A Quick Algorithm for Filtering Noise from Laser Terrain Image

This paper presents a new algorithm to filter impulse noise from laser terrain image. The algorithm takes three steps to satisfy the laser images on the special requirements of signal holding, adaptive filtering and real-time processing. The first step is to extract and maintain the edge of terrain image, the second step is to detect and smooth gross errors in each filtering window, and the last step is to cycle the filter procedure automatically. The experimental results verify the performance of the algorithm.