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My work does true ortho rectification. We are looking to transition into a more open source company. One of the processes we are looking to "open source" is true ortho. Does anyone know of a software package (open source) that can perform true orthorectification. Ideally, it would be a complete package, but it could be a series of libraries, tools, plugins, etc.

Thanks...

Reclarification:

A true ortho is similar, but different to a regular ortho. With regular orthos you will have building lean. A true ortho is a process to remove the lean, and "stand-up" the buildings. The following is an explanation: http://www.esri.com/news/arcuser/1001/standup.html

Because of this, I do not believe this is a duplicated question.

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    possible duplicate of free GIS software that can orthorectify? – mkennedy Jan 30 '14 at 18:16
  • MapKnitter is a potential github.com/jywarren/mapknitter – Mapperz Jan 30 '14 at 18:20
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    Might be worth clarifying what you mean by true ortho as opposed to geo-rectify (or false ortho, if there is such a thing:-)). Not everyone understands the differences. – BradHards Jan 30 '14 at 19:42
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    If the linked possible duplicate is not really a duplicate, perhaps because the solutions there don't do "true" rectification, please explain how your question is different. Thanks :) – matt wilkie Jan 30 '14 at 20:01
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    @alexgleith: it doesn't need to be from an aircraft. I believe I understand it, but I'm not sure that understanding it universal. – BradHards Jan 31 '14 at 4:11

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