CT Virtual Reality Teaching System Based On Unity3D Platform

Virtual Reality(VR)is based on computer technology and generates a three-dimensional realistic virtual environment through digital image processing technology.An emerging technology that allows users to experience and feel things in a virtual environment.At present,in the teaching of computed tomography(CT)medical imaging in our country,because of its large size,complex structure and expensive price,CT can only be taught in theory or guided by teachers,which leads to students' lack of practical operation ability and low learning efficiency.Therefore,using VR technology to carry out practical teaching can save costs on the one hand,and enhance students' interest in learning and improve learning efficiency on the other hand.This system is a CT virtual reality teaching system based on Unity3 D platform.The system can visually demonstrate the internal structure of CT and the complete operation process..This paper describes the needs analysis of the CT virtual reality teaching system,including user requirements,system model requirements,system functional requirements and VR interaction requirements.Selecting the development tools that meet the requirements of this system,proposed the method of model making and optimization,completed the design of the main functional modules of the system,and used the key technologies such as highlight and Dotween plug-in and collision detection to realize the functions of the main modules of the system.Finally,the system is packaged and posted on the relevant website.The system function module mainly includes scene building module,user interface display module,structure and principle module,detection result display module and theoretical evaluation module.After the system has passed functional tests and compatibility tests,it has met the expected requirements.The system can run on the PC or publish on Web.Users can log in to the system for operation and learning.The system can also be combined with HTC VIVE hardware for human-computer interaction of the scene to conduct practical operation training.