Automatic building change detection through linear feature fusion and difference of Gaussian classification (Conference Presentation)

Daniel Prince; Vijayan K. Asari

doi:10.1117/12.2275553

19 September 2017 Automatic building change detection through linear feature fusion and difference of Gaussian classification (Conference Presentation)

Daniel Prince, Vijayan K. Asari

Author Affiliations +

Proceedings Volume 10403, Infrared Remote Sensing and Instrumentation XXV; 104030M (2017) https://doi.org/10.1117/12.2275553
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

Many applications in infrastructure planning and maintenance are currently aided by the collection of aerial image data and manual examination by human analysts. The increasing availability and quality of this image data presents an opportunity for computer vision and machine learning techniques to aid in infrastructure planning and maintenance. Due to the immense effort required for human analysts to view and organize the data, there is great demand for computer automation of these tasks. A strategy for detecting changes in known building regions in multi-temporal visible and near-infrared imagery based on a linear combination of independent features and a difference of Gaussian based classification approach is being developed. Initial building candidates are discovered using a linear combination of features representing vegetation intensity, image texture, shadow intensity and distance from known road areas. The resulting building candidates are classified by shape using a unique difference of Gaussians technique and a standard Support Vector Machine classifier. Building regions reported in the reference data set from the prior observation time are revisited using the same classification approach to minimize the number of false positive detections from the feature fusion strategy. The effectiveness of the proposed technique is evaluated on five wide area real-world images. Ground truths for the building regions in all five images are manually created and used to measure the accuracy of the building detection and change detection results. Detection statistics and visualized results of the proposed algorithm are presented, and it is observed that the results are promising compared to the manually created ground truth.

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Daniel Prince and Vijayan K. Asari "Automatic building change detection through linear feature fusion and difference of Gaussian classification (Conference Presentation)", Proc. SPIE 10403, Infrared Remote Sensing and Instrumentation XXV, 104030M (19 September 2017); https://doi.org/10.1117/12.2275553

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KEYWORDS

Buildings

Image fusion

Image quality

Machine vision

Remote sensing

Vegetation

Computer vision technology

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