Patent ID: 11935303
Assignee: PATRIOT ONE TECHNOLOGIES INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A computer-implemented method for mitigating crowd panic detection using a panic detection system, the method comprising the steps of:
receiving movement data in field of view of a camera;
executing a person detection or localization algorithm to identify people in a video image frame;
extracting features;
executing a panic detection algorithm to check for panic detection;
comparing the video image frame to identify panic in the frame; and
reporting the results to the user via a user interface;
wherein the software module determines whether number of people in the frame of the video image exceeds a threshold number to proceed with further extraction of the frame image;
wherein the software module identifies people with cluster of red pixels indicating that these areas have motion from people which is perceived to be moving faster or in a different direction relative to baseline, indicating erratic behaviour;
wherein the baseline is taken from recent history of people's movement within the video images representing a scene;
wherein if the features of the scene change dramatically based on the perceived movement of the people in the scene and meet or exceed the threshold features for movement in enough consecutive frames, the system determines that there is panic in the scene;
wherein once a panic in the scene is assessed, the processor is further configured to execute one or more overlapping rule and quadrant rule to determine a scene from “abnormal” to “normal”.