4D Real-Time Cardiac MDCT Image Volume Rendering Method Research Based On GPU Texture Mapping
A low-injury, high success rate, and no side effectstreatment for curing heart physical defects is urgently needed in the medical field. Although with electrocardiographically (ECG)gated technology, the timeline information of heartbeat can becollected by Multi-detector Computed Tomography (MDCT), thetraditional CPU-based volume rendering methods can not meetthe dynamic cardiac real-time reconstruction. This paperpresents a GPU texture mapping based dynamic cardiac 4D realtime rendering method. It uses ECG-gated MDCT acquiringcardiac real-time volume data sets, each of which called onetime-phased data and mapped to a GPU texture unit. Thematerial and lighting properties, color and opacity data,computed by GPU, are also mapped to other two texture units.Then through the fragment programs, these textures are lookedup, and the result pixel color is received. Volume textures switchare controlled by the time interval from ECG-gated 4D real-timecardiac data acquisition. Experimental results show that themethod we presented can achieve a dynamic cardiac real-timerendering; quality is better, and speed faster enough to meetclinical needs.
FENG Chaolu YANG Jinzhu ZHAO Dazhe FENG Chaolu LIU Jiren
Key Laboratory of Medical Image Computing of Ministry of Education Northeast University Shenyang, Ch School of Information Science and Engineering Northeast University Shenyang, China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）