Application of Liquid crystal light valve in robot vision system

The robot vision system is designed basing on optical information processing 4f system and photoelectricity information technology. It is applied successfully in the Fourier transform and wavelet transform of optical image. Compared with computer software or special integrated circuit in image processing, the processing speed of this system on optical image is greatly improved. Liquid crystal light valve is used in this system, so the transform from incoherent light to coherent light is realized. And the optical system design is only required to adapt to the demand of coherent light, so the system will not be restricted by the demand of coherent light when it is applied in the robot vision system. At the same time, it has the following advantages: low cost, parallel processing and large capacity. So the performance of optical system is improved. This system can be applied extensively in the fields of feature extraction on object edge, image filtering, image compression and image correlation identification. The experimental result indicates that the program of this robot vision system is feasible and it has flexible structure, wide scope of application and ideal effect. As a result, there is extensive application prospect in the fields of imaging, optical calculating, remote sensing, security, military affairs and so on.