Computational Photography and Capture, Spring 2010

Labs

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Labs6: Automatic Photo Pop-up

The goal of today's labs is to become familiar with the publication of D. Hoiem, A.A. Efros, and M. Hebert: "Automatic Photo Pop-up", SIGGRAPH 2005 (link).

Your task is to read the paper, see the presentation, and then play with the application and try it on some images. Try to find 3 images that give good results, and 3 images where the algorithm fails. Can you see in which case the algorithm fails?

Follow the Walkthrough section of this page to run Photo Pop-up. Use temporary space (/tmp), since the files you have to download are quite large. Unfortunately, there is no tool on the labs to save images as .pbm as required by the segmentation program. Instead, you can use images from this dataset, the segmented images being provided as well.

You also need a VRML viewer to visualise the results. Unfortunately it's too complicated to get one working on Linux. But here is what you can do : log on to a windows session from http://sgd2.cs.ucl.ac.uk/sgd , download Orbisnap for Windows 32bits, unzip it, and run the orbisnap.exe located in the bin directory.