00424nas a2200121   4500008003900000245007100039210006900110100001500179700001800194700002100212700001300233856005600246       2009                          d00aA Novel Feature Descriptor Invariant to Complex Brightness Changes0 aNovel Feature Descriptor Invariant to Complex Brightness Changes1 aTang, Feng1 aLim, Suk-Hwan1 aChang, Nelson, L1 aTao, Hai  uhttp://users.soe.ucsc.edu/~manduchi/cvpr09_tang.pdf