CBGIR: Content-Based Geographic Image Retrieval

CBGIR, a web-based system for performing content-based image retrieval in large sets of high-resolution overhead images. The system provides a familiar Google Maps interface to navigate the images and select regions of interest. A query-by-example paradigm is used to retrieve the most visually similar images to this region from a large target set of image tiles. Similarity can be computed with respect to a number of visual features including color, texture, and local invariant descriptors.