National Natural Science Foundation of China [40671078]
机构署名：
本校为第一且通讯机构
院系归属：
城市与环境科学学院
摘要：
3D reconstruction based on high-level features, such as line and plane, is an important development trend in Digital Photogrammetry and Computer Vision. A novel method for extracting stratight line is presented, which can be illustrated as follows. Firstly, image is preprocessed by Wallis filtering that is used to enhance the image contrast and reduce the noise, so it is easy to extract more lines. Secondly, Laplacian of Gaussian operator (LOG) algorithm is implemented to locate the edge by detecting discontinuity variation in image. Thirdly, feature grouping (perceptual organization) and line...
