کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
527572 869335 2007 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hierarchical building recognition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Hierarchical building recognition
چکیده انگلیسی

In urban areas, buildings are often used as landmarks for localization. Reliable and efficient recognition of buildings is crucial for enabling this functionality. Motivated by the applications which would enhance visual localization and navigation capabilities, we propose in this paper a hierarchical approach for building recognition. In the first recognition stage the model views are indexed by localized color histograms computed from dominant orientation structures in the image. This novel representation enables quick retrieval of a small number of candidate buildings from the database. In the second stage the recognition results are refined by matching previously proposed SIFT descriptors associated with local image regions. For this stage, we propose a method for selecting discriminative SIFT features and a simple probabilistic model for integration of the evidence from individual matches based on the match quality. This enables us to eliminate the sensitive choice of threshold for match selection as well as the sensitivity to the number of features characterizing different models. The proposed approach is validated by extensive experiments, with images taken in different weather conditions, seasons and with different cameras. We report superior recognition results on a publicly available database and one additional database of buildings we collected.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Image and Vision Computing - Volume 25, Issue 5, 1 May 2007, Pages 704–716
نویسندگان
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