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Automatic in-line inspection of shape based on photogrammetry
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Luleå, Sweden.
Xtura AB, Kungsbacka, Sweden.
Xtura AB, Kungsbacka, Sweden.
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för produktionssystem (PS). (PTW)ORCID-id: 0000-0001-6933-375X
Vise andre og tillknytning
2016 (engelsk)Inngår i: The 7th International Swedish Production Symposium, SPS16, Conference Proceedings: 25th – 27th of October 2016, Lund: Swedish Production Academy , 2016, s. 1-9Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

We are describing a fully automatic in-line shape inspection system for controlling the shape of moving objects on a conveyor belt. The shapes of the objects are measured using a full-field optical shape measurement method based on photogrammetry. The photogrammetry system consists of four cameras, a flash, and a triggering device. When an object to be measured arrives at a given position relative to the system, the flash and cameras are synchronously triggered to capture images of the moving object.From the captured images a point-cloud representing the measured shape is created. The point-cloud is then aligned to a CAD-model, which defines the nominal shape of the measured object, using a best-fit method and a feature-based alignment method. Deviations between the point-cloud and the CAD-model are computed giving the output of the inspection process. The computational time to create a point-cloud from the captured images is about 30 seconds and the computational time for the comparison with the CAD-model is about ten milliseconds. We report on recent progress with the shape inspection system.

sted, utgiver, år, opplag, sider
Lund: Swedish Production Academy , 2016. s. 1-9
Emneord [en]
Automatic, full-field, in-line, photogrammetry, shape inspection, single-shot
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-10249OAI: oai:DiVA.org:hv-10249DiVA, id: diva2:1053132
Konferanse
7th International Swedish Production Symposium, SPS16, Lund, Sweden, October 25–27, 2016
Tilgjengelig fra: 2016-12-08 Laget: 2016-12-08 Sist oppdatert: 2022-11-08bibliografisk kontrollert

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Runnemalm, AnnaOttosson, Mattias

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