Abstract
With the advancement of structured-light cameras, surgical robots equipped with such cameras have been utilized for lesion localization during surgeries. Achieving precise registration between CT images and point cloud data remains a challenge. This study proposes a registration method for CT images and point cloud data. Firstly, the CT images are converted into a point cloud representation, and Feature Histograms (FPFH) are computed based on the point cloud's normal vectors. Subsequently, the Fast Global Registration (FGR) algorithm is employed to perform coarse registration of the point cloud. Finally, the Iterative Closest Point (ICP) algorithm is utilized for fine registration of the point cloud data. Experimental evaluation is conducted using CT images of a human brain model and point cloud data obtained from a structured-light camera. The results demonstrate a favorable registration performance. The coarse registration facilitated by the FGR algorithm serves as an effective initialization for the ICP algorithm, thereby enhancing the convergence speed and accuracy of the fine registration process.
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Acknowledgments
This research was Supported by the Joint Funds of Guangdong Basic and Applied Basic Research Foundation (2019A1515110261), National Natural Science Foundation of China (Grant No. 52105009), Shenzhen Science and Technology Plan Project (Grant No. KCXFZ20201221173202007), the Key Scientific Research Platforms and Projects of Guangdong Regular Institutions of Higher Education, China, under Grant 2022KCXTD033, the Scientific Research Capacity Improvement Project of Key Developing Disciplines in Guangdong Province, China, under Grant 2021ZDJS084, the Guangdong Natural Science Foundation, China, under Grant 2023A1515012103, the Key Laboratory of Robotics and Intelligent Equipment of Guangdong Regular Institutions of Higher Education, China, under Grant 2017KSYS009, the Innovation Center of Robotics and Intelligent Equipment, China, under Grant KCYCXPT2017006, the Special Projects in Key Fields from the Department of Education of Guangdong Province (2022ZDZX2059), the Dongguan Science and Technology of Social Development Program (20221800905072).
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Chen, W., Song, J., Wang, S., Zhang, Q. (2023). Registration of Structured Light Camera Point Cloud Data with CT Images. In: Yang, H., et al. Intelligent Robotics and Applications. ICIRA 2023. Lecture Notes in Computer Science(), vol 14267. Springer, Singapore. https://doi.org/10.1007/978-981-99-6483-3_50
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DOI: https://doi.org/10.1007/978-981-99-6483-3_50
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