A Hierarchical Bayesian Generation Framework for Vacant Parking Space Detection

In this paper, from the viewpoint of scene understanding, a 3-layer Bayesian hierarchical framework (BHF) is proposed for robust vacant parking space detection. In practice, the challenges of vacant parking space inference come from dramatic luminance variations, shadow effect, perspective distortion, and the inter-occlusion among vehicles. By using a hidden labeling layer between an observation layer and a scene layer, the BHF provides a systematic generative structure to model these variations. In the proposed BHF, the problem of luminance variations is treated as a color classification problem and is tackled via a classification process from the observation layer to the labeling layer; while the occlusion pattern, perspective distortion, and shadow effect are well modeled by the relationships between the scene layer and the labeling layer. With the BHF scheme, the detection of vacant parking spaces and the labeling of scene status are regarded as a unified Bayesian optimization prob...

• Type: Journal
• Year: 2010
• Where: TCSV
• Authors: Chingchun Huang, Sheng-Jyh Wang
• Keywords: Computational Biology, Labeling Layer, Luminance Variations, TCSV 2010, Vacant Parking Spaces