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flowengr
525 Vistas, 4 Respuestas

Geometric Correction of Satellite surface imagery

I am using AutoCAD LT, attaching satellite jpeg images, then drawing on an overlay on the image. There are length errors in both the x and y plan. Is there a process that improve accuracy?

The possible errors are many: sloping terrain, angle of the eye, etc.

  • Are some image file types better than others?
  • Is there a process to normalize the image?
  • How does accuracy of satellite imagery compare to aerial photography?
  • Are there ways to check whether an image copied from GE spans a seam between adjacent images, which might introduce a new set of distance errors?
  • Can anyone recommend a good reference on techniques to improve drawings that are based on overlays f satellite imagery?

Thanks for any help you can offer.

Russ

 

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