Title
GeoSay: A Geometric Saliency for Extracting Buildings in Remote Sensing Images.
Abstract
Automatic extraction of buildings in remote sensing images is an important but challenging task and finds many applications in different fields such as urban planning, navigation and so on. This paper addresses the problem of buildings extraction in very high-spatial-resolution (VHSR) remote sensing (RS) images, whose spatial resolution is often up to half meters and provides rich information about buildings. Based on the observation that buildings in VHSR-RS images are always more distinguishable in geometry than in texture or spectral domain, this paper proposes a geometric building index (GBI) for accurate building extraction, by computing the geometric saliency from VHSR-RS images. More precisely, given an image, the geometric saliency is derived from a mid-level geometric representations based on meaningful junctions that can locally describe geometrical structures of images. The resulting GBI is finally measured by integrating the derived geometric saliency of buildings. Experiments on three public and commonly used datasets demonstrate that the proposed GBI achieves the state-of-the-art performance and shows impressive generalization capability. Additionally, GBI preserves both the exact position and accurate shape of single buildings compared to existing methods.
Year
DOI
Venue
2018
10.1016/j.cviu.2019.06.001
Computer Vision and Image Understanding
Keywords
Field
DocType
Building detection,Geometric saliency,Junction,Remote sensing image
Pattern recognition,Salience (neuroscience),Computer science,Remote sensing,Artificial intelligence,Image resolution
Journal
Volume
Issue
ISSN
186
1
1077-3142
Citations 
PageRank 
References 
0
0.34
11
Authors
5
Name
Order
Citations
PageRank
Gui-Song Xia179864.99
Jin Huang22910.71
Nan Xue3439.48
Qikai Lu4373.92
Xiao Xiang Zhu5896103.00