ABSTRACT
Taking video of a sports performance may be thought of as the process of capturing or recording multiple images, or frames, in a time sequence of the performance. The sequence of images can be replayed in a video “movie” or as single still images. By contrast multiple images not taken in a time sequence can only be viewed as still images, perhaps in a time series. The video may be recorded in analogue or digital format. A typical analogue format would be a VHS cassette or mini-cassette. Typical digital formats would be as mini-DV cassette or direct to computer via firewire, or by Cameralink or Ethernet. Digital formats have particular advantages in that the images can easily be copied and the image quality does not deteriorate. Images may also be readily manipulated in the computer for presentation of movies with headers, transitions, music etc by many available moviemaker software packages. Other examples of computer manipulation might be compression, for reduced storage space of video records, or changes in format to reduce the image recording size and increase access speeds. Compression and changes in format are likely to reduce the quality of the digital image.
