[2] P.LOVENITTI,William THOMPSON,Manmohan SINGH.Three-dimensional measurement using a single image[J].Optical Engineering,1996,35(5):1496-1502.
[4] Alf D.PETTERSEN.System for point-by-point measuring of spatial coordinate[P].US Patent:6166809,2000-12-26.
[5] William J.WOLFE,Donald MATHIS,Cheryl Weber SKLAIR,et al.The perspective view of three points[J].IEEEE Transactions on Pattern Analysis and Machine Intelligence,1991,13(1):67-73.