基于计算机视觉技术的胶囊内窥镜定位

Capsule endoscope localization based on computer vision technique.

作者信息

Liu Li, Hu Chao, Cai Wentao, Meng Max Q H

机构信息

Shenzhen Institute of Advanced Integration Technology, Chinese Academy of Sciences/Chinese University of Hong Kong, China.

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:3711-4. doi: 10.1109/IEMBS.2009.5334803.

DOI:10.1109/IEMBS.2009.5334803

PMID:19965009

Abstract

To build a new type of wireless capsule endoscope with interactive gastrointestinal tract examination, a localization and orientation system is needed for tracking 3D location and 3D orientation of the capsule movement. The magnetic localization and orientation method produces only 5 DOF, but misses the information of rotation angle along capsule's main axis. In this paper, we presented a complementary orientation approach for the capsule endoscope, and the 3D rotation can be determined by applying computer vision technique on the captured endoscopic images. The experimental results show that the complementary orientation method has good accuracy and high feasibility.

摘要

为构建一种具有交互式胃肠道检查功能的新型无线胶囊内窥镜，需要一个定位和定向系统来跟踪胶囊运动的三维位置和三维方向。磁定位和定向方法仅产生5个自由度，但缺少沿胶囊主轴的旋转角度信息。在本文中，我们提出了一种用于胶囊内窥镜的互补定向方法，通过对捕获的内窥镜图像应用计算机视觉技术可以确定三维旋转。实验结果表明，该互补定向方法具有良好的准确性和高度的可行性。