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Sensor for Simultaneous High Accurate Measurements of Three-Dimensional Points

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This paper presents a solution to maximize the precision in obtaining simultaneous measurements of multiples points from the environment comprised of a system consisting of a CMOS camera detector and a laser emitter. To obtain a high accuracy 3D coordinates measurement system, it is first necessary to make a high precision calibration of the CMOS camera-laser sensor. We propose a sensor and its calibration method that may be used in precision metrology, in determination of objects geometry, and in the positioning of a mobile system. In our system, the camera is equipped with a lens of short focal length, in order to obtain a great field of view in short distances. The laser is equipped with an optic in order to emit a structured light plane. In this paper, we present the general scheme of the system, the utilized mathematical model, and the results of the calibrations for a specific sensor.
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Document Type: Research Article

Publication date: 01 December 2006

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  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
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