CT辅助消化道胶囊内窥镜图像虚拟外翻

CT辅助消化道胶囊内窥镜图像方法的主要目的在于更为直观地提高胶囊内窥镜的小病灶检出率,减少胶囊内窥镜的重复检查次数,减少患者检查费用,提高医生的工作效率.现有的虚拟外翻技术主要有两种,一种是展平法,一种是镜像法.CT辅助消化道胶囊内窥镜虚拟外翻是以镜像法为指导思想对三维肠道模型进行外翻,实验结果证明了这一方法的有效性.三维图像的显示采用了经典的移动立方体的算法.验证完成后,算法通过TI DaVinciDSP异构双核处理器(DM6467)和接口进行加速实现.通过合理分配双核的任务,算法的运算效率得到了很大提高.

CT-assisted virtual eversion for capsule endoscopy images of digestive tract

CT-assisted digestive tract capsule endoscopy image method, as a new approach in the medical image processing technology, was proposed to improve the capsule endoscopy's detection rate of small lesions, reduce times of repeated inspections by the capsule endoscopy, drop the inspection fees of patients, and raise the efficiency of doctors. There are two ways of virtual unfolding in the existing technologies, one is flattening method, and the other one is mirror method. Guided by the mirror method, the eversion was implemented based on the 3D intestinal model. The effectiveness of eversion was proved by the final result. Marching cubes algorithm was used to display the 3D image. After the validation, the proposed algorithm would be speeded up through the TI DaVinci DSP processor (DM6467) and its interface. Reasonable suggestions were given to improve the computing efficiency by the task distribution of the dua-core on the development board. Through reasonably distributing the task of dual-core, the computing efficiency was improved greatly.