Local Regularity-Driven City-Scale Facade Detection from Aerial Images

Jingchen Liu, Yanxi Liu
2014 2014 IEEE Conference on Computer Vision and Pattern Recognition  
We propose a novel regularity-driven framework for facade detection from aerial images of urban scenes. Giniindex is used in our work to form an edge-based regularity metric relating regularity and distribution sparsity. Facade regions are chosen so that these local regularities are maximized. We apply a greedy adaptive region expansion procedure for facade region detection and growing, followed by integer quadratic programming for removing overlapping facades to optimize facade coverage. Our
more » ... ade coverage. Our algorithm can handle images that have wide viewing angles and contain more than 200 facades per image. The experimental results on images from three different cities (NYC, Rome, San-Francisco) demonstrate superior performance on facade detection in both accuracy and speed over state of the art methods. We also show an application of our facade detection for effective cross-view facade matching.
doi:10.1109/cvpr.2014.489 dblp:conf/cvpr/LiuL14 fatcat:roj2egg4iffmnhovydswyvojg4