Digital reconstruction radiograph rendering algorithm based on CUDA.

In order to improve the speed and quality of reconstruction image, making use of multi-core parallel of GPU based on CUDA, this paper actualized three steps of ray-casting which was geometric transform, scene traversal, rendering through programmable graphics hardware, it could reduce the simulation time required. By 3D texture, synchronous traversing mechanism of ray thread element and opacity early termination, it could reduce the time required for the final simulation results without affecting the imaging quality. The experimental results show that, the algorithm can complete reconstruction of digital radiography image of high speed and high quality. [ABSTRACT FROM AUTHOR]