Document camera having zoom-indication function

A document camera (200, 400) is used to show image of an object (2) on a display (22). In the document camera (200, 400), a first image data of the object obtained by a video-capturing device (201, 401) is derived into a second image data and a third image data by an image processor (202, 4021) in r...

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Bibliographic Details
Main Authors HUNG, POIH, CHEN, JUNG-YU, WU, JIUN-SHIN, WU, YUNG-HSI
Format Patent
LanguageEnglish
French
German
Published 02.12.2009
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A document camera (200, 400) is used to show image of an object (2) on a display (22). In the document camera (200, 400), a first image data of the object obtained by a video-capturing device (201, 401) is derived into a second image data and a third image data by an image processor (202, 4021) in response to a zoom operation, wherein the second image data results in a zoomed image (31) of the object (2) and the third image data results in a scaled image (32) of the object (2). In response to the zoom operation, there is also a mark frame data generated by a position information controller (203, 4023), which results in a mark frame (34). The zoomed image (31), scaled image (32) and mark frame (34) are then synthesized into a combined image (33) by an image synthesizer(204, 4022), and the mark frame (3031) superimposes the scaled image (303) to indicate a result of the zoom operation.
Bibliography:Application Number: EP20050022589