1. A method for determination of human behavior by sequential event detection, the method comprising: a programmable device constructing a temporal-event graph comprising a plurality of vertices each representing one each of a first primitive image of a plurality of individual primitive images parsed from a video stream, a first idle state associated with the first primitive image, a second primitive image of the plurality of parsed primitive images adjacent to the first primitive image, and a second idle state associated with the second primitive image, the constructing a function of an edge set between the adjacent first and second primitive images and an edge weight, the edge weight set as a function of a discrepancy between computed visual features within regions of interest common to the adjacent first and second primitive images; and determining a human activity event as a function of a shortest distance path of the temporal-event graph vertices.