It is fundamental to any kind of video analysis and video
application since it enables segmentation of a video into its basic
components: the shots.
ClassificationFades: a scene gradually appears (fade-in) or is a
scene gradually disappear (fade-out).Dissolves: A dissolve is a
gradual transition from one scene to another, in which the first
scene fades out and the second scene fades in.Wipe: another common
scene break is a wipe, in which a line moves across the screen,
with the new scene appearing behind the line.
*Germys movie
FadesDuring a fade, images have their intensities multiplied by
some value . During a fade-in, increases from 0 to 1, while during
a fade-out decreases from 1 to 0.
*Qiangs movie
DissolvesCombination of fade-in and fade-out.
Zhang et al. developed a twin-comparison technique that can
detect normal camera breaks and gradual transitions. The
twin-comparison technique requires the use of two difference
thresholds: the threshold Tb used to detect normal camera breaks,
and a second lower threshold Ts to detect the potential frames
where a gradual transition may occur.
The success rate of correctly detecting gradual transition is
below 16%.
Yu and Wolf proposed a shot detection technique based on wavelet
transformation. their technique is based on the assumption that
during fade-in, fade-out, and dissolve, the high frequency
component of the image is reduced.
