Abstract

Info

Title:: 3D image reconstruction of coronary angiography based on improved ray-casting volume rendering algorithm

Author(s):: WANG Yifu1; WANG Yu1; XING Suxia1; WANG Yining2; YI Yan2; 1. School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China 2. Peking Union Medical College Hospital, Beijing 100730, China

Keywords:: Keywords: ray-casting volume rendering algorithm coronary angiography trilinear interpolation re-sampling empty voxel

Abstract:: Abstract: The traditional ray-casing volume rendering algorithm can achieve good results in image reconstruction, but the slow operation speed limits its wide application. Based on an improved ray-casting volume rendering algorithm, a method for 3D image reconstruction of coronary angiography is proposed to ensure image quality and improve real-time interactivity during 3D image reconstruction. In the proposed method, the values of the detected original data points are used to simplify the complexity of trilinear interpolation during re-sampling, and the efficiency of the algorithm is further improved by combining with Chebyshev empty voxel jumping method. Experimental results show that the proposed algorithm can improve the calculation speed while ensuring the image quality in 3D image reconstruction of coronary angiography.