Television – Image signal processing circuitry specific to television – Special effects
Reexamination Certificate
1998-01-16
2001-11-20
Lee, Michael (Department: 2614)
Television
Image signal processing circuitry specific to television
Special effects
C348S586000
Reexamination Certificate
active
06320624
ABSTRACT:
TECHNICAL FIELD
The present invention relates to visual displays and, more specifically, to time-dependent visual displays.
BACKGROUND OF THE INVENTION
In video displays, e.g. in sports-related television programs, special visual effects can be used to enhance a viewer'appreciation of the action. For example, in the case of a team sport such as football, instant replay affords the viewer a second chance at “catching” critical moments of the game. Such moments can be replayed in slow motion, and superposed features such as hand-drawn circles, arrows and letters can be included for emphasis and annotation. These techniques can be used also with other types of sports such as racing competitions, for example.
With team sports, techniques of instant replay and the like are most appropriate, as scenes typically are busy and crowded. Similarly, e.g. in the 100-meter dash competition, the scene includes the contestants side-by-side, and slow-motion visualization at the finish line brings out the essence of the race. On the other hand, where starting times are staggered e.g. as necessitated for the sake of practicality and safety in the case of certain racing events such as downhill racing or ski jumping, the actual scene typically includes a single contestant.
SUMMARY OF THE INVENTION
For enhanced visualization, by the sports fan as well as by the contestant and his coach, displays are desired in which the element of competition between contestants is manifested. This applies especially where contestants perform sole as in downhill skiing, for example, and can be applied also to group races in which qualification schemes are used to decide who will advance from quarter-final to half-final to final.
We have recognized that, given two or more video sequences, a composite video sequence can be generated which includes visual elements from each of the given sequences, suitably synchronized and represented in a chosen focal plane. For example, given two video sequences with each showing a different contestant individually racing the same down-hill course, the composite sequence can include elements from each of the given sequences to show the contestants as if racing simultaneously.
A composite video sequence can be made also by similarly combining one or more video sequences with one or more different sequences such as audio sequences, for example.
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Ayer Serge
Vetterli Martin
Businger Peter A.
Ecole Polytechnique Fédérale
Lee Michael
LandOfFree
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