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Chen, Jian, Jie Tian, Noah Lee, Jian Zheng, R. Theodore Smith, and Andrew F. Laine. A Partial Intensity Invariant Feature Descriptor for Multimodal Retinal Image Registration. 2010.

Chen, Jian, et al. A Partial Intensity Invariant Feature Descriptor for Multimodal Retinal Image Registration. 2010.