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    Accuracy assessment in envi software

    ahmad125
    By ahmad125,
    Hi   How do i confusion matrix in envi software? what is ground truth image and how do i build it? Can you help me?

    QA/QC on LIDAR DATA ?

    Svenne68
    By Svenne68,
    Hi out there,   I have been tasked to do comment on the quality of a LIDAR product. But the only thing I've got is a "point cloud" as a shapefile and no other information. There is no metadata or text in the description.   How do I do the QA/QC then ??

    Raster to polygon random figure

    phanteon
    By phanteon,
    Hello guys I've got this map which I have to convert into shapefile. Each zone represented with a different color must be transformed into a polygon. (Feature) I know I can create features manually, that I have to many Maps and some of them have too many polygons that need to be created. I already tried raster to polygon in arcgis. But it creates waaay to Many polygons and the result is basically useless. Please tell me about any method you may know. Thanks

    Changes in the future satellite remote sensing industry

    Arhanghelul
    By Arhanghelul,
    It looks like the Copernicus free acces data of the ESA will change the satellite industry: http://www.spacenews.com/article/civil-space/40792free-copernicus-data-will-impose-change-on-commercial-earth-observation   More free or cheap data will be available in the future, i belive and hope.

    [REQ]DEM Fusion Letreture and sample data

    am2
    By am2,
    Hi every one, I have a class project for appling dem fusion on two diffrent dem and compare their accuracy ..but I have some problems..I dont have any sample data for using it and show how to do DEM fusion for class.I have searched and I have found some articles about dem fusion ..But they are not enough..   Does any one have some data or article or any thing for DEM fusion?If you have please share..Thanks

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