Three-dimensional level curves scanning based on intersection between laser lines

Tadeusz Sliwa; Hamid Tairi; Yvon Voisin; Alain Diou

doi:10.1117/12.499772

30 May 2003 Three-dimensional level curves scanning based on intersection between laser lines

Tadeusz Sliwa, Hamid Tairi, Yvon Voisin, Alain Diou

Proceedings Volume 5144, Optical Measurement Systems for Industrial Inspection III; (2003) https://doi.org/10.1117/12.499772
Event: Optical Metrology, 2003, Munich, Germany

Abstract

A dimensional measurement system also doing a tracking of objects movements is presented here. Especially, the method presented here permits to directly get the level curves of an object. It's an extension of the measurement methods by collimation, coupled with the use of a structured lighting with signature, formed of several luminous plans competing in a unique line. This line defines a set of points of the space at a fixed distance Z₀ of the measure head. The place of the points of the object where the lighting is reduced to a unique line is the searched level curve. The introduction of an asymmetry in the structure of the lighting permits to know the way as well as an approximate value of the value of the gap to the level curve of the position of the point of the illuminated object. The realized experiences permit to place the performances of such a system, and give the field of future applications.

Citation Download Citation

Tadeusz Sliwa, Hamid Tairi, Yvon Voisin, and Alain Diou "Three-dimensional level curves scanning based on intersection between laser lines", Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); https://doi.org/10.1117/12.499772

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KEYWORDS

Light sources and illumination

Fourier transforms

Collimation

Cameras

Head

Image processing

3D scanning

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