Variation-Factored Encoding of Facade Images
Suhib Alsisan, Niloy J. Mitra
short paper EUROGRAPHICS 2012


Urban facades contain large-scale repetitions in the form of windows, doors, etc. Such elements often are in different configurations (e.g., open or closed) obscuring their regular arrangements to any direct low-level pixel matching based repetition detection.We propose a variation-factored representation for facade images by progressively favoring larger repeated structures while allowing relabeling using candidate element types. We formulate the problem as a Markov Random Field (MRF) based optimization, and evaluate the algorithm on a large number of benchmark facade images. Such a facade encoding is very compact and can be used for rapid generation of realistic 3D models with variations suitable for online map viewers or mobile navigation aids.


Please find input/ouput data for the examples shown in the paper and supplementary material here.


AUTHOR = "Suhib Alsisan and Niloy J. Mitra",
title = "Variation-Factored Encoding of Facade Images",
booktitle = "EUROGRAPHICS Short Paper", 
YEAR = "2012",


This research has been partially supported by the Marie Curie Career Integration Grant 303541.

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