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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Comput Med Imaging Graph. 2015 Sep 25;46(0 3):277–290. doi: 10.1016/j.compmedimag.2015.09.002

Fig. 5.

Fig. 5

The image point sampling strategies for the coarsest resolution (a) and a finer resolution (b), respectively, in the application stage. For the coarsest resolution, a set of grid points (white dots in (a)) are sampled from the entire image. For a finer resolution, grid points (white dots in (b)) are sampled only near the predicted landmark location (red dot in (b)) from the previous resolution.