During religious festivals, transportation hubs, and public events, overcrowded spaces can turn deadly within seconds when too many people push in conflicting directions. Security staff watching camera feeds often cannot tell the difference between a calm but packed queue and a dangerous crush until people start falling. By the time panic is visible, it is too late to prevent injuries or deaths. Organizers need early warnings that account for both how tightly people are packed and whether the crowd is moving chaotically, so they can hold entry gates or open alternate exits before a stampede begins.