Image capturing device performing divided exposure
AssigneeMinolta Co., Ltd.
InventorsKunihiko Sugimoto, Hiroaki Kubo
Life of this patent
Estimating the term…
Abstract
A digital camera obtains a plurality of images by performing divided exposure of the CCD image sensor, and generates a shot image of the subject by composing the images. When divided exposure is performed, preset one mode is identified from among an image quality priority mode and a shooting speed priority mode. Then, by dividing the set exposure time at the time of shooting by the number of divisions defined by the identified mode, divided exposure control of the CCD image sensor is performed. The number of divisions in the image quality priority mode is larger than that in the shooting speed priority mode.
Claims18
An image capturing device obtaining a plurality of images by performing divided exposure of an image sensor for forming a subject image, comprising:
- a selector for selecting one of an image quality priority mode in which the number of divisions at the time of divided exposure is set to a first value and a shooting speed priority mode in which the number of divisions is set to a second value lower than the first value;
- a controller for performing, when exposure of the image sensor is performed, a divided exposure control of the image sensor by dividing a set exposure time at the time of shooting by the number of divisions defined by the mode selected by the selector;
- and
- an image generator for generating a shot image of the subject by composing the plurality of images obtained by the divided exposure.
An image capturing method obtaining a plurality of images by performing divided exposure of an image sensor for forming a subject image, comprising the steps of:
- selecting one of an image quality priority mode in which the number of divisions at the time of divided exposure is set to a first value and a shooting speed priority mode in which the number of divisions is set to a second value lower than the first value;
- performing, when exposure of the image sensor is performed, a divided exposure control of the image sensor by dividing a set exposure time at the time of shooting by the number of divisions defined by the selected mode;
- and
- generating a shot image of the subject by composing the plurality of images obtained by the divided exposure.
An image capturing device, comprising:
- an image sensor for forming a subject image;
- a first selector for selecting a bulb shooting mode;
- an exposure time determiner for determining a unit exposure time in the bulb shooting mode;
- a controller for repetitively performing divided exposure of the image sensor every unit exposure time during the bulb shooting;
- and
- an image generator for generating a shot image of the subject by composing a plurality of images generated by the divided exposure performed every unit exposure time.
An image capturing method, comprising the steps of:
- forming a subject image;
- selecting a bulb shooting mode;
- determining a unit exposure time in the bulb shooting mode;
- repetitively performing divided exposure of the image sensor every unit exposure time during the bulb shooting;
- and
- generating a shot image of the subject by composing a plurality of images generated by the divided exposure performed every unit exposure time.
An image capturing device obtaining a plurality of images by performing divided exposure of an image sensor for forming a subject image, comprising:
- a shooting condition determiner for determining a shooting condition when a subject is shot;
- a unit exposure time determiner for determining a unit exposure time at the time of the divided exposure in accordance with the shooting condition;
- a controller for performing a divided exposure control of the image sensor every unit exposure time determined by the unit exposure time determiner when exposure of the image sensor is performed;
- and
- an image generator for generating a shot image of the subject by composing the plurality of images obtained by the divided exposure.
An image capturing method obtaining a plurality of images by performing divided exposure of an image sensor for forming a subject image, comprising the steps of:
- determining a shooting condition when a subject is shot;
- determining a unit exposure time at the time of the divided exposure in accordance with the shooting condition;
- performing a divided exposure control of the image sensor every unit exposure time determined when exposure of the image sensor is performed;
- and
- generating a shot image of the subject by composing the plurality of images obtained by the divided exposure.
Dependencies are inferred from the claim text.