1. A method performed by an application executing on a computer system, the method comprising: receiving at least two sets of digital images including a first set of digital images for which image acquisition times are known and a second set of digital images for which image acquisition times and image acquisition locations are known; overlaying waypoint identifiers over a map image, the waypoint identifiers corresponding to geographical coordinates and time acquisitions of one or more of the second set of images; receiving from a human user of the application a waypoint selection of the overlaid waypoint identifiers and one or more image selections of the first set of images; in response to receiving the selections, associating the selected ones of the first set of images with the selected waypoint; and generating a trip-descriptor including the first set of images associated with the overlaid waypoint identifiers.