Action recognition method and device and vehicle control method and device

The invention provides an action recognition method and device and a vehicle control method and device, and relates to the technical field of computers. The action recognition method comprises the following steps: acquiring a target image frame, wherein the target image frame comprises a target object; based on the target image frame, determining skeleton key points of the target object in the target image frame; determining a first spatial position feature corresponding to the action of the target object based on a skeleton key point of the target object in the target image frame; determining a periodic feature corresponding to the action of the target object, wherein the periodic feature comprises a second spatial position feature corresponding to the action of the target object in a historical image frame before the target image frame; and identifying the action of the target object based on the first spatial position feature and the periodic feature. The action features of the target object are determined