DETECTION METHOD AND APPARATUS FOR OVERLAPPED NOTES

A detection method and a detection apparatus for overlapped notes. The detection method comprises: collecting a front image and a back image of banknotes to be recognized, and transmitting the images (101); respectively acquiring front banknote information and back banknote information about the banknotes to be recognized according to the front image and the back image, and initializing a corresponding local characteristic attribute window, wherein the local characteristic attribute window is a template of a pre-set recognition region containing corresponding characteristic attributes of an image that needs to be recognized (102); performing coupling degree measurement on the transmitted image of the front image and the back image according to the local characteristic attribute window to obtain a measurement result (103); judging whether the measurement result meets a pre-set banknote overlapping condition (104); if so, determining that the banknotes to be recognized are overlapped banknotes (105); and if not, determining that the banknotes to be recognized are not overlapped banknotes (106). The detection method for overlapped notes solves the problem of misjudgement that is easily caused where there are attachments on banknotes, the banknotes slightly arch and old banknotes become thick.