Laser scanning-based bio-feature 3D four-dimensional data identification method and system

The invention provides a laser scanning-based bio-feature 3D four-dimensional data identification method. The method comprises the steps of obtaining 3D data of a target object shot by a zoom camera after a laser beam emitted by a laser device is projected to the target object and is reflected to the zoom camera; performing identification locating on the 3D data; sending a moving instruction to alaser scanning module for multiple times to instruct the laser scanning module to change a collection position, thereby obtaining 3D data shot in multiple collection positions in a given time by the zoom camera; performing fusion modeling on the 3D data shot in the multiple collection positions to obtain 3D model data of the target object in the given time, thereby finishing reconstruction of thetarget object; and performing corresponding point cloud comparison to identify an identity of the target organism. The invention furthermore provides a 3D four-dimensional data identification system.The laser scanning module only adopts one laser device and one zoom camera, so that the cost is reduced; and the target object is wholly reflected through laser, without dead angles, so that the quality of photos shot by the zoom camera is higher, the data is easier to identify, and the accuracy is improved.