1. A patient monitoring system for monitoring a patient area, the system comprising: a sensor configured to output a plurality of frames, the plurality of frames containing three dimensional information of the patient area, wherein the three dimensional information comprises a plurality of pixels; a user interface; and control circuitry configured to: receive the three dimensional information of the plurality of frames; identify a location of a patient support surface based on the three dimensional information; segment the plurality of pixels into a plurality of two dimensional planes including one or more contiguous planar and curved surfaces that are extended in one or more dimensions from the location of the patient support surface; set at least one threshold on at least one of a two dimensional plane selected from the plurality of two dimensional planes, the threshold including one or more areas beyond the one or more contiguous planar and curved surfaces that are extended in one or more dimensions from the location of the patient support surface; identify one or more patient locations based on the three dimensional information; compare the one or more patient locations to the at least one threshold; and generate an output with the user interface based on the one or more patient locations traversing the at least one threshold.