are different, and the corresponding C-arm machine manufacturers failed to give very detailed instructions on the actual reconstruction accuracy that the C-arm X-ray machine can achieve, resulting in the C-arm X-ray machine. The selection of the C-arm X-ray machine caused great difficulties; and under the high demand for the image accuracy of the C-arm X-ray machine, it is necessary to further correct and improve the three-dimensional image accuracy of the C-arm X-ray machine. At this time, a detailed analysis of the three-dimensional image acc...

AI Technical Summary

Problems solved by technology

However, the models and brands of C-arm X-ray machines on the market are different, and the corresponding C-arm machine manufacturers failed to give very detailed instructions on the actual reconstruction accuracy that the C-arm X-ray machine can achieve, resulting in the C-arm X-ray machine. The selection of the C-arm X-ray machine caused great difficulties; and under the high demand for the image accuracy of the C-arm X-ray machine, it is necessary to further correct and improve the three-dimensional image accuracy of the C-arm X-ray machine. At this time, a detailed analysis of the three-dimensional image accuracy of the C-arm X-ray machine is the prerequisite for high-precision compensation work and provides important data support for subsequent accuracy correction work

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