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    Help with bi-temporal image analysis

    limmteri
    By limmteri,
    Hi there,  I'm relatively new to remote sensing and incorporating it in my university project. I am attempting to compare digital aerial photographs of two dates using NDVI. I've read in various sources that it is best to convert DNs to radiance or reflectance values when carrying out NDVIs and when comparing images of two dates, however these mostly refer to satellite images. Is this a necessary pre-processing step for aerial images? And if so, how do I carry this conversion out in re

    what is HERE map encryption system?

    killercode
    By killercode,
    Hi everyone, Who know What is encryption system used by HERE Company for their maps in SDCard?  

    Help with Landsat 5 TM 8-Day NDVI Composite

    paugalansino
    By paugalansino,
    Hello,  I'm working in a project where I need the  NDVI for some areas from Uruguay for the period 1988-1993, and I found this product "Landsat 5 TM 8-Day NDVI Composite" but I'm not sure of how it was calculated because the landsat frecuency is of 16 days and the NDVI value is given for every 8 days. I noticed that several Landsat products have this 8-day frecuency though. so maybe this is a general thing of the Landsat products. Here's the link of the product https://code.earthengine

    GeoRoc Consulting

    GeoRocConsulting
    By GeoRocConsulting,
    Hi All First of all apologies if I have posted this in the incorrect area, new to this forum. I work for a GIS focused start up in London and would like to share our company on this forum. GIS as an industry is growing faster than ever before, and with so many GIS related professionals within this group, I am hoping it may be of interest to some. GeoRoc Consulting is a design and engineering consultancy which offers both in-house consulting and external recruitment services tailor

    Request for plotting of route waypoints using Google Map..?

    adnan0001
    By adnan0001,
    Dear All. I need your help guys in Plotting a route using Google Map or any other solution, I need to plot a complete route for a day visited ..next day again it has to be repeated.. Can anyone share the logic behind the criteria for the development?. Thank You.

Portal by DevFuse · Based on IP.Board Portal by IPS
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