Furthermore, the warning information may be issued while the invalid chip is determined, for example, a warning is provided by voice, so as to ensure the fairness of the game.

In some optional embodiments, the game stage switching method can be applied to an intelligent game. When switching from the betting stage to the gaming stage, there is no need to perform a specific action or press a specified button by a dealer. Based on the video stream analysis, the betting stage is automatically switched to the gaming stage, where the video stream may include video streams synchronously acquired from a plurality of views of the game desktop.

The first image frame in the plurality of the continuous image frames where the specific target object is detected is firstly determined in the video stream from one view, and the synchronous image acquired synchronously with the first image frame is determined in the video stream synchronously acquired from the other view. If the specific target object, for example, a game card, is detected in at least one image frame of N image frames acquired before the synchronous image, the game progress stage is switched from the betting stage to the gaming stage at the time point corresponding to the image where the specific target object is detected earliest in the N image frames acquired before the synchronous image.

If the specific target object is not detected in the N image frames acquired before the synchronous image, the game progress stage is directly switched from the betting stage to the gaming stage at the time point corresponding to the first image frame.