TY - CONF T1 - A Novel Feature Descriptor Invariant to Complex Brightness Changes T2 - CVPR'09 Y1 - 2009 A1 - Tang, Feng A1 - Suk-Hwan Lim A1 - Nelson L. Chang A1 - Hai Tao JF - CVPR'09 UR - http://users.soe.ucsc.edu/~manduchi/cvpr09_tang.pdf ER -