Advanced Diagnosis of Large Environment based on 3D Laser Scanning

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As the performance of terrestrial laser scanner improves, it has been widely used in many fields, such as industrial plant, civil engineering, and forest management. In this work, we focus on concrete infrastructure which need high cost for their monitoring and maintenance, and forest which is the most important target in considering an environmental problem. We developed the new method for quantitatively evaluating level of damage of concrete bridges caused by scaling based on terrestrial laser scanning. We also developed the several techniques, such as scan segmentation, trunk extraction, and ground surface estimation, which are required in biomass estimation of forest from its scans.