1. A Co-Saliency Model of Image Pairs.
- Author
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Li, Hongliang and Ngan, King Ngi
- Subjects
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IMAGE registration , *FEATURE extraction , *ALGORITHMS , *PYRAMIDS (Geometry) , *IMAGE segmentation , *SIMILARITY (Geometry) , *IMAGE processing , *PERFORMANCE evaluation - Abstract
In this paper, we introduce a method to detect co-saliency from an image pair that may have some objects in common. The co-saliency is modeled as a linear combination of the single-image saliency map (SISM) and the multi-image saliency map (MISM). The first term is designed to describe the local attention, which is computed by using three saliency detection techniques available in literature. To compute the MISM, a co-multilayer graph is constructed by dividing the image pair into a spatial pyramid representation. Each node in the graph is described by two types of visual descriptors, which are extracted from a representation of some aspects of local appearance, e.g., color and texture properties. In order to evaluate the similarity between two nodes, we employ a normalized single-pair SimRank algorithm to compute the similarity score. Experimental evaluation on a number of image pairs demonstrates the good performance of the proposed method on the co-saliency detection task. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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