@article {18268, title = {Robust digital fingerprinting for curves}, journal = {Proc. of IEEE Int. Conf. on Acoustics, Speech, and Signal Processing (ICASSP{\textquoteright}05)}, volume = {2}, year = {2005}, month = {2005///}, pages = {529 - 532}, abstract = {Hiding data in curves can be achieved by parameterizing acurve using the B-spline model and adding spread spectrum sequences in B-spline control points. In this paper, we pro- pose an iterative alignment-minimization algorithm to per- form curve registration and deal with the non-uniqueness of B-spline control points. We demonstrate through experi- ments the robustness of our method against various attacks such as collusion, geometric transformation, and printing- and-scanning. We also show the feasibility of our method for fingerprinting topographic maps and detecting finger- prints from printed copies. }, author = {Gou,H. and Wu,M.} }