Projection of meteorology radar images onto a sphere

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Discussion Overview

The discussion revolves around the projection of meteorology radar images onto a spherical surface for the purpose of merging multiple images covering a large area. Participants explore potential software solutions and methodologies for achieving this projection and merging process.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about software options for projecting and merging radar images onto a sphere, indicating flexibility in programming languages for development.
  • Another participant mentions a specific Earth projection program related to svgalib's "threeDkit," noting challenges with high-resolution images and suggesting the use of OpenGL-like APIs.
  • A third participant asks for clarification on the merging approach, questioning whether the focus is on geometric data for alignment or on analyzing image data to determine overlaps for mapping purposes.
  • Another participant suggests they have found software that can warp images together automatically, indicating potential solutions for the merging process.

Areas of Agreement / Disagreement

Participants express various approaches and considerations regarding the merging of images, but there is no consensus on the best method or software solution. The discussion remains open with multiple viewpoints presented.

Contextual Notes

Participants have not fully defined the specific requirements for the merging process, such as the desired accuracy or the types of data to be used, which may affect the choice of software and methodology.

Caffeinomane
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Hello everybody, I am working on a project for merging the images of multiple meteorology radars covering a large area. I would like to project each of the images onto a spherical surface and merge them.

Do you know if there is a piece of software that can help me with that?
I can develop in many programming languages, so that is not a problem.
 
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Caffeinomane said:
Hello everybody, I am working on a project for merging the images of multiple meteorology radars covering a large area. I would like to project each of the images onto a spherical surface and merge them.

Do you know if there is a piece of software that can help me with that?
I can develop in many programming languages, so that is not a problem.

I saw a really interesting Earth projection program test for svgalib's "threeDkit" adaptation of image isn't difficult only problem is running high resolutions with that particular library.
Find a good vesa firmware and driver for your favorite architecture and vioula.
it looks like a simple opengl like api.
I also saw a series of images for the animation frames of the Earth spinning from the motif widget manager, a sprite generator is like what I am thinking.
 
Hey Caffeinomane and welcome to the forums.

In what way do you want to merge the images? Do you want basically just use geometric data to clip the unwanted overlap and align the images or do you want to try and use the image data itself and analyze the images to which part of the images are part of the overlap so that you can calculate the mapping information from the image data and not solely just the geometric data?

(When I say geometric data I am referring to coordinate data points on the Earth that correspond to specifying the boundaries that correspond to the image in the context of the geometry that is being described).
 
If I am correct you are trying to do this Projection Sphere , I was looking into this and I could even get software to warp the images together near automatically as well. Good luck
 

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