Camera having target follow up function

Details Camera having target follow up function Camera having target follow up function

1994-01-27

1995-12-12

Adams, Russell E.

3541951, G03B 708

Patent

active

054754666

ABSTRACT:
Normally, movement of an object to be photographed is detected based upon the brightness information output by a photometric means, and the object to be photographed is followed up. During the exposure process the photometric means cannot perform photometry, and therefore the movement of the object to be photographed during exposure is predicted based upon the movement information for the object to be photographed detected before the start of the exposure process, and the position of the object to be photographed after the conclusion of the exposure process is obtained. When the exposure process has been completed, follow up of the object to be photographed is restarted from the predicted position which has been calculated. By doing this, the object to be photographed is not lost sight of after the exposure process has been completed, and it is possible to continue follow up of the object to be photographed from its predicted position.
Further, when follow up of the object to be photographed by the follow up means has become impossible, forcibly the initial state before the start of follow up may be returned to. By doing this, the follow up target object can be again discerned in the initial state etc., and the photographer is able quickly to proceed to the next action.

REFERENCES:
patent: 4929844 (1990-05-01), Miyazaki
patent: 5031049 (1991-07-01), Toyama et al.
patent: 5196929 (1993-03-01), Miyasaka
patent: 5210559 (1993-05-01), Ohki
patent: 5210566 (1993-05-01), Nishida
patent: 5255044 (1993-10-01), Ishiguro
patent: 5349415 (1994-09-01), Nishida

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