ABSTRACT
High-speed photography is a technique of taking pictures of things that happen with very fast action. It may involve either the taking of still photographs that freeze motion, or the recording of an event using video at an increased frame rate sometimes referred to as slow-motion video. High-speed photography is useful for documenting action that is too fast for the human eye to see, such as blood droplets, guns firing, or the impact of an instrument. Time-lapse photography is the opposite of high-speed photography, as it speeds up an event. Time-lapse photography can be a useful tool when photographing an event that occurs over a longer period of time. An example of an event that can benefit from time-lapse photography would be construction (forensic engineering), a crime scene search or archaeological dig, or a decomposition study. Many times but not always, time-lapse images are displayed as videos that allow the event to be watched in accelerated time.
