Image Understanding

7Content-Based Image Retrieval

With the development of electronic devices and computer technology, a large number of images and video sequences (in general, a group of images) have been acquired, stored, and transmitted. As huge image databases are built, the searching for required information becomes complicated. Though a keyword index is available, it has to be created by human operators and it could not fully describe the content of images. An advanced type of technique, called content-based image retrieval (CBIR), has been developed for this reason.

The sections of this chapter are arranged as follows:

Section 7.1 introduces the matching techniques and similarity criteria for image retrieval based on color, texture, and shape features.