US 2014/0211985 A1 · Image-Based Occupancy Sensor

Abstract

An image-based occupancy sensor includes a motion detection module that receives and processes an image signal to generate a motion detection signal, a people detection module that receives the image signal and processes the image signal to generate a people detection signal, a face detection module that receives the image signal and processes the image signal to generate a face detection signal, and a sensor integration module that receives the motion detection signal from the motion detection module, receives the people detection signal from the people detection module, receives the face detection signal from the face detection module, and generates an occupancy signal using the motion detection signal, the people detection signal, and the face detection signal, with the occupancy signal indicating vacancy or occupancy, with an occupancy indication specifying that one or more people are detected within the monitored volume.

Claims20

Dependent claims

An image-based occupancy sensor, comprising:

a motion detection module that receives an image signal of a monitored volume comprising a sequence of image frames and processes the image signal to generate a motion detection signal;
a people detection module that receives the image signal and processes the image signal to generate a people detection signal;
a face detection module that receives the image signal and processes the image signal to generate a face detection signal;
and
a sensor integration module that receives the motion detection signal from the motion detection module, receives the people detection signal from the people detection module, receives the face detection signal from the face detection module, and generates an occupancy signal using the motion detection signal, the people detection signal, and the face detection signal, with the occupancy signal indicating vacancy or occupancy, with an occupancy indication specifying that one or more people are detected within the monitored volume.

2 more elements

An image-based occupancy sensing method, with the method comprising:

receiving an image signal of a monitored volume comprising a sequence of image frames;
processing the image signal with a motion detection routine and generating a motion detection signal that indicates a presence or absence of motion in the image signal;
processing the image signal with a people detection routine and generating a people detection signal that indicates a presence or absence of one or more people in the image signal;
processing the image signal with a face detection routine and generating a face detection signal that indicates a presence or absence of one or more faces in the image signal;
and
generating an occupancy signal using the motion detection signal, the people detection signal, and the face detection signal, with the occupancy signal indicating vacancy or occupancy, with an occupancy indication specifying that one or more people are occupying the monitored volume.

3 more elements

Dependencies are inferred from the claim text.

Image-Based Occupancy Sensor

Life of this patent

Image-Based Occupancy Sensor

Life of this patent

Abstract

Claims20