Image pickup apparatus and method for broadening apparent...

Details Image pickup apparatus and method for broadening apparent... Image pickup apparatus and method for broadening apparent...

2005-10-04

2005-10-04

Garber, Wendy R. (Department: 2612)

Television

Camera, system and detail

Optics

C340S286080, C340S286080, C340S286080

Reexamination Certificate

active

06952234

ABSTRACT:
An image pickup method and an image pickup apparatus are provided which can pick up an image with a broad substantial dynamic range even with a video camera or the like which is likely to be subject to image shifts. In increasing an apparent dynamic range of a video signal by synthesizing a single image from a plurality of images sequentially picked up at different exposure amounts, if a difference between a motion vector between pixels in a plurality of images and a motion vector between images is larger than a predetermined threshold value, the pixel is not used for synthesization. Even a video signal having an image shift caused by a motion of an object itself or hand vibration can be subjected to a practically usable dynamic range increasing process.

REFERENCES:
patent: 4272787 (1981-06-01), Michael et al.
patent: 5162914 (1992-11-01), Takahashi et al.
patent: 5235427 (1993-08-01), Kim
patent: 5949481 (1999-09-01), Sekine et al.
patent: 6130709 (2000-10-01), Sekine et al.

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