Development And Implementation Of A Temporomandibular Joint Movement Visualization System Based On CBCT Images And Stereo Vision Technology

The temporomandibular joint is located on the lower surface of the skin,and its structure is relatively complex,but its movement process is an important reference for judging related diseases.Because the existing common detection methods for the temporomandibular joint are mainly static imaging methods,it is impossible to obtain the temporomandibular joint.The real motion process of the mandibular joint,and the condyle trajectory,which is specially used to measure the motion trajectory of the condyle position,is more complicated to operate and can only obtain a single-point trajectory and cannot obtain the overall motion state.Therefore,it is necessary to design an accurate and efficient,easy-to-use detection methods to reconstruct the movement of the temporomandibular joint.In this paper,the development and realization of the temporomandibular joint movement visualization system is completed by combining the temporomandibular joint movement data collected by binocular vision technology and the precise anatomical data of CBCT images through multi-modal data fusion.The research team has carried out previous related research.Based on the previous research,this article improved the binocular camera platform and the marking frame;by designing the tracking and recognition method of the mark,reconstructing the movement matrix of the mark,and using the segmentation method based on region growth.The upper and lower jaws are transformed by calculating the center coordinates of the metal ball in the binocular coordinate system and the CBCT coordinate system and interactively matching the coordinate system.The marked motion matrix is transformed to the CBCT coordinate system and combined with the segmented upper and lower jaws to complete the temporomandibular movement visualization process of the joints.Finally,in order to improve the efficiency of the overall processing process,a software platform with a visual interface is designed.All the operation processes can be completed in the software platform.This article combines binocular vision technology and CBCT imaging to construct a temporomandibular movement acquisition system.The designed system has high accuracy,good integration,convenient operation and high degree of visualization,which will lay the foundation for subsequent related research on temporomandibular joint diseases.