Display device on/off detection methods and apparatus
AssigneeThe Nielsen Company (US), LLC
InventorsChristen V. Nielsen, Dan Nelson
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Abstract
Display device ON/OFF detection methods and apparatus are disclosed. Example display activity detectors disclosed herein are to extract regions from respective ones of captured video frames, the regions corresponding to a depiction of a display of a monitored media device Disclosed example display activity detectors are also to compute a distance metric that is to represent an amount a first one of the regions of a first one of the captured video frames differs from a corresponding second one of the regions of a second one of the captured video frames. Disclosed example display activity detectors are further to compare the distance metric to a threshold to determine whether the monitored media device is ON or OFF.
Claims20
An apparatus comprising:
- at least one memory;
- computer readable instructions;
- and
- processor circuitry to execute the computer readable instructions to at least:
- access sensed data corresponding to at least one output of a presentation device;
- determine a plurality of individual metrics based on the sensed data, ones of the individual metrics to represent respective individual decisions of an operational state of the presentation device;
- and
- output a comprehensive decision metric that indicates whether the presentation device is in an ON state or an OFF state, the comprehensive decision metric based on a combination of the plurality of individual metrics, the combination based on at least one of a weighting of the plurality of individual metrics or a majority vote of the plurality of individual metrics.
An apparatus comprising:
- means for determining a plurality of individual metrics based on sensed data corresponding to at least one output of a presentation device, ones of the individual metrics to represent respective individual decisions of an operational state of the presentation device;
- and
- means for determining a comprehensive decision metric that indicates whether the presentation device is in an ON state or an OFF state, the comprehensive decision metric based on a combination of the plurality of individual metrics, the combination based on at least one of a weighting of the plurality of individual metrics or a majority vote of the plurality of individual metric.
A method comprising:
- accessing sensed data corresponding to at least one output of a presentation device;
- determining, by executing an instruction with at least one processor, a plurality of individual metrics based on the sensed data, ones of the individual metrics representing respective individual decisions of an operational state of the presentation device;
- and
- outputting, by executing an instruction with the at least one processor, a comprehensive decision metric that indicates whether the presentation device is in an ON state or an OFF state, the comprehensive decision metric based on a combination of the plurality of individual metrics, the combination based on at least one of a weighting of the plurality of individual metrics or a majority vote of the plurality of individual metrics.
Dependencies are inferred from the claim text.