Patent attributes
Methods and apparatus to detect people are disclosed. An example method includes detecting a first human pulse waveform in first light information associated with a first one of a plurality of segments of an environment, the light information obtained from a light sensor. Generating a first presence indication in response to respective light information associated with a threshold amount of the segments proximate the first one of the segments includes the first human pulse waveform identified in the first one of the segments. Identifying a first location associated with a face in the environment using thermal imaging data from a thermal sensor. Adjusting a people count in response to the first location associated with the face not corresponding to a second location associated with the first presence indication.
