This paper proposed a three-dimensional( 3 D) pose measurement method for a non-cooperative rectangular target based on a time-of-flight( TOF) camera to solve the problem of low precision caused by large errors in extracting pixel level feature points and unstable distance measurements. Firstly,it detected the improved FAST feature points in the grayscale image. Secondly,it computed the 3 D coordinates of the extracted feature points in the camera coordinate system and the object coordinate system. Finally,...