Keyence Corporation

Zhuoli Sun

Satoshi Obuse

Taku Kawai

Yuma Shimada

Installation of an industrial camera is simplified. An industrial camera includes an imaging unit that captures an inspection object to generate an inspection target image, a distance measurement unit that measures an installation distance that is a distance to the inspection object, a storage unit that stores a camera parameter of the imaging unit, an interface unit that is able to receive an input of a size of a field of view or a pixel resolution as a required specification from a user, and a calculation unit that automatically calculates an optical condition necessary for realizing the required specification based on the installation distance measured by the distance measurement unit, the camera parameter stored in the storage unit, and the input required specification.

Industrial camera

An industrial camera includes an imaging unit generating a captured image with a number of pixels larger than a number of pixels of the inspection target image, an image generation unit downscaling a first captured image corresponding to an output region which is a region of a field of view range (FOV) of the imaging unit in whole or part at a first scaling magnification to generate an inspection target image with a first number of pixels smaller than a number of pixels of the first captured image, an interface unit receiving a first zoom instruction to change the output region to a relatively small region, and a calculation unit calculating a second scaling magnification. The image generation unit generates an inspection target image with the first number of pixels by downscaling the second captured image at the second scaling magnification.

An image processing device includes an imaging unit generating an inspection target image, a storage unit storing a reference image obtained by capturing an inspection object in advance, and a calculation unit specifying a positional relationship between an inspection object included in the inspection target image generated during operation and the inspection object included in the reference image, and calculates a generation condition of the inspection target image during operation such that the inspection object included in the inspection target image generated during operation and the inspection object included in the reference image are at substantially the same position. The generation condition includes positional information of an output region in which the inspection object is able to be output at substantially the same position as the reference image. The imaging unit generates an inspection target image corresponding to the output region of the positional information during operation.

Image processing device

An industrial camera includes an electric zoom optical system, an imaging unit generating a captured image with a number of pixels larger than a number of pixels of an inspection target image, an image generation unit executing downscaling a captured image corresponding to an output region of the imaging unit, an interface unit receiving designation of a zoom magnification, and a calculation unit calculating an optical magnification of optical zooming and a magnification of the downscaling based on the zoom magnification. When the zoom magnification is smaller than or equal to a predetermined magnification, an inspection target image is generated by downscaling a captured image at a scaling magnification calculated based on the zoom magnification. When the zoom magnification is larger than the predetermined magnification, the zoom optical system is driven at the optical magnification calculated based on the zoom magnification to generate an inspection target image.

An image inspection apparatus includes: an imaging section for capturing an image of a workpiece from a certain direction; an illumination section for illuminating the workpiece from different directions at least three times; an illumination controlling section for sequentially turning on the illumination sections one by one; an imaging generating section for driving the imaging section to generate a plurality of images; a normal vector calculating section for calculating a normal vector with respect to the surface of the workpiece at each of pixels by use of a pixel value of each of pixels having a corresponding relation among the plurality of images; and a contour image generating section for performing differential processing in an X-direction and a Y-direction on the calculated normal vector at each of the pixels, to generate a contour image that shows a contour of inclination of the surface of the workpiece.

Image inspection apparatus, image inspection method, image inspection program, computer-readable recording medium and recording device

To make it possible to generate sinusoidal pattern light as intended and to prevent the occurrence of high-frequency waviness in a height image even if a dimension of a light emitting surface of a light emitting diode is equal to or less than a dimension of a half cycle of a sine-wave. The dimension of the light emitting surface of the light emitting diodeis set to be equal to or less than a half cycle of a sine-wave of the pattern light. A plurality of light emitting diodesare arranged in a direction in which illuminance of the pattern light does not change, and are arranged to be deviated in a direction in which the illuminance of the pattern light changes.

Image processing apparatus

There is provided an attachment for an illumination device which can change a ring-shaped illumination device to a dome-shaped illumination device. An attachment for dome illumination includes: a dome member made of a material that transmits and diffuses light emitted from a light emitting opening section of the ring-shaped illumination device inwardly; a plate member connected to the dome member, and connected to a main case so as not to form a gap when the attachment for dome illumination is fitted to the ring-shaped illumination device; and a dome cover which holds the dome member and the plate member so as to shield the space formed by the dome member, the plate member, and the light emitting opening section from light when the attachment for dome illumination is fitted to the ring-shaped illumination device.

Growing community of inventors

Osaka, Japan

Zhuoli Sun