This paper introduces a practical measuring system, which, under the control of micro-computer, can measure the surface roughness of casual position in special long deep-bore (includingblind bore).

Implementation of parallel CRC approach of arbitrary bit length and encoder and decoder;

A novel calibration method to determine all the primitive parameters of the stereo visual sensor with free-position planar pattern is proposed.

In this paper,we take sphere for instance,researching on how to realize local texture mapping at arbitrary location by applying stereoscopic projection algorithm and better purpose of texture mapping is obtained.