Abstract: An imaging apparatus includes a first reflection optical system and a second reflection optical system having mutually different optical axes, each of the first and second reflection optical systems includes a plurality of reflecting surfaces, a first imaging portion configured to receive an imaging light reflected by the first reflection optical system, a second imaging portion configured to receive an imaging light reflected by the second reflection optical system, a first member, a second member, and a frame. A part of the plurality of reflecting surfaces of the first reflection optical system are reflecting surfaces provided on the frame. Among the plurality of reflecting surfaces of the first reflection optical system, a final-stage reflecting surface configured to reflect the imaging light toward the first imaging portion is a first reflecting surface formed on a surface of the first member.

Abstract: An optical product comprising a base member and an optical multilayer film formed directly on or indirectly above a film formation surface of the base member. The optical multilayer film reflects light on a short wavelength side and suppresses reflection of light on a longer wavelength side than the light on the short wavelength side, and has a first layer to an eighth layer counted from the base member side, the first layer is a first Al layer, the second layer is a first low-refractive-index layer, the third layer is a first high-refractive-index layer, the fourth layer is a second low-refractive-index layer, the fifth layer is a second Al layer, the sixth layer is a third low-refractive-index layer, the seventh layer is a second high-refractive-index layer, and the eighth layer is a fourth low-refractive-index layer.

Abstract: An optical product includes a base, and an optical film formed on a film-formation surface thereof. The optical film has an Al2O3 layer made of Al2O3 and disposed on the base side, and an SiO2 layer made of SiO2 and having a minutely uneven structure. The method for manufacturing the optical product includes forming, on the base, an Al-based manufacture intermediate film made of aluminium, an aluminium alloy, or an aluminium compound, and immersing the base having the Al-based manufacture intermediate film in an aqueous solution of silica. The silica in the aqueous solution has a concentration of not greater than 10 mg/l.

Abstract: A method for manufacturing an optical thin film having a first thin film portion and a second thin film portion, on a film formation surface of a base member directly or via an intermediate film. The method comprising forming the first thin film portion on a first film formation portion of the film formation surface; forming a washing-time removal film on the first thin film portion, the washing-time removal film having at least one of a fluff-like structure, a pyramid group-like structure and a pinholder-like structure, and being at least one of aluminum and an aluminum compound; forming the second thin film portion on a second film formation portion of the film formation surface, and on the first film formation portion on which the first thin film portion and the washing-time removal film have been formed; and removing the washing-time removal film and the second thin film portion by washing.

Abstract: An apparatus configured to acquire a plurality of spectral images of an object includes at least one processor configured to execute a plurality of tasks including a selection task configured to select a recording wavelength band according to an input by a user, and a control task configured to store in a memory information on a spectral image corresponding to the recording wavelength band. The apparatus acquires the plurality of spectral images by imaging the object through a plurality of lens units each configured to form an image of the object, and a plurality of filters each of which is disposed on a corresponding one of optical axes of the plurality of lens units.

Abstract: An apparatus configured to acquire a plurality of spectral images of an object includes at least one processor configured to execute a plurality of tasks including a selection task configured to select a recording wavelength band according to an input by a user, and a control task configured to store in a memory information on a spectral image corresponding to the recording wavelength band. The apparatus acquires the plurality of spectral images by imaging the object through a plurality of lens units each configured to form an image of the object, and a plurality of filters each of which is disposed on a corresponding one of optical axes of the plurality of lens units.

Abstract: An apparatus includes an imaging element for obtaining a plurality of parallax images by receiving a plurality of light flux that passes through different areas of a pupil of an optical system by different pixels, and a processor for performing image processing on an image that is obtained by using the imaging element. The processor includes a first obtaining unit that obtains first shape information based on a plurality of photometric stereo images that are shot by using the imaging element in light source conditions that include at least three different light source conditions, a second obtaining unit that obtains second shape information by using the plurality of parallax images, and a third obtaining unit that obtains third shape information by using the first shape information and the second shape information.

Abstract: An image processing method includes the steps of acquiring a first image, acquiring a second image that has a noise amount larger than that of the first image and has high frequency components of an object more than those of the first image, and inputting the first image and the second image into a neural network, and generating a third image having the high frequency components of the object more than those of the first image and having the noise amount smaller than that of the second image.

Abstract: An image processing apparatus processes a first image and a second image so as to detect a corresponding pixel in the second image which corresponds to a target pixel in the first image. The first image has a first parameter value, and the second image has a second parameter value different from the first parameter value. The first parameter value and the second parameter value are values of optical parameters of image capturing systems used to capture the first image and the second image. The image processing apparatus includes an area setter that sets a two-dimensional search area as a partial area in which the corresponding pixel is to be searched in the second image, based on a predetermined range in which each of the first and second parameter values can change, and a detector that detects the corresponding pixel by searching the two-dimensional search area.

Abstract: An imaging apparatus includes an image sensor configured to photoelectrically convert an object image formed by an imaging optical system in at least three states in which positions of light sources configured to emit light are different from each other, and to output at least three image data, and a luminance distribution acquirer configured to acquire information on a plurality of luminance distributions of the image data based on common information on a common light amount distribution regarding the at least three states.

Abstract: A control apparatus includes a focus information calculator configured to calculate focus information by using an image signal obtained via a first image capturer, a distance information calculator configured to calculate distance information on a distance to an object by using an image signal obtained via a second image capturer, a correction value calculator configured to calculate a correction value by using the focus information of the first image capturer, and a controller configured to provide a focus control to the first image capturer using the correction value and the distance information.

Abstract: A control apparatus includes a controller configured to switch a simultaneous light emission mode that causes all of the at least three light source units to emit lights and a sequential light emission mode that causes the at least three light source units to sequentially emit the lights in association with imaging. The controller causes the at least three light source units to sequentially emit the lights in synchronization with each of at least three imaging signals transmitted from the imaging apparatus in the sequential light emission mode. The controller is configured to switch between the simultaneous light emission mode and the sequential light emission mode based on information from a selector provided in at least one of the imaging apparatus and the accessory and configured to select the simultaneous light emission mode and the sequential light emission mode.

Abstract: A control apparatus includes a write unit configured to write additional information on an imaging state in acquiring an image captured with at least three light sources located at different positions by correlating the additional information with the image. The additional information is information configured to identify at least one of information on an incident angle of light from each light source toward the object on the image and light amount distribution information of the light emitted from each light source on the image.

Abstract: An imaging apparatus includes a first reflection optical system and a second reflection optical system having mutually different optical axes, each of the first and second reflection optical systems includes a plurality of reflecting surfaces, a first imaging portion configured to receive an imaging light reflected by the first reflection optical system, a second imaging portion configured to receive an imaging light reflected by the second reflection optical system, a first member, a second member, and a frame. A part of the plurality of reflecting surfaces of the first reflection optical system are reflecting surfaces provided on the frame. Among the plurality of reflecting surfaces of the first reflection optical system, a final-stage reflecting surface configured to reflect the imaging light toward the first imaging portion is a first reflecting surface formed on a surface of the first member.

Abstract: A processing apparatus includes an input image acquirer configured to acquire an input image obtained by capturing an object, a normal information acquirer configured to acquire normal information of the object, a first renderer configured to generate a first rendered image about the object based on a light source condition in capturing the input image and the normal information, and an area detector configured to detect a target area corresponding to a portion where an error of the normal information in the object is larger than a predetermined value based on the input image and the first rendered image.

Abstract: A control apparatus includes a write unit configured to write additional information on an imaging state in acquiring an image captured with at least three light sources located at different positions by correlating the additional information with the image. The additional information is information configured to identify at least one of information on an incident angle of light from each light source toward the object on the image and light amount distribution information of the light emitted from each light source on the image.

Abstract: An image processing apparatus (104) includes a first obtainer (104a) that obtains a plurality of input images (111) obtained by photographing an object a plurality of times while at least one of a light source position and a viewpoint is changed, and a second obtainer (104b) that obtains a plurality of diffuse images (115) based on the same pixel areas of object images in the plurality of input images (111).

Abstract: An image processing method includes the steps of acquiring a first image, acquiring a second image that has a noise amount larger than that of the first image and has high frequency components of an object more than those of the first image, and inputting the first image and the second image into a neural network, and generating a third image having the high frequency components of the object more than those of the first image and having the noise amount smaller than that of the second image.

Abstract: One or more image processing apparatuses, imaging apparatuses, image processing methods, image processing programs, and recording mediums are provided herein. At least one image processing apparatus includes a hue obtaining unit configured to perform a noise reduction process on an input image or a first hue of the input image so as to obtain a second hue having reduced noise, an extraction unit configured to extract a plurality of pixels from the input image based on the second hue having the reduced noise, and an estimation unit configured to estimate diffuse reflection components based on the plurality of extracted pixels.

Abstract: A control apparatus includes a controller configured to switch a simultaneous light emission mode that causes all of the at least three light source units to emit lights and a sequential light emission mode that causes the at least three light source units to sequentially emit the lights in association with imaging. The controller causes the at least three light source units to sequentially emit the lights in synchronization with each of at least three imaging signals transmitted from the imaging apparatus in the sequential light emission mode. The controller is configured to switch between the simultaneous light emission mode and the sequential light emission mode based on information from a selector provided in at least one of the imaging apparatus and the accessory and configured to select the simultaneous light emission mode and the sequential light emission mode.