Activity recognition systems and methods

An activity recognition device having a processor, wherein, upon execution of software instructions stored on a non-transitory computer readable medium, the processor:

• captures a digital representation comprising at least video data of an observable activity of at least one object;
• generates from the digital representation, using at least one feature detection algorithm, a plurality of features related to the observable activity;
• establishes an observed activity data object based on the plurality of features;
• determines a similarity for the observed activity data object relative to at least one known activity data object based on a context relevant to the plurality of features;
• accesses an activity recognition results set based on the similarity;
• and
• triggers an action based on the activity recognition results set,
• wherein a known activity associated with the at least one known activity data object includes at least one of a body movement, an interaction, a hand movement, and a facial movement or expression.

A non-transitory computer readable medium comprising instructions executable by a computer processor to perform activity recognition by performing operations comprising:

• capturing a digital representation comprising at least video data of an observable activity of at least one object;
• generating from the digital representation, using at least one feature detection algorithm, a plurality of features related to the observable activity;
• establishing an observed activity data object based on the plurality of features;
• determining a similarity for the observed activity data object relative to at least one known activity data object based on a context relevant to the plurality of features;
• accessing an activity recognition results set based on the similarity;
• and
• triggering an action based on the activity recognition results set,
• wherein a known activity associated with the at least one known activity data object includes at least one of a body movement, an interaction, a hand movement, and a facial movement or expression.