Much noise exists in cloud data due to deviation of system and matching algorithm in photogrammetry.This paper presented an algorithm for scan line cloud data filtering.

• 摘要摄影测量的点云数据通常叠加有多种形式的噪声信号，针对摄影测量中得到的扫描线形式的点云数据，采用形态学算子进行了噪声滤除。