@conference {SHI05, title = {On Rotational Invariance for Texture Recognition}, booktitle = {Proceedings of the IEEE International Workshop on Texture Analysis and Synthesis}, year = {2005}, address = {Bejing, China}, url = {http://users.soe.ucsc.edu/~manduchi/Papers/cam-rdy-017.pdf}, author = {X. Shi and Roberto Manduchi} }