SYSTEM FOR EXTRACTING 3-DIMENSIONAL COORDINATE AND METHOD THEREOF

摘要

PURPOSE: A 3D coordinate extraction system and a method thereof are provided to extract 3D coordinates with a high reliability by using image information obtained through a stereo photographing unit and TOF(Time of Flight) sensor unit. CONSTITUTION: A 3D coordinate extraction system comprises a stereo photographing unit(100), a TOF sensor unit(200), and a controller(400). The stereo photographing unit obtains 3D coordinates of an object based on pixel coordinates respectively comprised in two images after obtaining the two images by photographing each object with two lenses. The TOF sensor unit measures a distance value to the object and obtains the 3D coordinates of the object based on the measured distance value. The controller decides whether the distance value to the measured object by the TOF sensor unit corresponding to the pixel coordinates obtained by the stereo photographing unit is existed or not and computes a disparity value based on the pixel coordinates or distance value according to the decision and obtains the 3D coordinates of the object based on the computed disparity value.