Patent ID: 8743200

Claim:
A system for monitoring a patient, comprising: a video camera that captures images of a patient location; a video processing device coupled with the video camera, the video processing device configured to: receive a substantially live sequence of the captured images; compare each image of the sequence of images with one or more preceding images to determine a sequence of motion levels associated with the sequence of images, each motion level of the sequence of motion levels representing an amount of change for at least one region of the each image relative to the at least one region of the one or more preceding images; compare the sequence of motion levels associated with the sequence of images to a motion threshold; determine a motion alert level signal based on the comparison by increasing the motion alert level signal responsive to determining that a first one or more motion levels of the sequence of motion levels exceeds the motion threshold and decreasing the motion alert level signal responsive to determining that a second one or more motion levels of the sequence of motion levels is less than the motion threshold; compare the motion alert level signal with a motion alarm threshold; and generate a motion alarm signal based at least in part on determining that the motion alert level signal exceeds the motion alarm threshold.