GPU를 이용한 치과용 의료영상 시스템 설계 및 구현

Abstract

Volume rendering is important 3D volume data visualization technique for medical imaging system. Due to the recent advances of computer hardware, th field of volume rendering are getting wider. Multi-planar reformatting(MPR) is a volume rendering technique which generates images of sectional planes users define, so that it is essential for medical imaging system. For diagnosis, users require to place plural planes on a single dataset and to enable an individual and easy control for each plane. In this paper, we analyze all of user's demands and propose an coordinate system architecture for the effective system control. MIP(Maximum Intensity Projection) is a volume rendering technique which extracts maximum values from volume data and an important medical imaging technique. MIP using the ray casting algorithm produces high-quality images but takes much time because of lots of operations. In this paper, we accelerate MIP by using GPGPU(General-purpose computing in Graphic Process Unint) technique. Additionally, we propose acceleration methods; block leaping and initial value estimation. In results, this study demonstrate that suggested systems are applicable to dental medical imaging system smoothly and faster than previous rendering system.