Guiding 3D coordinate measurement with an integrated video camera

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2 Citations (Scopus)

Abstract

An experimental measurement system for dimensional quality control is described in which laser radar based 3D coordinate measurements are guided to given points using information from video imagery. The system is controlled by a measurement model file that contains the measurement program and the nominal data of the interesting features in the target object. Because the real world objects differ from the nominal model due to, e.g., changes in their shape, dimensions and position, the measurement system must be adaptive. This adaptivity is provided by using video imagery for guiding the 3D coordinate measurements to the position indicated in the measurement program. At the moment the system is capable of finding points that are marked with circular tags and guiding the laser range finder beam into these points. The linearity and repeatability of the image analysis based feature finding system is better than 0.5 mm at 11 m. Tag finding in a 512 by 574 image takes ca. 2.5 second using a low cost frame grabber and a PC.

Original languageEnglish
Title of host publicationVideometrics III
EditorsSabry F. El-Hakim
Pages100-107
Number of pages8
Publication statusPublished - 1 Dec 1994
MoE publication typeA4 Article in a conference publication
EventVideometrics III - Boston, MA, USA
Duration: 2 Nov 19944 Nov 1994

Publication series

SeriesProceedings of SPIE
Number2350

Conference

ConferenceVideometrics III
CityBoston, MA, USA
Period2/11/944/11/94

Fingerprint

Video cameras
cameras
imagery
laser range finders
Range finders
Optical radar
quality control
image analysis
files
optical radar
Image analysis
linearity
Quality control
moments
Lasers
Costs

Cite this

Ailisto, H. J., Mitikka, R., Moring, I., & Kaisto, I. (1994). Guiding 3D coordinate measurement with an integrated video camera. In S. F. El-Hakim (Ed.), Videometrics III (pp. 100-107). Proceedings of SPIE, No. 2350
Ailisto, Heikki J. ; Mitikka, Risto ; Moring, Ilkka ; Kaisto, Ilkka. / Guiding 3D coordinate measurement with an integrated video camera. Videometrics III. editor / Sabry F. El-Hakim. 1994. pp. 100-107 (Proceedings of SPIE; No. 2350).
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Ailisto, HJ, Mitikka, R, Moring, I & Kaisto, I 1994, Guiding 3D coordinate measurement with an integrated video camera. in SF El-Hakim (ed.), Videometrics III. Proceedings of SPIE, no. 2350, pp. 100-107, Videometrics III, Boston, MA, USA, 2/11/94.

Guiding 3D coordinate measurement with an integrated video camera. / Ailisto, Heikki J.; Mitikka, Risto; Moring, Ilkka; Kaisto, Ilkka.

Videometrics III. ed. / Sabry F. El-Hakim. 1994. p. 100-107 (Proceedings of SPIE; No. 2350).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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N2 - An experimental measurement system for dimensional quality control is described in which laser radar based 3D coordinate measurements are guided to given points using information from video imagery. The system is controlled by a measurement model file that contains the measurement program and the nominal data of the interesting features in the target object. Because the real world objects differ from the nominal model due to, e.g., changes in their shape, dimensions and position, the measurement system must be adaptive. This adaptivity is provided by using video imagery for guiding the 3D coordinate measurements to the position indicated in the measurement program. At the moment the system is capable of finding points that are marked with circular tags and guiding the laser range finder beam into these points. The linearity and repeatability of the image analysis based feature finding system is better than 0.5 mm at 11 m. Tag finding in a 512 by 574 image takes ca. 2.5 second using a low cost frame grabber and a PC.

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Ailisto HJ, Mitikka R, Moring I, Kaisto I. Guiding 3D coordinate measurement with an integrated video camera. In El-Hakim SF, editor, Videometrics III. 1994. p. 100-107. (Proceedings of SPIE; No. 2350).