Olympus Corporation

Masatoshi Noda

Takashi Hamada

Takeshi Kindaichi

An acquisition method includes: acquiring a first image without a flicker band; acquiring a second image with the flicker band; generating a third image of an extracted flicker band based; determining a division method of dividing the third image; dividing the third image into a plurality of areas based on the division method; calculating brightness of each area of the third image; acquiring at least one of a brightest value of the brightness and a darkest value of the brightness; acquiring peak timing of the flicker; calculating the number of frames captured by an image sensor to detect the peak timing; causing the image sensor to continuously capture images to generate a plurality of pieces of image data; acquiring the first image from the plurality of pieces of image data; and acquiring the second image from the plurality of pieces of image data.

Acquisition method, computer readable recording medium and image apparatus

An imaging device, comprising an image sensor, an imaging control circuit that controls an integration time of the image sensor, and a controller comprising a flicker component detection section that detects flicker components, and a flicker determination section that determines existence of flicker, wherein the flicker component detection section is provided with a plurality of detection regions in an imaging region of the image sensor along a scanning direction for an electronic shutter function, and detects flicker components from differences in brightness relating to the same detection region based on a plurality of imaging outputs that have been acquired by performing integrating at the same integration time with different frames, and the flicker determination section changes a determination value for determining the existence of flicker in accordance with an imaging mode, and performs determination by comparing the flicker component and the determination value.

Imaging device and flicker determination method

An imaging device, comprising: an image sensor that forms a subject image by means of an optical system, and a processor that comprises a flicker streak detection section and a determination section, wherein the flicker streak detection section divides an imaging range of the image sensor into a plurality of regions, performs photometry of the regions that have been divided based on an pixel signal output by the image sensor, and detects divided regions in which it is expected that flicker streaks exist, and the determination section determines whether or not it was possible to detect flicker streaks using the flicker streak detection section, wherein the flicker streak detection section, in a case where it has been determined by the determination section that it was not possible to detect flicker streaks, reduces area of the divided regions and detects divided regions in which it is expected that flicker streaks will exist.

Imaging device and flicker detection method

A photographing apparatus, comprising: an imaging optical system; an image sensor which receives a light flux passing through the imaging optical system, captures an image, and outputs an imaging signal; an aperture which is included in the imaging optical system and which includes an opening to restrict the light flux; a controller which performs a first exposure control to control the exposure of the image sensor by changing the opening of the aperture and calculates, based on an imaging signal output by the image sensor, a deviation between an optimal exposure amount and a currently set actual exposure amount; and an imaging control circuit which performs a second exposure control to control the exposure of the image sensor without changing the opening of the aperture, wherein the controller selects either the first exposure control or the second exposure control based on the deviation to control exposure.

Photographing apparatus and photographing method

An imaging apparatus, comprising a lens unit having a photographing optical system, and a body having an image sensor for generating a pixel signal by imaging subject light that has passed through the photographing optical system, comprising an exposure control section for adjusting exposure amount for image data based on a pixel signal generated by the image sensor, by transmitting an aperture control signal to the aperture control section and changing opening of the aperture, and a determination section for determining whether or not the aperture control section is able to control opening of the aperture based on information from the lens unit, wherein the exposure control section does not transmit aperture control signals to the aperture control section when it is determined by the determination section that the aperture control section is able to control opening of the aperture.

Imaging apparatus and imaging method

An imaging device includes an imaging section, a main subject detecting section, a main subject color determining section, a background color setting section, an exposure control section, and a photography control section. The imaging section images a subject. The main subject detecting section detects a region of a main subject in image data. The main subject color determining section determines a color of the region of the main subject. The background color setting section sets a color of a region that becomes a background of the region of the main subject. The exposure control section sets an exposure setting value in accordance with the color of the region that becomes the background. The photography control section controls main imaging in accordance with the exposure setting value.

Growing community of inventors

Hachioji, Japan

Masatoshi Noda