Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Hirokazu Ichikawa

Fumio Nakaya

Yoshitaka Kuwada

Takashi Hiramatsu

Yoshiya Imoto

Kiyofumi Aikawa

Miho Uno

Kaito Tasaki

Yoshiro Yamaguchi

Shin Takeuchi

Eigo Nakagawa

Jungo Harigai

Eisuke Osakabe

Hiroko Onuki

Yasuhiro Ogasawara

Satoshi Noda

Ryosuke Higashikata

Michio Kikuchi

Nobutoshi Hamasaki

Jiro Matsuda

Akihiko Naya

Koichi Oka

Kazushige Ooi

Hidekazu Imai

Yoichi Miyake

Norimichi Tsumura

Hidenobu Takahira

A surface inspection apparatus includes an imaging device configured to image a surface of an object to be inspected, and a processor configured to: calculate a numerical value representing a quality of the surface by processing an image captured by the imaging device, and receive a change in a range used to calculate the numerical value indicated by an index in the image.

Surface inspection apparatus, non-transitory computer readable medium storing program, and surface inspection method

A surface inspection apparatus includes an imaging device configured to image a surface of an object to be inspected, and a processor configured to: calculate a numerical value representing a quality of the surface by processing an image captured by the imaging device, and notify a user of information indicating a relationship between a first orientation of a pattern on the surface detected from the image and a second orientation that gives a direction of imaging in which a sensitivity of detection by the imaging device is high.

The disclosure provides a surface inspection apparatus for inspecting a surface of an object, a non-transitory computer readable medium thereof, and a surface inspection method thereof. According to an aspect of the disclosure, the surface inspection apparatus includes an imaging device configured to image a surface of an object to be inspected, and a processor configured to calculate a numerical value representing a quality of the surface by processing an image captured by the imaging device, and display, on a display device, the image including an index for specifying a position of a portion that has contributed to the calculation of the numerical value and the numerical value.

A measurement apparatus includes a light irradiator that irradiates a measurement target with light and a processor that controls the light irradiator, in which the processor is configured to irradiate a specific place of the measurement target with the light from plural places having different positions in one direction, and irradiate the specific place of the measurement target with the light from the plural places having different positions in a direction intersecting the one direction.

Measurement apparatus, information processing apparatus, and non-transitory computer readable medium storing program comprising a processor that controls the light irradiator that includes a first light source row and a second light source row having different positions and covering a majority of a reading unit, a third light source and a fourth light source having different positions in the intersecting direction

A display apparatus includes a diffuse reflection image acquiring unit, a specular reflection image acquiring unit, a difference image acquiring unit, a reflectance distribution function calculating unit, and a display. The diffuse reflection image acquiring unit acquires a diffuse reflection image of an object surface. The specular reflection image acquiring unit acquires a specular reflection image of the object surface. The difference image acquiring unit acquires a difference image between the diffuse reflection image and the specular reflection image. The reflectance distribution function calculating unit calculates a reflectance distribution function of the object surface by using the diffuse reflection image and the difference image. The display displays a reflection color of the object surface in accordance with a change of orientation of the object surface by using the reflectance distribution function.

Display apparatus, scanner, and non-transitory computer readable medium

An image reading apparatus includes: a light source that irradiates light; a switching unit that switches a direction of the light irradiated by the light source to one of a plurality of predetermined directions; a light guiding unit that guides the light whose direction is switched by the switching unit and that travels in one of the plurality of directions to a position predetermined for each of the directions; and a light sensor that, in a case where an object is in the predetermined position, measures light reflect by the object out of the light guided to the position by the light guiding unit.

Image reading apparatus

A reading device includes a first illuminating section that illuminates a reading area with first illumination light of a first direction; a second illuminating section that illuminates the reading area with second illumination light of a second direction; a light-receiving section that receives reflection light of the first illumination light and reflection light of the second illumination light reflected from the reading area, the first illumination light being applied from the first illuminating section and the second illumination light being applied from the second illuminating section; and reflecting members that are disposed side by side in the reading area in a widthwise direction thereof, and that have first and second reflecting surfaces.

Reading device

A light guide includes: a body which is a light-transmitting member and has light incidence surfaces as two end surfaces in a longitudinal direction and a light output surface which is one of side surfaces extending in the longitudinal direction; and light absorbing members which are provided on the light output surface or at least one, adjacent to the light output surface, of the side surfaces of the body and have a function of absorbing light that shines on the body from outside the body.

Light guide and image reading apparatus

There is provided an image processing apparatus includes a spectral reflectance calculation unit that calculates spectral reflectances respectively in plural wavelength ranges, based on intensity of reflected light from an object to be imaged and irradiation intensity of light that the object to be imaged is irradiated with; a determination unit that obtains derivatives of a function represented on the basis of the spectral reflectances calculated by the spectral reflectance calculation unit, and determines a number of eigenvectors, depending on whether the derivatives are positive or negative; a coefficient calculation unit that calculates coefficients where the spectral reflectances are expressed by linear combination of the number of eigenvectors and the coefficients respectively related to the eigenvectors, the number of eigenvectors being determined by the determination unit; and an output unit that outputs the coefficients calculated by the coefficient calculation unit.

Image processing apparatus, image reading apparatus, image forming apparatus with units to calculate spectral reflectance and relating coefficient and methods therefor

A reading device comprises: an irradiating unit that irradiates light onto a medium; an image forming unit that forms an image from irradiated light reflected from the medium; and an adjusting unit that causes an optical axis of irradiated light to be adjusted, under influence of weight of the irradiating unit, with respect to an optical axis of reflected light that occurs when the image forming unit forms an image of the reflected light.

Image reading device

A device includes: a first lighting unit that illuminates an object at a first incident angle; a second lighting unit that illuminates an object at a second incident angle, the second incident angle being larger than the first incident angle; an image-input unit that receives light and generates image signals in accordance with the received light; and a guiding unit that guides light diffusely reflected from the object illuminated by either the first lighting unit or the second lighting unit to the image-input unit.

Image-input device

An image processing apparatus comprises: a first calculation section that calculates a plurality of spectral reflectances at a plurality of wavelengths based on intensities of light irradiating an object and reflected from the object, the light having a certain spectral energy distribution; a second calculation section that calculates color descriptor values of the object based on the spectral reflectances calculated by the first calculation section; a third calculation section that calculates a set of factors when the color descriptor values are expressed using a linear combination of a predetermined plurality of eigenvectors, factors associated with the respective eigenvectors, and either spectral energy of a reference light or theoretical spectral energy of a virtual light; and an output section that outputs the factors calculated by the third calculation section.

Image processing apparatus, image reading apparatus, image forming apparatus, and methods therefor

An image reader includes an illumination unit that irradiates an object to be read with light, a first optical system that allows a first reflection light from the object to be read advance therein, a second optical system that allows a second reflection light from the object to be read to advance therein, a switching unit that switches between the first optical system and the second optical system to be used, an imaging unit that forms an image of the first reflection light that advances in the first optical system and an image of the second reflection light that advances in the second optical system by switching between the first optical system and the second optical system by the switching unit, and a light receiving unit that receives the first reflection light and the second reflection light which are formed into images and generates respective image signals.

Image reader

The imaging apparatus includes a light application unit that applies light to an object to be imaged, a first converging unit that converges diffuse reflection rays from the object to be imaged, a second converging unit that converges specular reflection rays from the object to be imaged, an image pickup unit that receives the rays converged by the first converging unit and by the second converging unit, and generates image signals corresponding to each rays, an image data generating unit that generates image data by combining first image signals corresponding to the rays converged by the first converging unit with second image signals corresponding to the rays converged by the second converging unit, and an image data output unit that outputs the image data generated by the image data generating unit.

Imaging apparatus

An image processing device includes: a spectral reflectance calculation unit that calculates a spectral reflectance on the basis of intensities of reflection light and irradiation intensities; a color value calculation unit that obtains color values based on the spectral reflectance; a coefficient calculation unit that calculates coefficients respectively for a plurality of predetermined eigenvectors where the color values are expressed by a linear combination between the plurality of predetermined eigenvectors, the coefficients, and spectral energies of at least two types of irradiation light; and an output unit that generates and outputs information corresponding to estimation values within a wavelength range defined by excluding at least one of a low and a high wavelength ranges from the wavelength range including the wavelengths of visible light, among estimation values of the spectral reflectances expressed by linear combination between the respective coefficients calculated by the coefficient calculation unit and the eigenvectors.

Growing community of inventors

Kanagawa, Japan

Hirokazu Ichikawa