一种基于CPU的三维超声图像体绘制方法  

CPU-Based Volume Rendering Method for 3D Ultrasound Image

作　　者：易玮玮 陈子轩 徐泽楷 侯文广[1] Yi Weiwei;Chen Zixuan;Xu Zekai;Hou Wenguang(School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

机构地区：[1]华中科技大学生命科学与技术学院,武汉430074

出　　处：《生命科学仪器》2019年第1期32-36,31,共6页Life Science Instruments

基　　金：国家自然科学基金(41371426);武汉市科技计划项目(2016060101010056)

摘　　要：随着三维超声成像的发展和临床应用,三维超声图像体绘制的需求日益明显,光线投射算法在各种体绘制应用中已广泛使用,其绘制效果好,但速度不尽如人意,基于图像处理器(GPU)能大大提高体绘制速度,但是其缺乏良好的可移植性。考虑到目前多数超声机内存空间较大,且不支持GPU加速功能,本文提出了一种仅基于CPU的体绘制算法,利用空间换取时间,以达到在提升绘制速度的同时保证其可移植性。With the development and clinical application of three-dimensional ultrasound imaging, the need of volume rendering is more and more obvious. The ray casting algorithm has been widely used in various application of volume rendering, while its rendering result is great, its time consuming is not satisfactory. Though the image processor(GPU) can greatly improve the speed of volume rendering, it is lack of portability. Considering the fact that the memory space of majority ultrasonic machine at present is large enough and they do not support GPU acceleration, in this paper, a volume rendering algorithm only based on CPU is proposed,which sacrificing memory to improve efficiency, in order to speed up the rendering while ensure the portability.

关 键 词：体绘制 光线投射算法 CPU 内插 

分 类 号：R-39[医药卫生]