7. The method of claim 1 , further comprising: calculating a rank for a first entity of the entities identified in the first portion based on an amount of time the first entity appears in the images.
7. The method of claim 1 , further comprising: calculating a rank for a first entity of the entities identified in the first portion based on an amount of time the first entity appears in the images. 8. The method of claim 7 , wherein calculating the rank includes: determining that a location of the first entity remains constant; and downgrading the rank in response to the determining.