Queue monitoring in occlusion conditions through computer vision

A system comprising:

• a memory storing computer-executable instructions;
• and
• at least one processor coupled with the memory and configured to execute the computer-executable instructions to:
• determine, based on an object detection system and a video capture device, a first size of a queue captured in a video frame;
• determine a second size of the queue based on applying a correction model to the first size of the queue, the correction model being configured to correct a statistical bias associated with the object detection system or the video capture device;
• detect, based on an object tracking system, a person at a front of the queue;
• determine, based on the object tracking system, a first period of time spent by the person at the front of the queue;
• and
• estimate a second period of time spent by the person at a non-front position in the queue based at least in part on the first period of time and the second size of the queue.

A non-transitory computer-readable device having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:

• determining, based on an object detection system and a video capture device, a first size of a queue captured in a video frame;
• determining a second size of the queue based on the first size of the queue and a correction model, the correction model being configured to correct a statistical bias associated with the object detection system or the video capture device;
• detecting, based on an object tracking system, a person at a front of the queue;
• determining, based on the object tracking system, a first period of time spent by the person at the front of the queue;
• and
• estimating a second period of time spent by the person at a non-front position in the queue based at least in part on the first period of time and the second size of the queue.