Computer vision system that provides identification and quantification of space use at a sub room level of granularity

A computer vision system, comprising:

• a camera that captures a plurality of image frames in a target field;
• a processor coupled to the camera, the processor configured to receive the plurality of image frames and detect occupants in the space from the image frames, assign an ID for each of a person and a location of a person in a field of view, an input image or a series of input images are processed by the processor for occupant detection and location, and occupants visible in the image are assigned IDs and locations in the image frame;
• a user interface that allows for a determination of a reference object including one or more of:
• shape, dimensions, and location in the image;
• a server that calculates the dimensions of the actual space shown in the input image based on the reference object information, calculates distances between at least one of:
• detected occupants, and classifies each occupant as being within a determined area of interest;
• and
• a picture and a user input reference marker and provides identification and quantification of space use at a sub room level of granularity.