Feature extraction with LIDAR data and aerial images

Jianhua Mao; Yanjing Liu; Penggen Cheng; Xianhua Li; Qihong Zeng; Jing Xia

doi:10.1117/12.712927

28 October 2006 Feature extraction with LIDAR data and aerial images

Jianhua Mao, Yanjing Liu, Penggen Cheng, Xianhua Li, Qihong Zeng, Jing Xia

Proceedings Volume 6419, Geoinformatics 2006: Remotely Sensed Data and Information; 64190P (2006) https://doi.org/10.1117/12.712927
Event: Geoinformatics 2006: GNSS and Integrated Geospatial Applications, 2006, Wuhan, China

Abstract

Raw LIDAR data is a irregular spacing 3D point cloud including reflections from bare ground, buildings, vegetation and vehicles etc., and the first task of the data analyses of point cloud is feature extraction. However, the interpretability of LIDAR point cloud is often limited due to the fact that no object information is provided, and the complex earth topography and object morphology make it impossible for a single operator to classify all the point cloud precisely 100%. In this paper, a hierarchy method for feature extraction with LIDAR data and aerial images is discussed. The aerial images provide us information of objects figuration and spatial distribution, and hierarchic classification of features makes it easy to apply automatic filters progressively. And the experiment results show that, using this method, it was possible to detect more object information and get a better result of feature extraction than using automatic filters alone.

Citation Download Citation

Jianhua Mao, Yanjing Liu, Penggen Cheng, Xianhua Li, Qihong Zeng, and Jing Xia "Feature extraction with LIDAR data and aerial images", Proc. SPIE 6419, Geoinformatics 2006: Remotely Sensed Data and Information, 64190P (28 October 2006); https://doi.org/10.1117/12.712927

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