Fujifilm Corporation

Atsushi Kawanago

Yasunobu Kishine

Kazuyoshi Okada

Tetsuya Fujikawa

Shinichiro Fujiki

Junichi Tanaka

Yuya Hirakawa

Shuhei Matsushita

Daigo Aiba

Naoki Nishimoto

An imaging method of imaging a subject through a multispectral camera including a processor, includes: causing the processor to perform: a data acquisition step of acquiring first spectral data of a first subject, second spectral data of a second subject, and third spectral data of a third subject; a wavelength selection step of selecting a plurality of wavelengths from a wavelength region of the acquired first to third spectral data, the wavelength selection step being for determining, as a computational amount, a difference or a ratio between feature amounts of two pieces of spectral data, from among the first spectral data, the second spectral data, and the third spectral data, and obtaining computational amounts to select the plurality of wavelengths; and an imaging step of imaging a subject including at least one of the first subject, the second subject, or the third subject at the plurality of wavelengths.

Imaging method and program

An optical member includes aperture regions, a lens device, and an imaging apparatus. A lens device includes: an imaging optical system; a first polarizing part that polarizes at least a part of rays transmitted through the imaging optical system; and a filter unit that is disposed at a pupil position of the imaging optical system or near the pupil position, and includes aperture regions transmitting the rays of the imaging optical system and including a first aperture region and a second aperture region, wavelength selective filters disposed in the first aperture region and the second aperture region and transmitting pieces of light of which at least a part of wavelength ranges are different from each other, and a second polarizing filter including polarizing filters disposed in the first aperture region and the second aperture region and having polarization directions different from each other.

Optical member, lens device, and imaging apparatus

An imaging support method includes acquiring a focal length of an imaging apparatus, detecting a subject image position of a target subject image showing a target subject in a captured image obtained by capturing an imaging region including the target subject by the imaging apparatus, and performing registration control for setting the detected subject image position to a specific position in the captured image by increasing a ratio of application of an image region movement component compared to a lens moving mechanism in a case where the acquired focal length is greater than or equal to a threshold value, and increasing a ratio of application of the lens moving mechanism compared to the image region movement component in a case where the focal length is less than the threshold value.

Imaging support device that performs registration control for setting a detected subject image position, imaging support system, imaging system, imaging support method, and program

A lens device and an imaging apparatus that can emit illumination light coaxial with a lens optical system are proposed herein. A lens device includes an optical system that includes a first lens and a second lens forming an optical image of a subject; a first optical member that includes a frame that includes a plurality of aperture regions, a plurality of optical filters that include two or more optical filters transmitting lights having at least some wavelength ranges different from each other, and a plurality of polarizing filters that have different polarization directions; and a second optical member that is provided outside the optical system and closer to a subject side than the first optical member and emits illumination light, which is incident from the outside of the optical system, to the subject side via the optical system.

Lens device and imaging apparatus

An imaging device, an adjustment method, and an adjustment program can acquire multispectral images having good image quality. The imaging device is disposed on an image side of another optical system, and includes a multispectral camera that acquires images in a plurality of wavelength ranges, a field lens that relays the other optical system to the multispectral camera, and an adjustment mechanism that adjusts a conjugate relationship between an emission pupil position of the other optical system and an incident pupil position of the multispectral camera. The multispectral camera includes: a wavelength polarizing filter unit that includes an optical member disposed at a pupil position or near the pupil position and including a plurality of aperture regions having different centroids, a plurality of optical filters arranged in the aperture regions, and a plurality of polarizing filters arranged in the aperture regions; an imaging element; and a processor.

Imaging device, adjustment method, and adjustment program

There are provided a lens device, an imaging apparatus, and an imaging method that suppress the occurrence of overexposure by dimming or blocking totally reflected light. The lens device () includes: an optical system (A); a wavelength polarizing filter unit () that is disposed at a pupil position of the optical system (A) or near the pupil position and includes a plurality of aperture regions, a plurality of optical filters that are disposed in the plurality of aperture regions and include two or more optical filters transmitting lights having a part of wavelength ranges different from each other, and a plurality of first polarizing filters that are disposed in the plurality of aperture regions and are at least two first polarizing filters having polarization directions different from each other; and a first circularly polarizing optical element () that is provided between a subject and the wavelength polarizing filter unit.

Lens device for forming image, and imaging apparatus and imaging method with lens device

An imaging support device that supports imaging performed by an imaging apparatus includes an acquisition portion that acquires an in-image shift amount between a predetermined position in a captured image obtained by capturing an imaging region by an imaging element and a position of a target subject image showing a target subject, and a focal length of the imaging apparatus, a derivation portion that derives a movement amount required for moving the position of the target subject image to a specific position by a position adjustment portion which adjusts the position of the target subject image in the captured image, based on the in-image shift amount acquired by the acquisition portion, the focal length acquired by the acquisition portion, and information related to a pixel interval of pixels in the imaging element, and an output portion that outputs the movement amount derived by the derivation portion.

Imaging support device, imaging apparatus, imaging system, imaging support system, imaging support method, and program

An imaging support device includes a processor, and a memory that is connected to or incorporated in the processor, in which the processor is configured to derive information related to inclination of an imaging apparatus with respect to a revolution mechanism that enables the imaging apparatus to revolve about each of a first axis and a second axis intersecting with the first axis as a central axis, based on a time series change in revolution angle of the imaging apparatus, the inclination of the imaging apparatus being inclination in a rotation direction about a third axis intersecting with the first axis and the second axis as the central axis, and adjust a position of a captured image obtained by imaging performed by the imaging apparatus based on the information related to the inclination.

Imaging support device, imaging apparatus, imaging system, imaging support method, and program

Provided are an imaging apparatus and a method capable of capturing a high-quality multi spectral image. The imaging apparatus includes: an optical system that has three or more aperture regions at a pupil position or near the pupil position, each of the aperture regions being provided with a different combination of a polarizing filter and a bandpass filter such that the aperture region transmits light having a combination of a different polarization angle and a different wavelength range; an image sensor in which three or more types of pixels that receive light having different polarization angles are arranged two-dimensionally; and a processor that performs interference removal processing on a signal output from the image sensor and generates an image signal for each of the aperture regions. In a case where the optical system has three or more types of the polarizing filters and the polarizing filters are arranged in an order of the polarization angles, at least one of differences in the polarization angles of the adjacent polarizing filters is different from the others.

Imaging apparatus and method

Provided are an image processing device, an imaging element, an image processing method, and an image processing program that satisfactorily generate a plurality of polarized image data from polarized image data acquired from an imaging element. A processor (B) of an image processing device () performs an acquisition process of acquiring first image data from an imaging element () in which four first-polarizers having different polarization directions are regularly provided on pixels arranged in a two-dimensional manner, a first polarized image data generation process of performing a demosaicing process on the first image data to generate four pieces of first polarized image data having different polarization directions, and a second polarized image data generation process of generating four or less pieces of second polarized image data by using the four pieces of first polarized image data and a relationship between the polarization directions of the four first-polarizers stored in the memory (C).

Image processing device, imaging device, image processing method, and image processing program

An imaging support device includes a detection portion that, by operating a revolution mechanism that causes an imaging apparatus including a variable magnification mechanism to revolve, detects a subject image position of a target subject image showing a target subject in a captured image obtained by capturing an imaging region including the target subject by the imaging apparatus, and a control portion that perform a registration control of setting the subject image position detected by the detection portion to a specific position in the captured image for a captured image obtained by imaging performed by the imaging apparatus in accordance with changing of magnification to a telephoto side by the variable magnification mechanism.

Imaging support device, imaging support system, imaging system, imaging support method, and program

One embodiment according to the technology of the present disclosure provides an optical element, an optical device, an imaging apparatus, and a manufacturing method of the optical element, for capturing a multispectral image. An optical element according to an aspect of the present invention includes a plurality of optical filters including two or more optical filters that transmit light beams having at least partially different wavelength ranges, and a frame having an inclined surface portion with an optical axis center as an apex, in which the plurality of optical filters are installed on the inclined surface portion.

Optical element, optical device, imaging apparatus, and manufacturing method of optical element

A lens device includes an imaging optical system and an optical member. The optical member is disposed near a pupil of the imaging optical system in a state where an optical axis of the optical member coincides with an optical axis of the imaging optical system. The optical member includes a frame that includes a plurality of aperture regions, a plurality of optical filters that are disposed in at least one of the plurality of aperture regions and include two or more optical filters transmitting light having at least some wavelength ranges different from each other, and a plurality of polarizing filters that are disposed in at least one of the plurality of aperture regions and have different polarization directions. The lens barrel has a slit, and the optical member is insertable into and removable from the imaging optical system through the slit.

Lens device, imaging apparatus, imaging method, and imaging program for acquiring multispectral images

Provided are an imaging device which can simultaneously capture images in different wavelength ranges and can improve a focusing accuracy of each image, an imaging optical system, and an imaging method. An imaging device () includes an imaging optical system () which has a first pupil region for passing light in a first wavelength range and a second pupil region for passing light in a second wavelength range, in which an axial chromatic aberration of the imaging optical system () is reduced based on a relationship between an aberration other than the axial chromatic aberration of the imaging optical system () and positions of the first pupil region and the second pupil region in the imaging optical system (), an imaging element () which includes a first pixel receiving the light passing through the first pupil region in the imaging optical system () and a second pixel receiving the light passing through the second pupil region in the imaging optical system (), and a signal processing unit () which processes a signal output from the imaging element (), and generates each of a first image of the first wavelength range and a second image of the second wavelength range based on an output signal of the first pixel and an output signal of the second pixel.

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Saitama, Japan

Atsushi Kawanago