Living without Menu Bar: A Shape Retrieval Based Word Editor

Abstract

Shape descriptor plays very important role in shape retrieval system especially in the case of input shapes are drawn by hand. A good descriptor should be not only deformation tolerant but also compact and less memory consuming. With this in mind, we propose a new shape descriptor by which features are extracted at salient locations of the shape and then encoded using a vocabulary tree. To intuitively show performance of the proposed algorithm, we build a word editor demo program. Unlike other word editors, our program let users search pictures, draw auto-shapes or send instructions all by drawing a "shape" without using menu bar.