Real-time interactive naked-eye 3D display method based on cuda parallel computing framework

Abstract

The invention provides a real-time interactive naked-eye 3D display method based on the CUDA parallel computing framework. By reading the CT sequence image, setting the drawing threshold, and using the MarchingCube algorithm to generate surface triangle patch data; setting the number of viewpoints and virtual cameras according to the usage scene Bit, generate a single-angle rendering scene; use the OpenInventor open source library to implement scene rendering for each scene with different viewpoints; realize CUDA parallel pixel fusion algorithm; realize interactive interface. The method can perform stereo rendering for medical three-dimensional CT data. Based on the CUDA parallel computing framework, the present invention realizes real-time interactive auto-stereoscopic display, can perform operations such as translation, rotation, and scaling on display target data according to user instructions, and can complete real-time rendering and drawing.

Description

technical field [0001] The invention relates to a real-time interactive naked-eye 3D display method based on a CUDA parallel computing framework. Background technique [0002] 3D visualization of medical images, as the process of volume data field visualization, is the focus of research in the field of scientific visualization, and it is also the most successful field of current research and application. After recent years of development, it has developed from auxiliary diagnosis to an important means of auxiliary treatment, and will penetrate into all fields of medicine. [0003] At present, doctors need to rely on medical imaging to make judgments in the process of diagnosing patients. At the same time, the two-dimensional images obtained at this stage cannot directly represent the conditions of tissues and organs, and require doctors to restore with the help of imagination, which is highly subjective, and some information cannot be accurately obtained by doctors. This i...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a real-time interactive naked-eye 3D display method based on the CUDA parallel computing framework. Based on the three-dimensional visualization technology of medical images and CUDA parallel computing technology, it is developed for the free stereoscopic display system of inclined lenticular lenses, and realizes medical treatment through multi-view fusion. Free stereoscopic display of images; using multi-texture mapping technology to complete the rendering, the present invention can perform free stereoscopic display of three-dimensional medical CT images, and at the same time perform real-time refresh rendering according to user operations, to meet the needs of users for real-time interactive observation of observation objects, and solve the problem of The existing technology is cumbersome to operate, and the playback content cannot be changed in real time, etc.

Images