{"repo":"bi0m3trics/spanner","free":true,"listed":false,"github":"https://github.com/bi0m3trics/spanner","clone":"git clone https://github.com/bi0m3trics/spanner.git","description":"Utilities to support lidar (airborne, mobile, terrestial) applications at the landscape-, forest-, and tree-scale to facilitate ecologcial data collection, manipulation, analysis, modelling, and visualization.","language":"C++","stars":36,"topics":["ecology","forest-analysis","landscape-ecology","lidar","modeling","patches","point-cloud","rcpp","rcpparmadillo","remote-sensing"],"license":null,"category":"analytics","readme_excerpt":"spanner Definition of spanner 1 (chiefly British): WRENCH 2: a wrench that has a hole, projection, or hook at one or both ends of the head for engaging with a corresponding device on the object that is to be turned 3: implements algorithms for terrestrial, mobile, and airborne lidar processing, tree detection, segmentation, and attribute estimation (Donager et al., 2021), and hierarchical patch delineation (Girvetz & Greco, 2007). Install spanner Get the latest released version of spanner from github. Workflows Terrestrial Lidar Tree Attributes and Segmentation This package implements the tree detection and segmentation algorithm described in Donager et al. (2021) . The algorithm estimates tree locations and DBH by rasterizing individual point cloud values of relative neighborhood density and verticality within a slice of the normalized point cloud around breast height (1.37 m), then performs individual tree (instance) segmentation following ecological principles for \"growing\" trees based on input locations in a graph-theory approach. Implementation relies on work of Roussel et al. (2020) , Tao et al. (2015) , and de Conto et al. (2017) . Citation: Donager, Jonathon J., Andrew J. Sánchez Meador, and Ryan C. Blackburn 2021. Adjudicating Perspectives on Forest Structure: How Do Airborne, Terrestrial, and Mobile Lidar-Derived Estimates Compare? Remote Sensing 13, no. 12: 2297. https://doi.org/10.3390/rs13122297 PatchMorph: Patch Delineation Algorithm The patchwoRk function imple","default_branch":null,"files":null,"tree":[],"storefront":"/r/bi0m3trics","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/bi0m3trics/spanner/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}