Sensors for 3D Imaging: Metric Evaluation and Calibration of a CCD-CMOS Time-of-Flight CameraReportar como inadecuado




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1

DINSE, Politecnico di Torino, Viale Mattioli, 39, 10125, Torino, Italy

2

DEIAFA, Facoltà di Agraria, Università degli Studi di Torino, Via L. da Vinci, 44, 10095 Grugliasco TO, Italy

3

DITAG, Politecnico di Torino, C.so Duca degli Abruzzi, 24, 10129, Torino, Italy





*

Author to whom correspondence should be addressed.



Abstract 3D imaging with Time-of-Flight ToF cameras is a promising recent technique which allows 3D point clouds to be acquired at video frame rates. However, the distance measurements of these devices are often affected by some systematic errors which decrease the quality of the acquired data. In order to evaluate these errors, some experimental tests on a CCD-CMOS ToF camera sensor, the SwissRanger SR-4000 camera, were performed and reported in this paper. In particular, two main aspects are treated: the calibration of the distance measurements of the SR-4000 camera, which deals with evaluation of the camera warm up time period, the distance measurement error evaluation and a study of the influence on distance measurements of the camera orientation with respect to the observed object; the second aspect concerns the photogrammetric calibration of the amplitude images delivered by the camera using a purpose-built multi-resolution field made of high contrast targets. View Full-Text

Keywords: Time-of-Flight camera; range imaging; calibration; systematic errors; CCD-CMOS sensor Time-of-Flight camera; range imaging; calibration; systematic errors; CCD-CMOS sensor





Autor: Filiberto Chiabrando 1, Roberto Chiabrando 2, Dario Piatti 3,* and Fulvio Rinaudo 3

Fuente: http://mdpi.com/



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