Shooting device

Abstract

The present invention provides a shooting device which can expand a dynamic range, reduce the difference of the jitter amplitudes between a long-time exposure image and a short-time exposure image, and reduce the disharmony of a synthetic image, thereby improving the image quality. The shooting device includes: a pixel region (3) in which multiple unit pixels are two-dimensionally arranged in a matrix; and a timing generator (2) configured to control application timings of a reset signal and a read signal to be supplied to the pixel region (3). During a period for performing a long-time-period exposure once for a first pixel group constituted by multiple unit pixels arranged in odd number rows of the pixel region (31), a short-time-period exposure is performed multiple times for a second pixel group constituted by multiple unit pixels arranged in the even number rows of the pixel region (31).

Description

[0001] References to Related Applications: This application enjoys the priority of Japanese Patent Application No. 2012-201998 filed on September 13, 2012, and the entire content of the Japanese Patent Application is used in this application. technical field [0002] Embodiments of the present invention relate to an imaging device. Background technique [0003] In imaging devices such as digital cameras, an image sensor measures light energy (exposure amount) based on the intensity of light emitted by a subject, and determines the brightness of each pixel on an image. The range of the exposure amount that can be measured by the image sensor (hereinafter referred to as the dynamic range) depends on the charge amount (saturation charge amount) that can be stored in each pixel. [0004] In general, cameras have a narrower dynamic range than the human eye. Therefore, there is a problem that if a subject with a large difference between light and shade is photographed, the charge...

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that if a subject with a large difference between light and shade is photographed, the amount of charge accumulated in the pixels corresponding to the brighter part of the subject exceeds the saturation charge amount, and the captured image becomes larger. The details in the bright part of the medium will become invisible

[0008] However, in these methods, since the imaging time for imaging the subject to obtain a long-time exposure image does not coincide with the imaging time for obtaining a short-time exposure image, the subject in the captured image The shake amplitude of the subject will be different

Therefore, there is a problem that the composited image becomes an image with a sense of incongruity (a sense of incongruity) especially in the case of imaging a moving subject.

Images