On Mon 03-Aug-2009 at 10:08 +0200, tennevin.yves wrote: >> >> Yes, the way to do it is to extend the current system of specifying >> input to autopano-sift-c via a .pto project. >> >> If this .pto project has approximate photo positions then >> autopano-sift-c can use this to decide which photos are worth >> comparing, and even which technique to use. >> >> (it can do this by precisely calculating overlapping area or simply >> measuring angular distance and comparing it to photo angle of view) >> >Wouldn't it better to let another tool do the job in detecting if two >images overlap, or do you mean to have autopano-sift-c use the exact >angle to detect cp in the control point area?
Originally we just fed photos to the control point generators, then we discovered that it was useful to convert the images into conformal (stereographic) space before classifying features, so we needed to pass angle of view and projection info as well. However the photos can be any mixture of lenses and cameras, so hugin supports an interface where it supplies a fragment of a .pto project which specifies both the photo file names and lens info for each photo. (Currently autopano-sift-c is the only tool that supports this .pto fragment communication, but the interface is well defined and usable by other tools) This is an extension of that system: if the .pto fragment contains position information too, then this can be used to shorten the matching process by excluding pairs that are nowhere near each other, we can also ignore pairs of photos where the positions are linked (coming soon), and we can use a different strategy (such as align_image_stack) where images are in similar locations but don't have linked positions. -- Bruno --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
