Apparatus and a method for automatically centering a video...

Details Apparatus and a method for automatically centering a video... Apparatus and a method for automatically centering a video...

H - Electricity

04

N

350/56

H04N 5/44 (2006.01) H04N 5/262 (2006.01)

Patent

CA 2013343

RCA 84,282 Abstract of the Disclosure A video zoom and pan system is disclosed in which a viewer may specify a portion of a source image to be magnified by incrementally changing a center point - relative to the source image - for the magnified image, and a magnification factor. The viewer may pan around the source image, by changing the center point, to select the portion to be magnified. The system monitors the relative values of the center point coordinates and the magnification factor and adjusts the center point coordinates to prevent blanking intervals of the source image from being displayed as part of the magnified image. The invention is described in terms of three embodiments, two hardware embodiments, which use sub-pixel resolution in specifying the center point, and a combined hardware-software embodiment in which the center point is specified with multi-pixel resolution.

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