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Imaging device and imaging method

A technology of camera device and camera department, which is applied in the direction of image communication, TV, color TV parts, etc., and can solve the problems of whitening and unobtainable images

Active Publication Date: 2015-07-22
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As above, the aperture value, ISO sensitivity, and shutter speed used to control exposure have boundaries, and depending on the combination of aperture value, ISO sensitivity, and shutter speed within the boundary range, it may not be possible to obtain an image that meets the user's intention as a photographer.
For example, in the case of shooting a subject with high brightness such as the sun, even if the aperture is narrowed to F22, the ISO sensitivity is set to the lowest sensitivity, and the shutter speed is set to the highest speed, sometimes the captured image will appear blurry. White

Method used

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  • Imaging device and imaging method
  • Imaging device and imaging method
  • Imaging device and imaging method

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Embodiment Construction

[0023] Hereinafter, preferred embodiments will be described with reference to the drawings using a digital camera to which the present invention is applied. The camera according to the preferred embodiment of the present invention is a digital camera. As an overview, the image data based on the image signal read out from the image sensor is displayed on the display in a live view, and the recording is performed according to the operation of releasing the button. The image data processed by the image is recorded in the external memory.

[0024] In addition, in the shooting setting of the camera, when the digital ND mode is set, when shooting based on the set shutter speed, shooting is performed by split exposure in the case of high brightness, and by split exposure The additive synthesis of the obtained images. In addition, also in the shooting settings of the camera, when the extended low-sensitivity ISO mode is set manually or automatically, the image output becomes saturate...

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Abstract

An imaging device of the present invention comprises an additive combination for subjecting image data to additive combination, a gain application section for applying minus gain image data that has been subjected to additive combination by the additive combination section, an additive combination section for, at the time of imaging in the imaging section, respectively subjecting a plurality of image data, that have been acquired by divided exposure at the divided exposure time, to additive combination to create combined image data, and a gain application section for applying the minus gain to the combined image data to create taken image data.

Description

technical field [0001] The present invention relates to an imaging device and an imaging method capable of photographing a high-brightness subject in an imaging device such as a digital camera, and having increased degrees of freedom in exposure conditions for obtaining an appropriate exposure. Background technique [0002] In conventional imaging devices such as digital cameras, exposure is controlled by changing the aperture value, ISO sensitivity, shutter speed, and the like. The setting range of the aperture value (usually represented by the numerical aperture F value) is limited within a limited range in order to maintain the optical performance of the lens such as MTF (Modulation Transfer Function: a value related to resolution) . Among the products currently on the market, it is usually in the range of about F1.0 to F22. [0003] In addition, the boundary between the low-sensitivity side and the high-sensitivity side of ISO sensitivity is determined by the performan...

Claims

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Application Information

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IPC IPC(8): H04N5/235H04N5/243
CPCH04N5/2352H04N5/2353H04N5/2355H04N5/243H04N23/72H04N23/741H04N23/76H04N23/73
Inventor 岩崎宏明
Owner OLYMPUS CORP