An Application of Graph Commute Times to Image Indexing
In this paper we provide an overview of an image representation approach based on the description of layout and appearance properties of groups of features. In each image a graph of quantized features of interest is constructed. The features that are assigned to the same codebook bin are then grouped to produce a collapsed graph; the image content is represented by the matrix of commute times of this collapsed graph. This novel image descriptor can be used to label satellite image databases; we demonstrate the relevance and the efficiency of our approach by addressing classification problems on a dataset of 0.6 m resolution Quick bird images.