Virtual projective shape matching in targetless CAD-based close-range photogrammetry for efficient estimation of specific deviations
作者: Per BergströmMichael FergussonMikael Sjödahl
作者单位: 1Luleå University of Technology
2Viospatia AB
刊名: Optical Engineering, 2018, Vol.57 (5), pp.053110-053110
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.57.5.053110
关键词: Computer-aided designClose-rangeMatchingOnlinePhotogrammetryShape
原始语种摘要: 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 model. For most manufactured objects, deviations are only measured at a few given comparison points. These deviations can be estimated using local photogrammetry based on a priori geometrical information given by the CAD model and the comparison points. Our method results in faster output with higher precision, because we do not generate a shape representation of the entire measured object using typical photogrammetric methods. Images depicting the object from convergent angles are captured by an array of cameras in...
全文获取路径: SPIE  (合作)

  • projective 投射的
  • shape 形状
  • CAD Character Assemble/Disassemble
  • matching 匹配
  • photogrammetry 摄影测量学
  • efficient 有用的
  • close 接近
  • aided 半自动
  • estimation 估计
  • range 射程