Patents by Inventor Zhuoli Sun

Zhuoli Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230386018
    Abstract: 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.
    Type: Application
    Filed: April 21, 2023
    Publication date: November 30, 2023
    Applicant: Keyence Corporation
    Inventors: Zhuoli SUN, Yuma SHIMADA
  • Publication number: 20230388635
    Abstract: 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.
    Type: Application
    Filed: April 21, 2023
    Publication date: November 30, 2023
    Applicant: Keyence Corporation
    Inventors: Zhuoli SUN, Satoshi OBUSE
  • Publication number: 20230388636
    Abstract: 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.
    Type: Application
    Filed: April 21, 2023
    Publication date: November 30, 2023
    Applicant: Keyence Corporation
    Inventors: Zhuoli SUN, Satoshi OBUSE
  • Publication number: 20230388621
    Abstract: 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.
    Type: Application
    Filed: April 21, 2023
    Publication date: November 30, 2023
    Applicant: Keyence Corporation
    Inventor: Zhuoli SUN
  • Patent number: 10648921
    Abstract: 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.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 12, 2020
    Assignee: Keyence Corporation
    Inventor: Zhuoli Sun
  • Patent number: 10630910
    Abstract: 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 diode 31b is set to be equal to or less than a half cycle of a sine-wave of the pattern light. A plurality of light emitting diodes 31b are 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.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 21, 2020
    Assignee: Keyence Corporation
    Inventor: Zhuoli Sun
  • Publication number: 20190056331
    Abstract: 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.
    Type: Application
    Filed: October 22, 2018
    Publication date: February 21, 2019
    Applicant: Keyence Corporation
    Inventor: Zhuoli Sun
  • Patent number: 10168022
    Abstract: 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.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 1, 2019
    Assignee: Keyence Corporation
    Inventors: Zhuoli Sun, Taku Kawai
  • Patent number: 10139350
    Abstract: 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.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: November 27, 2018
    Assignee: Keyence Corporation
    Inventor: Zhuoli Sun
  • Publication number: 20180313520
    Abstract: 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.
    Type: Application
    Filed: March 20, 2018
    Publication date: November 1, 2018
    Applicant: Keyence Corporation
    Inventors: Zhuoli Sun, Taku Kawai
  • Publication number: 20170186152
    Abstract: 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.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicant: Keyence Corporation
    Inventor: Zhuoli Sun
  • Patent number: 9632036
    Abstract: 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.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: April 25, 2017
    Assignee: Keyence Corporation
    Inventor: Zhuoli Sun
  • Publication number: 20150355101
    Abstract: 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.
    Type: Application
    Filed: May 20, 2015
    Publication date: December 10, 2015
    Applicant: KEYENCE CORPORATION
    Inventor: Zhuoli Sun