IMAGE SYSTEM WITH VIRTUAL VISUAL POINT

Japanese Patent JPH1127577

A

PROBLEM TO BE SOLVED: To generate a virtual image at an arbitrary visual point and to generate an image full of presence in real time by allowing a system to have a means that compares a camera image with a background image photographed in advance for extracting an object, magnifying and modifying an image of the object, and compositing the image on a still background. SOLUTION: An image of a camera 1 through a zoom lens 2 is written in a frame memory 8. An image only of a background photographed at the position of the camera is read from a storage device, in which an image database 5, is constructed and written in a frame memory 6. The contents of the two frame memories are compared by a compactor circuit 9, matching consents are discriminated as a background and other parts are discriminated as an object, and only the object contents are transferee to a frame memory 10. An image signal in the frame memory is given to an image conversion circuit 11, where processing such as modification or magnification is conducted, based on the position and angle of a virtual camera and the result is written in a frame memory 7 in which only the background is overwritten.

KIMURA JUNICHI
KINOSHITA YASUAKI
IZAWA YUJI

JP17353097A

January 29, 1999

June 30, 1997

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HITACHI LTD

H04N5/262; G06T1/00; G06T3/00; G09G5/36; G09G5/377; (IPC1-7): H04N5/262; G06T1/00; G09G5/36

Ogawa Katsuo

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