https://community.intel.com/t5/Intel-Integrated-Performance/3D-reconstruction/m-p/912503#M14396 <P>Currently, there are no such functions in OpenCV.</P> <P>Vadim</P> Fri, 15 Sep 2006 17:50:03 GMT Intel_C_Intel 2006-09-15T17:50:03Z https://community.intel.com/t5/Intel-Integrated-Performance/3D-reconstruction/m-p/912502#M14395 I use cv<A name="decl_cvCalibrateCamera2">CalibrateCamera2</A>() to extract intrinsic and extrinsic parameters and I want to use them to convert 2D image coordinates to 3D world coordinates,OpenCV has a function cv<A name="decl_cvProjectPoints2">ProjectPoints2</A>() to projects 3D points to image plane, doesOpenCV has a function thatget 3D points from 2D image plane, or how to use the exist functions in OpenCV to do this work. Thanks! Tue, 05 Sep 2006 18:19:06 GMT https://community.intel.com/t5/Intel-Integrated-Performance/3D-reconstruction/m-p/912502#M14395 tang1102 2006-09-05T18:19:06Z https://community.intel.com/t5/Intel-Integrated-Performance/3D-reconstruction/m-p/912503#M14396 <P>Currently, there are no such functions in OpenCV.</P> <P>Vadim</P> Fri, 15 Sep 2006 17:50:03 GMT https://community.intel.com/t5/Intel-Integrated-Performance/3D-reconstruction/m-p/912503#M14396 Intel_C_Intel 2006-09-15T17:50:03Z