Palm print key point locating method and device

The invention provides a palm print key point locating method and device, and relates to the field of computer vision. The invention can locate all palm print key points in a palm print and has high locating precision. The method comprises the following steps: firstly, utilizing a statistical method to carry out first-time locating on the palm print key points by adopting a trained first classifier to obtain a first group of palm print key points; secondly, utilizing a dynamic programming method to obtain a maximum energy path and a discrete energy path of each point in the first group of palm print key points; thirdly, locating a second group of palm print key points by utilizing a second classifier within a preset range of each discrete energy path; and finally estimating each palm print key point in the second group to finally determine a third group of palm print key points. The method and device provided by the embodiment of the invention is used for locating the palm print key points and exhibits high locating precision.