1. Content-based image retrieval systems;Gudivada;IEEE Comput.,1995
2. B. Andrews, U.S. Patent and Trademark Office ORBIT Trademark Retrieval System, T-term User Guide, Examining Attorney's Version, Oct. 1990.
3. Kim W.Y., Yuan P.O., A practical pattern recognition system for translation, scale and rotation invariance, in: Proceedings of IEEE International Conference on Computer Vision and Pattern Recognition, 1994.
4. Query by image and video content: the QBIC system;Flickner;IEEE Comput.,1995
5. H.V. Jagadish, A retrieval technique for similar shapes, in: Proceedings of ACM SIGMOD, 1991, pp. 208–217.