Optical tomography in the application of the surface feature extraction

This paper put forwards a new optical tomographic imaging system, which consists of the rotating periscope system and modulating plate with 65 slits. One-dimensional signals which are divided by modulating plate through the rotating periscope system are collected by photon detector. The paper analyzes the principle of filter back projection (FBP), and chooses the filter that fits the system. It verifies the feasibility of this system by the actual simulation. Choose the circular hole and the calibration image as the target image in scanning experiment, in result of finding that the feature of reconstruction result is obvious, but information of edges is fade. This system plays an important role in developing feature extraction of surface.