What software are people using to stitch photos together?

Posted by Kim Faber on September 12, 2013 at 9:47pm

I am new at this, and so far have not been able to determine what software is being used or recommended.  Most of the software I find is either to do panorama's or heavy duty 3D.  I assume Agisoft works, but is expensive.

Georeferenced or not? 

Where is the GPS data coming from, camera, or autopilot-gps?

Thanks

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Replies

  • DAVE BEHR March 6, 2014 at 9:24am

    Deon

    I also have for the SX260 the firmware (for intervolemeter timing)  - will it be the same for the SX100 - so don't have to purchase another set of firmware ?

    David

    • Deon van der Merwe > DAVE BEHR March 6, 2014 at 9:25am

      Dave,

      The CHDK firmware is free at: http://chdk.wikia.com/wiki/Downloads

    • DAVE BEHR > Deon van der Merwe March 6, 2014 at 9:31am

      Yes - i know this link - but MAXMAX has added some special macros for NDVI

      David

    • Deon van der Merwe > DAVE BEHR March 6, 2014 at 9:36am

      The macros from MaxMax are scripts that plug into a free software called ImageJ. It is very limited, and takes a LOOOOOOOOOONG time to process images.

  • DAVE BEHR March 6, 2014 at 8:36am

    Deon,

    Thanks for the through reply,

    I have AgpIxel and Agisoft.

    Is the Canon SX100-Converted from MAXMAX (Dan) ?

    How is it compared with the SX260 converted from MAXMAX ?

    Which plane are you using ? I have a Skywalker - will the Sony NEX-5 fit into it ?

    I need all data with GPS to Georeferencing.

    I tried the ,<CTRL>. F in Mission Planner - but not sure about its accuracy - Do you have experience with it ?

    Dave.

  • This reply was deleted.
    • MR60
      Hugues March 24, 2014 at 10:30am

      Hi,

      I have downloaded and tried "Hugin" on a set of 15 pictures that I used succesfully on Microsoft ICE. The result with Hugin is desastreous : it does not succeed to stitch correctly these pictures; it does not recognize common points between pictures. I understand why it is free...

  • James Dunthorne October 28, 2013 at 6:59pm

    Does anyone know of a free version of Agisoft? 

  • Developer
    Craig Elder September 13, 2013 at 1:46pm

    Check out http://dronemapper.com/

  • Kim Faber September 13, 2013 at 11:34am

    Thanks for the replies. Yes, it is for crops, corn and beans. I am trying to help someone who is just starting out on this, so nothing too fancy or complicated yet.  I was under the impression that ICE would not work.  I will try that and see how it goes.

    Thanks again.

  • Deon van der Merwe September 13, 2013 at 3:25am
    Since this thread is in the Agricultural UAV Discussions group, I assume you want to look at crops or similar applications. For accurate brightness value results when calculating an NDVI etc., you need more than simply stitching the images, you need to compensate for the variations in brightness values caused by the variations in light angle between the light source (the sun), the object on the ground, and the camera. These variations are more important in typical UAV flights, compared to traditional aerial photography, due to the low altitude and wide angle lenses we use. To overcome the problem you need to have lots of redundancy in your imagery, so that every point on the ground is covered by multiple images taken from many different angles. You then use the average brightness value for each point for calculation of the vegetation index. Agisoft does this whole process well (except for the NDVI calculation, for which we use AgPixel), but whatever software you end up using, it will be important to have the ability to produce an averaged orthophoto. Without that you will be limited in your ability to do accurate quantitative assessments.

    Deon
This reply was deleted.