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	Pipeline Architecture and Parallel Computation-Based Real-Time Stereovision Tracking System for Surgical Navigation
	Zhou P (Zhou Ping) ; Liu Y (Liu Yue) ; Wang YT (Wang Yongtian)
	2009
会议名称	26th ieee international instrumentation and measurement technology conference
会议日期	2009
会议地点	singapore, singapore
关键词	Parallel processing
通讯作者	zhou, p, beijing inst technol, ctr res optoelect informat technol & color engn, beijing 100081, peoples r china. 电子邮箱地址: savagezp@hotmail.com
英文摘要	this paper studies the development of a real-time stereovision system to track multiple infrared markers attached to a surgical instrument. multiple stages of pipeline in field-programmable gate array (fpga) are developed to recognize the targets in both left and right image planes and to give each target a unique label. the pipeline architecture includes a smoothing filter, an adaptive threshold module, a connected component labeling operation, and a centroid extraction process. a parallel distortion correction method is proposed and implemented in a dual-core dsp. a suitable kinematic model is established for the moving targets, and a novel set of parallel and interactive computation mechanisms is proposed to position and track the targets, which are carried out by a cross-computation method in a dual-core dsp. the proposed tracking system can track the 3-d coordinate, velocity, and acceleration of four infrared markers with a delay of 9.18 ms. furthermore, it is capable of tracking a maximum of 110 infrared markers without frame dropping at a frame rate of 60 f/s. the accuracy of the proposed system can reach the scale of 0.37 mm rms along the x- and y-directions and 0.45 mm rms along the depth direction (the depth is from 0.8 to 0.45 m). the performance of the proposed system can meet the requirements of applications such as surgical navigation, which needs high real time and accuracy capability.; submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-04-26t14:23:38z no. of bitstreams: 1 pipeline architecture and parallel computation-based real-time stereovision tracking system for surgical navigation.pdf: 672073 bytes, checksum: 8afca4284862c3f5d8f97371117b4194 (md5); submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-04-26t14:23:38z no. of bitstreams: 1 pipeline architecture and parallel computation-based real-time stereovision tracking system for surgical navigation.pdf: 672073 bytes, checksum: 8afca4284862c3f5d8f97371117b4194 (md5); ieee instrumentat & measurement soc.; ieee singapore sect.; singapore polytechn.; 国内
收录类别	CPCI（ISTP）
合作状况	国内
会议主办者	ieee instrumentat & measurement soc.; ieee singapore sect.; singapore polytechn.
学科主题	光电子学
语种	英语
ISSN号	0018-9456
内容类型	会议论文
源URL	[http://ir.semi.ac.cn/handle/172111/11194]
专题	半导体研究所_光电系统实验室
推荐引用方式 GB/T 7714	Zhou P ,Liu Y ,Wang YT . Pipeline Architecture and Parallel Computation-Based Real-Time Stereovision Tracking System for Surgical Navigation[C]. 见:26th ieee international instrumentation and measurement technology conference. singapore, singapore. 2009.

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