Automatic projection focusing

Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can...

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Bibliographische Detailangaben
Hauptverfasser:	CHANG SAMUEL HENRY, YAN RENWEI, YAO NING, SOYANNWO OLUSANYA T, CRUMP EDWARD DIETZ, WANG WEIJIAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR AMUSEMENTS APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CALCULATING CARD, BOARD, OR ROULETTE GAMES CINEMATOGRAPHY COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY GAMES GAMES NOT OTHERWISE PROVIDED FOR HOLOGRAPHY HUMAN NECESSITIES IMAGE DATA PROCESSING OR GENERATION, IN GENERAL INDOOR GAMES USING SMALL MOVING PLAYING BODIES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SPORTS VIDEO GAMES
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Beschreibung
Zusammenfassung:	Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.