It was based on a research project called Autostich that was developed by Matthew Brown and DG Lowe; the research paper was originally published in 2003. Autopano Pro is one of the few commercial licensees of the Autostich engine. A free tool using the same technique is autopano
autopano-sift-C can be used to find control points in overlapping image pairs and is a C port of the C# software autopano-sift. It is somewhat faster and doesn't require a C# runtime - Installing the mono C# runtime on OS X has proved to be problematic on some systems.
autopano-sift-C is available from the hugin project and can only be used within hugin as an optional installation due to patent issues: the use of the Scale-invariant feature transform[*] algorithm is restricted by US Patent 6,711,293, awarded March 23, 2004 to the University of British Columbia.
ProgramDocumentationautopano-siftIntroduction:autopano-sift.pdf,autopano-sift.txtautopano-complete.shConvenience script:autopano-complete.pdf,autopano-complete.txtautopano-complete.old.shConvenience script (obsoleted version):autopano-complete.old.pdf,autopano-complete.old.txtautopanoMatch program: autopano.pdf,autopano.txtautopanogGUI: autopanog.pdf,autopanog.txtgeneratekeysSIFT key generation program:generatekeys.pdf,generatekeys.txtshowoneKey display program:showone.pdf,showone.txtshowtwoKey match display program:showtwo.pdf,showtwo.txt
Developing autopano-sift was rewarding on its own and I am thankful for theexperience. I am currently pursuing my graduate studies incomputer science and plan to write a diploma thesis related to feature basedimage algorithms. Developing autopano-sift has introduced me to the field ofcomputer based image processing and computer vision at large.
In an older post, I had mentioned the steps to install Hugin the old school way, by downloading all the dependencies, compiling some of them before installing the final product. Hugin has come a long way from then, and is much stable now. It is now as simple as a one step apt-get to install it. It also comes with its own control point detection algorithm, the Hugin CPFind. This is quite robust, but if we want the old autopano-sift-C as our CP detection algorithm (after all, linux is all about choice), then below are the steps to setup Hugin with it. The OS in context is the latest Linux Mint 16 Petra, which is based off Ubuntu 13.10.
This will create the deb package for Autopano-Sift-C. Now install the package to default location (so that it can be referred by Hugin without much ado):
sudo dpkg -i autopano-sift-C-2.5.2-Linux.deb
This final release of the new Autopano Pro / Giga engine in version 3.5 is a major upgrade of internal parts in autopano stitching engine. It raises the quality of stitching in several areas and you should see the difference.
This might be the most visible change in this autopano release. You'll see several new tabs when entering the control point editor. At the same time, with the improvements made, you'll probably need to go in the control points editor less than before.
Some Windows users have crashes when using system file browser. These crashes can happen when you just try to open a folder to select some images. If you do have crashes in these part, you are having some issues with either network drives, shortcut on this folder, other software acceeding to the folder like antivirus, etc. To prevent these crashes, we added a new option in general settings to tell autopano not to use the native file browser, but using our own file browser that doesn't suffer from these issues. It should prevent any crash coming from strange cohabitation with external software accessing folder.
The troubleshooting page for autopano support has been updated with all the solutions found. Have a look there it you have still recurring crashes with the software : -en/action/view/Autopano_Solutions
Focal Integration in Papywizard: Focal length is a critical value for several algorithms in autopano. Or with papywizard plugin, we can have several sources for this value and sometimes, it seems all sources are not given the same focal value. So we introduced some check and editable focal length to correct such cases.
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