Patent attributes
Methods and apparatus to monitor environments are disclosed. An example method includes triggering a two-dimensional recognition analysis, in connection with a first frame of data, on two-dimensional data points representative of an object detected in an environment, the triggering based on satisfying a first trigger event, the first trigger event one of (1) a distance between the object and a sensor of the environment satisfying a threshold distance, or (2) elapsing of a time interval. In response to determining that the object is recognized as a person in the first frame, triggering the two-dimensional recognition analysis in connection with a second frame, the second frame subsequent to the first frame, the two-dimensional recognition analysis of the second frame performed on two-dimensional data points representative of a location in the second frame corresponding to the location of the person in the first frame.
