Of particular use in surveillance applications is the ability to perform a dense 3D reconstruction of a scene and storing data over a period of time, so that operators can view events as they unfold over any period of time (including the current moment) from any arbitrary viewpoint in the covered area, even allowing them to "fly" around the scene in real time.
In surveillance, this capability is particularly useful because it enables the creation of a detailed 3D model of a scene and the recording of data over time. This allows operators to review events as they occur across any timeframe, including the current moment, from any angle within the monitored area, even permitting them to explore the scene in real-time.