Projection Matrix

OpenDroneMap Desktop
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"Can we manually adjust the resolution when creating TRUE ORTHOMOSAICS from high-resolution images obtained at low altitudes?

· Our camera calibration is not possible; how does your application identify the camera?

· We notice distortions, especially at corner points, when creating orthophotos. Is there an option for manual intervention to resolve this issue?

· We are combining RGB and thermal orthomosaics from different cameras in a GIS application, but they don’t seem to align. Is there a way to solve this in your application? We use geographic referencing in Quantum GIS software. Is geographic referencing possible in your application?

· Does your program produce a projection matrix that converts 3D world coordinates into 2D pixel coordinates (this is most important for us)? If not, how can we obtain the intrinsic and extrinsic parameters? The interior and exterior rotation parameters provided by your software cannot enable us to run the projection matrix correctly. What kind of camera model do you use when performing the world to image coordinate transformation?"

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Welcome!

  1. What do you mean by this?

  2. By comparing the camera EXIF against a database if possible, and if not, by trying to work out the camera parameters during reconstruction

  3. If you need precise elevations, you need to use Ground Control Points.

  4. Yes, please see our documentation at docs.opendronemap.org

  5. Not directly as an end product. What is the use-case for this?

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