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LIDAR (Light Detection and Ranging) is an especially effective tool for acquiring geo-referenced point clouds of urban site. Accurate extraction of elevated features such as building rooftops is vitally important in various applications. However, it is still challenging to determine an accurate rooftop contour from the irregularly distributed LIDAR point clouds. In this paper an efficient LIDAR segmentation...
LE-based methods have been shown to be effective for target detection in HSI. However, they can be slow due to the costly graph construction and eigenvector computation steps. In this paper, we proposed including a step of pre-segmenting an HSI into superpixels prior to dimensionality reduction. Carrying out experiments on an HIS from the SHARE 2012 data campaign, we show that incorporating superpixels...
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