Kiyoshi Takamasu

Papers

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About

Kiyoshi Takamasu is a pioneering researcher in precision engineering and optical measurement systems, with a career focused on advancing 3D mechanism calibration and non-contact profile measurement technologies. His most cited work introduces a novel calibration method for 3-degree-of-freedom (DOF) parallel mechanisms, addressing critical challenges in automation, robotics, and 3D positioning—fields where accuracy and repeatability are paramount. This 2003 paper, with 6 citations, remains a foundational reference for engineers developing high-precision manipulators. Takamasu also made early contributions to optical profilometry, proposing a multi-gray-scale pattern projection system in 1993 that significantly improved speed over traditional slit or laser scanning methods. His innovative use of time-series space coding for 3D shape measurement has influenced subsequent work in industrial inspection and quality control. Additionally, his 2000 research on obstacle detection using a Ring Beam System (RBS) for mobile robots—employing a cone mirror, spherical mirror, and CCD camera for triangulation—demonstrates his versatility in applying optical principles to autonomous navigation. With no moving parts, this system offered a robust solution for real-time obstacle avoidance. Takamasu’s work bridges theoretical optics and practical mechatronics, earning him recognition as a key figure in precision measurement and robotic sensing.