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Scene Parsing Using Region-Based Generative Models

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3 Author(s)
Matthew R. Boutell ; Dept. of Comput. Sci. & Software Eng., Rose-Hulman Inst. of Technol., Terre Haute, IN ; Jiebo Luo ; Christopher M. Brown

Semantic scene classification is a challenging problem in computer vision. In contrast to the common approach of using low-level features computed from the whole scene, we propose "scene parsing" utilizing semantic object detectors (e.g., sky, foliage, and pavement) and region-based scene-configuration models. Because semantic detectors are faulty in practice, it is critical to develop a region-based generative model of outdoor scenes based on characteristic objects in the scene and spatial relationships between them. Since a fully connected scene configuration model is intractable, we chose to model pairwise relationships between regions and estimate scene probabilities using loopy belief propagation on a factor graph. We demonstrate the promise of this approach on a set of over 2000 outdoor photographs, comparing it with existing discriminative approaches and those using low-level features

Published in:

IEEE Transactions on Multimedia  (Volume:9 ,  Issue: 1 )