SYSTEM AND METHOD FOR VEGETATION DETECTION FROM AERIAL PHOTOGRAMMETRIC MULTISPECTRAL DATA

    公开(公告)号:WO2022213218A8

    公开(公告)日:2022-10-13

    申请号:PCT/CA2022/050555

    申请日:2022-04-09

    摘要: Systems and methods for vegetation detection from aerial photogrammetric multispectral data. The method includes: detecting apexes in a height model using Local Maxima (LM) detection; detecting vegetation as detected apexes; performing orthorectification to derive an orthomosaic; generating a fractional map of a vegetation class by applying a Fuzzy classifier on the orthomosaic using the detected vegetation to define the class; generating a binary ridge map using the height model to identify ridges; combining the binary ridge map and the fractional map of the vegetation class to generate a ridge integrated fractional map; performing delineation of individual vegetation on the ridge integrated fractional map on a vegetation class using an active contour algorithm; and outputting the delineated vegetation.

    SYSTEM AND METHOD FOR VEGETATION DETECTION FROM AERIAL PHOTOGRAMMETRIC MULTISPECTRAL DATA

    公开(公告)号:WO2022213218A1

    公开(公告)日:2022-10-13

    申请号:PCT/CA2022/050555

    申请日:2022-04-09

    IPC分类号: G01N21/25 G01C11/04 G06V20/10

    摘要: Systems and methods for vegetation detection from aerial photogrammetric multispectral data. The method includes: detecting apexes in a height model using Local Maxima (LM) detection; detecting vegetation as detected apexes; performing orthorectification to derive an orthomosaic; generating a fractional map of a vegetation class by applying a Fuzzy classifier on the orthomosaic using the detected vegetation to define the class; generating a binary ridge map using the height model to identify ridges; combining the binary ridge map and the fractional map of the vegetation class to generate a ridge integrated fractional map; performing delineation of individual vegetation on the ridge integrated fractional map on a vegetation class using an active contour algorithm; and outputting the delineated vegetation.