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题名: Robust and Fast Initialization for Intensity-Based 2D/3D Registration
作者: Shao ZZ(邵振洲); Han JD(韩建达); Liang W(梁炜); Tan JD(谈金东); Guan, Yong
作者部门: 机器人学研究室
刊名: ADVANCES IN MECHANICAL ENGINEERING
ISSN号: 1687-8132
出版日期: 2014
卷号: 2014, 页码:1-12
收录类别: SCI
产权排序: 2
摘要: Intensity-based 2D/3D registration is a key technique using digitally reconstructed radiographs (DRRs) to register the preoperative volume to the patient setup during the operation. Although DRR-based method provides a high accuracy, the small capture range hinders its clinical use. In this paper, such problem was addressed by a robust and fast initialization method using a two-level scheme including automatic tracking-based initialization (Level I) and multiresolution estimation based on central-slice theorem and phase correlation (Level II). It provided almost optimal transformation parameters for intensity-based registration. Experiments using a public gold standard data set and a spinal phantom have been conducted. The mean target registration error (mTRE) was limited in the range from 2.12 mm to 22.57 mm after tracking-based initialization. The capture range based on level II only was 20.1 mm and the mTRE in this capture range was 2.92 +/- 2.21 mm. The intensity-based 2D/3D registration using proposed two-level initialization achieved the successful rate of 84.8% with the average error of 2.36 mm. The experimental results showed that the proposed method yielded the robust and fast initialization for intensity-based registration methods. In a similar way, it can be applied to other registration methods to enable a larger capture range and robust implementation.
语种: 英语
WOS记录号: WOS:000340112800001
WOS标题词: Science & Technology ; Physical Sciences ; Technology
类目[WOS]: Thermodynamics ; Engineering, Mechanical
关键词[WOS]: IMAGE-GUIDED INTERVENTIONS ; FLUOROSCOPIC X-RAY ; CT ; ALGORITHM ; TRACKING ; STRATEGY ; SYSTEM
研究领域[WOS]: Thermodynamics ; Engineering
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/15265
Appears in Collections:机器人学研究室_期刊论文

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