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A New Image Completion Method Using Hierarchical Priority Belief Propagation Algorithm  

Kim, Moo-Sung (Department of Computer Science, Catholic University of Korea)
Kang, Hang-Bong (Department of Computer Science, Catholic University of Korea)
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Abstract
The purpose of this study is to present a new energy minimization method for image completion with hierarchical approach. The goal of image completion is to fill in missing part in a possibly large region of an image so that a visually plausible outcome is obtained. An exemplar-based Markov Random Field Modeling(MRF) is proposed in this paper. This model can deal with following problems; detection of global features, flexibility on environmental changes, reduction of computational cost, and generic extension to other related domains such as image inpainting. We use the Priority Belief Propagation(Priority-BP) which is a kind of Belief propagation(BP) algorithms for the optimization of MRF. We propose the hierarchical Priority-BP that reduces the number of nodes in MRF and to apply hierarchical propagation of messages for image completion. We show that our approach which uses hierarchical Priority-BP algorithm in image completion works well on a number of examples.
Keywords
Image Completion; Belief Propagation; Priority Belief Propagation; MRF; Hierarchical Model;
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