Method for measuring subject distance

Details Method for measuring subject distance Method for measuring subject distance

2011-05-24

2011-05-24

Perkey, W. B. (Department: 2862)

Photography

With exposure objective focusing means, focusing aid, or...

C396S106000

Reexamination Certificate

active

07949244

ABSTRACT:
An exemplary method for measuring a distance from a subject to a camera includes the following operations: focusing on the subject using the imaging system; illuminating an area on the subject using auxiliary light; capturing an image of the subject, the image having an illumination portion corresponding to the illuminated area; measuring the area of the illumination portion of the image; and calculating the subject distance based on the measured area.

REFERENCES:
patent: 2524807 (1950-10-01), Kallmann
patent: 4065778 (1977-12-01), Harvey
patent: 4382665 (1983-05-01), Eguchi et al.
patent: 4460259 (1984-07-01), Greivenkamp et al.
patent: 4771308 (1988-09-01), Tejima et al.
patent: 5673111 (1997-09-01), Nyquist
patent: 5748295 (1998-05-01), Farmer
patent: 6407817 (2002-06-01), Norita et al.
patent: 6411371 (2002-06-01), Hinderling et al.
patent: 6442345 (2002-08-01), Kindaichi
patent: 6507707 (2003-01-01), Nonaka
patent: 6625397 (2003-09-01), Nagata
patent: 6718134 (2004-04-01), Murata et al.
patent: 6826362 (2004-11-01), Matsuo
patent: 2003/0164890 (2003-09-01), Ejima et al.
patent: 2005/0207619 (2005-09-01), Lohmann
patent: 2006/0018650 (2006-01-01), Ichimiya
patent: 2006/0066723 (2006-03-01), Iwase et al.
patent: 2007/0122137 (2007-05-01), Ohnishi
patent: 2008/0150889 (2008-06-01), Stern et al.
patent: 2009/0027522 (2009-01-01), May

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