国际光学工程学会
期刊
会议
图书
作者:Per Bergström , Michael Fergusson , Mikael Sjödahl
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.053110-053110SPIE
摘要:A concept for targetless, computer-aided design (CAD)-based, close-range photogrammetry for online shape inspection is introduced. The shape of an object, which is arbitrarily located on a conveyor belt, is to be measured and compared with its nominal shape as defined by a CAD mo...
作者:Davood Khodadad , Emil Hällstig , Mikael Sjödahl
来源:[J].Optical Engineering(IF 0.88), 2013, Vol.52 (10), pp.101912-101912SPIE
摘要:A new method to measure shape by analyzing the speckle movements in images generated by numerical propagation from dual-wavelength holograms is presented. The relationship of the speckle movements at different focal distances is formulated, and it is shown how this carries inform...

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