Television – Image signal processing circuitry specific to television – Special effects
Patent
1997-04-04
2000-02-22
Lee, Michael H.
Television
Image signal processing circuitry specific to television
Special effects
348580, 348581, 348583, 345118, H04N 5262
Patent
active
060286458
ABSTRACT:
A digital video effects apparatus has a graphical user interface having a display upon which is produced a video image within a predetermined shape, the video Image being rotated in time and space to represent a 3-dimensional effect. Control points are set by a user together with rotation angles and x-y scaling parameters of the video image. The apparatus interpolates between the control points to provide a smooth transition from control point to control point. The video image is zoomed in and out as the video image changes orientation and/or size so that the video image substantially fills an image area of the graphical user interface display. In the invention the video image is tracked on the GUI display even when it is outside the normally visible screen area.
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Banks Nicholas
Reid Paul J.
Desir Jean W.
Gray Francis I.
Lee Michael H.
Tektronix Inc.
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