Rendering and Transmission Method based on Model Resolution Expression and User Action Prediction

The rapid rendering of complex 3D models based on web is a difficult problem, mainly because the rendering ability of web is limited, and the transmission of complex 3D models on the network requires huge bandwidth. In order to solve the above problems, according to the action characteristics of users when browsing complex 3D models, we first predict the viewpoint from the characteristics of users, at the same time, the frequently used viewpoints are pre drawn in the server section, and the pre drawn viewpoint images are transmitted to the client. For viewpoint movement, a rendering and transmission method based on model resolution expression and user action prediction is proposed. When the user moves the viewing angle, according to its moving speed, the multi level of detail technology is used to reduce the rendering quality of some objects that are not easy to be detected by the human eye and reduce the volume of the rendered image, so as to reduce the network load. Considering the influence of network delay on mobile speed detection, this chapter will use action prediction method to improve the accuracy of mobile speed detection.