Title:
IMAGE PICKUP DEVICE AND CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2014023062
Kind Code:
A
Abstract:
To provide an image pickup device capable of determining exposure conditions for multiple images used in high dynamic range synthesis in a short time with high accuracy on the basis of photographed images.
A dynamic range of a scene is calculated from luminance information obtained from an image photographed at appropriate exposure suitable to a priority luminance area in high dynamic range photographing and luminance information obtained from an image photographed at overexposure or underexposure relative to the appropriate exposure. A photographing exposure width for a plurality of images necessary to produce a high dynamic range image is determined according to the calculated dynamic range.
Inventors:
NASHIZAWA HIROAKI
Application Number:
JP2012161966A
Publication Date:
February 03, 2014
Filing Date:
July 20, 2012
Export Citation:
Assignee:
CANON KK
International Classes:
H04N5/235; G03B7/091; G03B15/00; H04N5/238; H04N101/00
Domestic Patent References:
JP2004007298A | 2004-01-08 | |||
JP2011024088A | 2011-02-03 | |||
JP2002223387A | 2002-08-09 | |||
JP2002247361A | 2002-08-30 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu