PROBERT Posted January 21, 2018 Report Share Posted January 21, 2018 (edited) Which one do you recommend me to use ERDAS AutoSync or Photogrammetry to orthorectify many old aerial photos ? I have about 600 of them. The aerial photos I have do not have georeferenced. Edited January 21, 2018 by PROBERT Quote Link to comment Share on other sites More sharing options...
3dbu Posted January 22, 2018 Report Share Posted January 22, 2018 Good options could be Photogrammetry, regards Quote Link to comment Share on other sites More sharing options...
ram3322 Posted January 22, 2018 Report Share Posted January 22, 2018 For Photogrammetry you need controls points (GCP) Quote Link to comment Share on other sites More sharing options...
spazzle Posted January 22, 2018 Report Share Posted January 22, 2018 (edited) PCI Geomatics may be the way to go, as it has a module that handles old aerial pictures Webinair - How to Ortho Mosaic 50-Year-Old Historical Air Photos The Easy Way Case Study with the City of Saint John, New Brunswick Spoiler hxxp://www.pcigeomatics.com/how-to-ortho-mosaic-50-year-old-historical-air-photos-the-easy-way Edited January 22, 2018 by spazzle Quote Link to comment Share on other sites More sharing options...
uriendemonav Posted January 23, 2018 Report Share Posted January 23, 2018 On 1/22/2018 at 5:11 AM, PROBERT said: Which one do you recommend me to use ERDAS AutoSync or Photogrammetry to orthorectify many old aerial photos ? I have about 600 of them. The aerial photos I have do not have georeferenced. im kinda old school so ER Mapper is my suggestion for you, it has served me well through the years. there is a medicine already made by the great Lomex here go find it. Quote Link to comment Share on other sites More sharing options...
Lurker Posted January 24, 2018 Report Share Posted January 24, 2018 first, since you have so many data, you need a batch process to do that. erdas autosync is good since you need to make a lot of geo-referencing data also I think you need combination of software Quote Link to comment Share on other sites More sharing options...
spazzle Posted January 25, 2018 Report Share Posted January 25, 2018 (edited) PCI Geomatics - OrthoEngine - Aerial Photographs Using PCI OrthoEngine - Learn how to work with scanned historical air photos in the Historical Airphoto Processing (HAP) module of Geomatica to create accurate ortho mosaics that can provide the ability to perform change detection and extract features of interest. Links to Additional info - hope this helps you in your project Spoiler Aerial Photographs http://www.pcigeomatics.com/orthoengine/aerial-photographs PCI Geomatics Self-Paced Training on Udemy FREE http://www.pcigeomatics.com/software/hap/hap-overview Historical Airphoto Processing http://www.pcigeomatics.com/pdf/hap/HAP-flyer.pdf Semi-Automated Historical Airphoto Processing http://www.pcigeomatics.com/pdf/HAP_WhitePaper.pdf Digitizing Aerial Photography - Understanding Spatial Resolution http://www.cfs.nrcan.gc.ca/pubwarehouse/pdfs/5517.pdf Edited January 25, 2018 by spazzle 1 Quote Link to comment Share on other sites More sharing options...
PROBERT Posted March 10, 2018 Author Report Share Posted March 10, 2018 Thank you everyone. My employer only has ERDAS, so I have been using AutoSync lately and got to learn and dive into it and it is really great software to use. Regards ! Quote Link to comment Share on other sites More sharing options...
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