State-of-the-Art in Symbol Spotting

Abstract

In this chapter, we will review the related work on symbol spotting which has been done in the last years. We first present a review of the contributions from the Graphics Recognition community to the spotting problem. In the second part, we focus our attention on the different symbol description techniques and the families we can find in the literature. Then, the existing data structures which aim to store the extracted descriptors and provide efficient access to them will be analyzed. We finally review the existing methods for hypotheses validation which can be used for spotting purposes.