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orthogonal rectification of images

  • using webODM for image rectification

  • one of the two methods that can be used are:

    • ground control points (GCP) which are determined from published maps or global positioning systems (GPS).
    • digital elevation model (DEM) which are 3d representation of a terrain.

better way for rectification and stitching

We are using the SIFT (Scale Invariant Feature Transform) and SURF (Speeded-Up Ro-bust Features) algorithms to simultaneously ortho-rectify the images and also stitch them.