week 3

the issue of the difference of video and movie continued in the discussion of of the techniques of dealing the picture quality of a video signal - the two of them are interlaced and progressive techniques:

interlaced technique uses the method of displaying odd and even numbers of the lines in a picture separately, the advantages of this is the lower bandwidth requirement comparing to the progressive technique, however fast moving objects captured with this technique make the actual lines visible when played on the screen, plus as opposed to progressive video format frames cannot be used as still images

talking about fast moving objects it is important to mention the high speed film cameras that are capable to grab up to 200 m frames per second which results in high quality still images of fast moving objects and gives very beautiful slowed down moments of e.g. water drops, hits (in action movies) etc

example:

frames from Motley Crue music video - Saints of Los Angeles

music video: