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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-ZA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hi all<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><a href="http://agisoft.ru/products/photoscan/professional">http://agisoft.ru/products/photoscan/professional</a><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Agisoft can utilise (overlapping) aerial photography to generate point clouds, digital terrain models and true orthorectified images. This is generally used by people who do aerial surveys. Does anyone know of open source software with those capabilities? I have personally used GRASS to orthorectify old aerial photos (back in 2001), but it was rather painful…<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Regards<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Walter<o:p></o:p></span></p></div></body></html>