Projection Of Structured Light Pattern Patents (Class 356/603)
  • Patent number: 10935371
    Abstract: A triangulation scanner system and method of operation is provided. The system includes a projector that alternately projects a pattern of light and no light during first and second time intervals. A camera includes a lens and a circuit with a photosensitive array. The camera captures an image of an object. The photosensitive array has a plurality of pixels including a first pixel. The first pixel including an optical detector and a first and second accumulator. The optical detector produces signals in response to a light levels reflected from a point on the object. The first accumulator sums the signals during the first time intervals to obtain a first summed signal. The second accumulator sums the signals during the second time intervals obtain a second summed signal. A processor determines 3D coordinates of the point based on the projected pattern of light and on the first and second summed signals.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: March 2, 2021
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Matthias Wolke, Rolf Heidemann, Gerrit Hillebrand, Daniel Döring
  • Patent number: 10883823
    Abstract: A method of determining dimensional information of a target surface includes generating a first point cloud corresponding to a first plurality of reconstructed surface points of the target surface generated by a first imaging system-illumination source pair of a phase profilometry system; generating a second point cloud corresponding to a second plurality of reconstructed surface points of the target surface generated by a second imaging system-illumination source pair of the phase profilometry system; generating an initial estimate of the target surface based on the first and second point clouds; and refining the initial surface estimate using positions of the first and second point clouds and geometry of the first and second imaging system-illumination source pairs to generate a final point cloud.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: January 5, 2021
    Assignee: CyberOptics Corporation
    Inventors: Paul R. Haugen, Evan J. Ribnick, Carl E. Haugan, Eric P. Rudd
  • Patent number: 10824082
    Abstract: Metrology targets, target design methods and menology measurement methods are provided, which estimate the effects of asymmetric aberrations, independently or in conjunction with metrology overlay estimations. Targets comprise one or more pairs of segmented periodic structures having a same coarse pitch, a same 1:1 line to space ratio and segmented into fine elements at a same fine pitch, wherein the segmented periodic structures differ from each other in that one thereof lacks at least one of its corresponding fine elements and/or in that one thereof comprises two groups of the fine elements which are separated from each other by a multiple of the fine pitch. The missing element(s) and/or central gap enable deriving the estimation of aberration effects from measurements of the corresponding segmented periodic structures. The fine pitches may be selected to correspond to the device fine pitches in the corresponding layer.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 3, 2020
    Assignee: KLA-Tencor Corporation
    Inventors: Yoel Feler, Vladimir Levinski
  • Patent number: 10792133
    Abstract: A 3D scanner according to an embodiment of the present invention includes a pattern generating device irradiating a light pattern to a subject and an imaging device receiving an omni-directional image of the subject to which the light pattern is irradiated.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 6, 2020
    Assignee: DDS COMPANY
    Inventor: Jung Bon Moon
  • Patent number: 10742909
    Abstract: A method and device for improving the accuracy of depth information derived from a structured-light image for a regular image are disclosed. In one example, an additional structured-light image is captured before a first structured-light image or after a regular image. The depth information for the regular image can be derived from the first structured-light image and corrected by incorporating depth information from the additional structured-light image. A model for depth information can be used to predict or interpolate depth information for the regular image. In another example, two regular sub-images may be captured with a structured-light image in between. If substantial frame differences or substantial global motion vector/block motion vectors are detected, the two regular sub-images will not be combined in order to avoid possible motion smear. Instead, one of the two sub-images will be selected and scaled as the output regular image.
    Type: Grant
    Filed: September 21, 2019
    Date of Patent: August 11, 2020
    Assignee: CAPSOVISION INC.
    Inventors: Kang-Huai Wang, Yi Xu, Gordon C. Wilson, Chenyu Wu
  • Patent number: 10704899
    Abstract: A shape measuring device includes a stereoscopic-shape-data generating section 212 configured to generate stereoscopic shape data indicating a shape of the measurement object with a pattern projection method, a measurement-setting automatically adjusting section 217 configured to automatically adjust measurement setting for the partial regions on the basis of at least one of stereoscopic shape data of the partial regions and light reception data acquired in the partial regions when the stereoscopic shape data is generated, and a stereoscopic-shape-data coupling section 219 configured to couple, according to the measurement setting for the partial regions adjusted by a measurement setting adjusting section, the stereoscopic shape data of the partial regions generated again by the stereoscopic-shape-data generating section 212 and generate coupled stereoscopic shape data corresponding to the coupled region.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: July 7, 2020
    Assignee: KEYENCE CORPORATION
    Inventor: Shinya Takahashi
  • Patent number: 10674650
    Abstract: A component mounting device includes a controller that controls an imaging unit to image a predetermined region during a period from a time point at which a head finishes mounting a component at a mounting position to a time point at which the head completes upward movement from the mounting position, and acquires information about a height of the mounting position based on an imaging result of the predetermined region imaged by the imaging unit. The controller further determines whether or not the component has been successfully mounted at the mounting position based on the acquired information about the height of the mounting position.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 2, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Kazushi Takama, Seiji Nakamura
  • Patent number: 10643341
    Abstract: Disclosed embodiments include methods and systems for utilizing a structured projection pattern to perform depth detection. In some instances, the structured projection pattern forms a dot pattern, which is projected by an infrared (IR) illuminator, wherein the dot pattern includes a replicated sub-pattern having a predefined height and width. The sub-pattern is replicated in at least one direction such that the dot pattern comprises a plurality of replicated sub-patterns that are adjacently positioned.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 5, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Michael Bleyer, Yuri Pekelny, Raymond Kirk Price
  • Patent number: 10624533
    Abstract: A method and apparatus for processing gastrointestinal (GI) images are disclosed. According to this method, a regular image is received, where the regular image is captured using an imaging apparatus by projecting non-structured light onto a body lumen when the imaging apparatus is in the body lumen. One or more structured-light images captured using the imaging apparatus by projecting the body lumen with structured light are received. A target distance for a target region in the regular image is derived based on said one or more structured-light images. A filter is determined based on the target distance and camera parameters associated with the imaging apparatus. A first processed target region is generated by applying the filter to the target region to improve sharpness of the target region. A first processed regular image comprising the first processed target region is provided.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: April 21, 2020
    Assignee: CAPSOVISION INC
    Inventors: Kang-Huai Wang, Gordon C. Wilson
  • Patent number: 10580134
    Abstract: A method of imaging a dental object using a dental camera comprising the steps of: recording a plurality of three-dimensional optical images of a dental object using a dental camera; determining whether an overlapping area, formed by at least a partial overlap of the plurality of three-dimensional optical images, satisfies one or more recording requirements; and generating an acoustic sound during the recording using a sound generator; wherein the sound serves as a feedback for the user and imparts to the user information (i) about the current status of a recording of the images and/or (ii) about recording requirements of the dental camera; wherein a speed of movement of the dental camera relative to the object is determined by (i) using a motion sensor on the dental camera or (ii) by analysis of the measured images; and wherein the acoustic sound is generated as a function of the determined speed of movement.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 3, 2020
    Assignee: DENTSPLY SIRONA INC.
    Inventor: Anders Adamson
  • Patent number: 10575920
    Abstract: The present disclosure relates to an augmented reality (AR) image projection system capable of simultaneously capturing a real image and projecting an AR image, and capable of applying same to a subject requiring precise work or in an environment having spatial restrictions. The present disclosure includes a real image capture device for capturing a real image illuminated by invisible rays without interference with visible rays, and an AR image projection device for projecting an AR image, wherein the real image capture device captures a real image and the AR image projection device projects an AR image through the same optical axis. Further, the present disclosure includes a real image capture device, an AR image projection device, as well as additional imaging devices such as a fluorescent camera configured integrally along the same optical axis, and configured to avoid wavelength interference between a light source and an excitation light and the like.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 3, 2020
    Assignee: NATIONAL CANCER CENTER
    Inventors: Seok Ki Kim, Seong Cheon Kim, Sun Up Park
  • Patent number: 10552966
    Abstract: An electronic device for quantifying parallax motion is described. The electronic device includes a detecting unit to detect at least three fiducial markers in an image with parallax, wherein the at least three fiducial markers are part of a straight line in an input image; an estimating unit to estimate a best fit line to a curved line formed by the at least three fiducial markers, wherein the curved line is a result of parallax applied to the input image; a calculating unit to calculate an error between the best fit line and the curved line formed by the at least three fiducial markers; and a comparing unit to compare the error to a threshold limit.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 4, 2020
    Assignee: Intel Corporation
    Inventors: Avigdor Eldar, Dror Cohen, Sagi Levi
  • Patent number: 10508909
    Abstract: Provided is a line displacement evaluation method of evaluating line displacement occurring in a press-formed article in press forming of forming a character line. This method includes acquiring a cross section profile of the press-formed article measured so as to traverse the character line formed in the press-formed article; calculating a 4th order differential coefficient of the acquired cross section profile; and evaluating the line displacement, on the basis of the calculated 4th order differential coefficient of the cross section profile.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: December 17, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Masahiro Saito, Tohru Yoshida
  • Patent number: 10484629
    Abstract: A method and device for improving the accuracy of depth information derived from a structured-light image for a regular image are disclosed. In one example, an additional structured-light image is captured before a first structured-light image or after a regular image. The depth information for the regular image can be derived from the first structured-light image and corrected by incorporating depth information from the additional structured-light image. A model for depth information can be used to predict or interpolate depth information for the regular image. In another example, two regular sub-images may be captured with a structured-light image in between. If substantial frame differences or substantial global motion vector/block motion vectors are detected, the two regular sub-images will not be combined in order to avoid possible motion smear. Instead, one of the two sub-images will be selected and scaled as the output regular image.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 19, 2019
    Assignee: CAPSO VISION INC
    Inventors: Kang-Huai Wang, Yi Xu, Gordon C. Wilson, Chenyu Wu
  • Patent number: 10447899
    Abstract: A system for motion control is presented. In one embodiment, a motion control 3D projection system includes a projector; and a projection surface coupled to a robotic arm, where the robotic arm moves the projection surface through a set of spatial coordinates, and a 3D projection from the projector is projected onto a set of coordinates of the projection surface and matches the 3D projection to the set of coordinates of the projection surface as the projection surface moves through the set of spatial coordinates. In additional embodiments, a master control system may integrate additional robotic arms and other devices to create a motion control scene with a master timeline.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 15, 2019
    Assignee: X Development LLC
    Inventor: Jeff Linnell
  • Patent number: 10437223
    Abstract: Some embodiments described herein relate to a measuring system for automated measurement of an object and detection of differences between features of the object and CAD data of the object. The measuring system may include a measuring device having a distance meter for measuring a position of at least one remote target point, a local computer terminal that is connected to or part of the measuring system, an assigned memory unit for storing the data base comprising the CAD data and an assigned set of measurement software program for controlling the measuring system. In some embodiments, the stored CAD data of the object comprise typical dimensions and tolerances of the features of the object and the assigned set of measurement software programs for controlling the measuring system comprises an optimization algorithm for the measurement of each feature.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: October 8, 2019
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Bo Pettersson, Knut Siercks
  • Patent number: 10410336
    Abstract: An inspection device includes: an irradiation unit irradiating an inspection target with light by causing a predetermined position within a display screen to emit light; a captured image acquisition unit acquiring a captured image obtained by imaging the inspection target; a calculation unit calculating coordinates in the display screen corresponding to coordinates in the captured image on the basis of light emission position coordinate information and light reception position coordinate information indicating coordinates of a light emission position and a light reception position; and an inspection pattern creation unit creating an inspection pattern which is displayed on the display screen so that first patterns and second patterns are alternately arranged in the captured image and which is used to inspect presence a defect on a surface of the inspection target, on the basis of a calculation result of the calculation unit.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: September 10, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Munehiro Takayama, Akira Kozakai, Masataka Toda, Yukio Ichikawa
  • Patent number: 10368038
    Abstract: A monitoring camera includes an image capturing unit configured to capture an image of a subject, the image capturing unit having an image capturing field angle adjustable by a zooming optical system, and a light source having a light emitting diode configured to emit an illuminating radiation. The camera further includes a lens unit configured to apply the illuminating radiation in a direction which is substantially identical to a direction in which the image capturing unit captures the image, and an irradiation moving unit configured to variably set an irradiation range of the illuminating radiation to irradiate an area which is substantially the same as the image capturing field angle of the image capturing unit.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: July 30, 2019
    Assignee: Sony Corporation
    Inventors: Georgero Konno, Makoto Usami, Norio Ishibashi
  • Patent number: 10337877
    Abstract: A communication system and method for the utilization of LED communication networks to facilitate user interaction. The controller can transmit a unique identification code to each of the LEDs. The client computing device can receive the unique identification code and send the received identification code to the controller. The controller can identify the location of the client computing device based on the received identification code.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 2, 2019
    Assignee: Amazon Technologies, Inc.
    Inventor: Neeresh Padmanabhan
  • Patent number: 10281264
    Abstract: A three-dimensional measurement apparatus including: a projection unit configured to project a pattern onto a measurement target object from one or more projection directions; and an image capturing unit configured to obtain one or more captured images by capturing an image of the measurement target object from one or more view points. The three-dimensional measurement apparatus obtains a position of the pattern projected onto the measurement target object based on the one or more captured images obtained by the image capturing unit, and calculates three-dimensional coordinates of a surface of the measurement target object based on the position of the pattern obtained from the one or more captured images and a position of the pattern estimated based on a parameter set that represents internal scattering of the measurement target object.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: May 7, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomoaki Higo, Toshihiro Kobayashi, Masayoshi Yamasaki
  • Patent number: 10158842
    Abstract: The present disclosure relates to devices, methods, and systems for cargo sensing. One cargo presence detection system includes one or more sensors positioned in an interior space of a container, and arranged to provide spatial data about at least a portion of the interior space of the container and a detection component that receives the spatial data from the one or more sensors and identifies if one or more cargo items are present in the interior space of the container based on analysis of the spatial data.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: December 18, 2018
    Assignee: Honeywell International Inc.
    Inventors: Scott McCloskey, Pedro Davalos, Ryan A. Lloyd
  • Patent number: 10148936
    Abstract: An imaging system and method for generating a three-dimensional color image include an opening for allowing light from an object to enter the imaging system. Each sensor element in an array of sensor elements receives a portion of the light and generates a signal indicative of an intensity of the received portion of the light. Light from an optical element impinges on a filter comprising a plurality of filter regions, each filter region passes a predetermined band of wavelengths of the light and is associated with and disposed in alignment with one of the sensor elements such that light passing through each filter region impinges on the sensor associated and in alignment with the filter element. At least one of the filter regions is constructed to pass a visible color band, and at least one other of the filter regions is constructed to pass an infrared band.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: December 4, 2018
    Assignee: OmniVision Technologies, Inc.
    Inventors: Hui Wei, Changmeng Liu
  • Patent number: 10139220
    Abstract: A three-dimensional measurement device includes: a first irradiator that radiates a first light pattern from a first position toward an object; a first grid controller that controls a first grid to change phases of the first light pattern; a second irradiator that radiates a second light pattern from a second position toward the object; a second grid controller that controls the second grid to change phases of the second light pattern; a camera that takes an image of reflected light from the object; and a processor that: performs one of a first imaging process of imaging processes performed by radiation of the first light pattern and a second imaging process of imaging processes performed by radiation of the second light pattern; and subsequently performs the other imaging process without waiting for completion of the transfer or changeover of the first or the second grid involved in the one imaging process.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 27, 2018
    Assignee: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Patent number: 10034648
    Abstract: A system for reconstructing a 3D volume has a surface acquisition system with a light source and an image sensor for characterizing the surface contour of a patient and an X-ray imaging system for acquiring X-ray projection data of the patient from a number of angular positions. A controller is programmed with instructions to synchronize the 3D surface contour characterization from the surface acquisition system with the acquired X-ray projection data. A processor executes a motion reduction method that uses the acquired X-ray projection data and the generated 3D surface contour characterization to reconstruct a 3D volume.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 31, 2018
    Assignee: Carestream Health, Inc.
    Inventors: Yuan Lin, William J. Sehnert
  • Patent number: 10015397
    Abstract: A system creates an electronic file corresponding to a printed artifact by launching a video capture module that causes a mobile electronic device to capture a video of a scene that includes the printed artifact. The system analyzes image frames in the video in real time as the video is captured to identify a suitable instance. In one example, the suitable instance is a frame or sequence of frames that contain an image of a page or side of the printed artifact and that do not exhibit a page-turn event. In response to identification of the suitable instance, the system will automatically cause a photo capture module of the device to capture a still image of the printed artifact. The still image has a resolution that is higher than that of the image frames in the video. The system will save the captured still images to a computer-readable file.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 3, 2018
    Assignee: Xerox Corporation
    Inventors: Phillip J. Emmett, Raja Bala, Michael R. Furst, Lina Fu
  • Patent number: 9995725
    Abstract: Disclosed herein is an apparatus including a structure containing a multiphase fluid and having a transparent window. A collimated light source emits light through the transparent window structure at a wavelength at which a component of a desired phase of the multiphase fluid is absorptive. A photodetector is positioned such that the emitted light passes through the multiphase fluid in the structure and out through the transparent window structure to impinge upon the photodetector. The photodetector has an actual dynamic range for light detection. Processing circuitry adjusts a power of the collimated light source in a series of steps dependent upon a relationship between an output level of the photodetector and a threshold to cause measurement of the emitted light over an effective dynamic range greater than the actual dynamic range. Properties of the multiphase fluid are determined as a function of the measured emitted light.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 12, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Arifin Arifin, Cheng-Gang Xie
  • Patent number: 9885563
    Abstract: Dynamic digital fringe projection (DDFP) techniques for measuring warpage. The DDFP technique generates a dynamic fringe pattern, in which a proper fringe intensity distribution is dynamically determined based on the surface reflectance of an unpainted sample in order to obtain better fringe image contrasts. The DDFP technique includes the automatic segmentation method to segment the chip package and PWB regions in an unpainted PWB assembly PWBA image. It also includes calibration methods to compensate the mismatches in coordinates and intensities between the projected and captured images.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: February 6, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Ifeanyi Charles Ume, Sungbum Kang
  • Patent number: 9870610
    Abstract: A radiation imaging system includes a radiation imaging device, a reconstruction unit and a detection unit. The reconstruction unit generates at least two of a differential phase image, an absorption image and a small-angle scattering image based on periodic pattern images of a subject obtained by the imaging device. The detection unit performs regression analysis on at least two images of (a) the differential phase image, a differential absorption image of the absorption image and a differential small-angle scattering image of the small-angle scattering image or (b) a phase image of the differential phase image, the absorption image and the small-angle scattering image; calculates a value of an indicator indicating a relationship between the at least two images; and detects image quality deterioration due to change in relative position of the imaging device and the subject based on the value.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 16, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Chiho Makifuchi
  • Patent number: 9807359
    Abstract: A system and method for advanced lens geometry fitting is provided for projecting images using a projector with a non-planar lens. An initial estimate of intrinsic parameters of the projector can be determined, for example from a list; an initial estimate of extrinsic parameters of the projector can be determined based on the initial estimate of intrinsic parameters. The intrinsic parameters and extrinsic parameters can be optimized together by starting with a simple lens model and iteratively adding nonlinear terms, an error function evaluated at each iteration, for example for each set of intrinsic parameters in the list and the corresponding extrinsic parameters. As the values of the error function converges the optimized intrinsic parameters and the optimized extrinsic parameters can be used to generate images that are projected by the projector.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 31, 2017
    Assignee: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventors: Kevin Moule, Eliezer Azi Ben-Lavi, Derek Scott, Daniel Thomson Urquhart
  • Patent number: 9791267
    Abstract: Embodiments of a shape measurement system and related methods are disclosed. In some embodiments, the system places a two-dimensional initial pattern, which can be implemented as a standalone molding or can be attached to a light source or printed on an outfit, onto a surface of a three-dimensional object. The system captures a transformed version of the initial pattern in two dimensions that is distorted due to the varying depth of the surface. The system then analyzes the transformed pattern and derives three-dimensional information regarding the target object. The analysis, which can incorporate a calibration process, can rely on the projection nature of the light source, the isomorphism/non-isomorphism of the initial pattern, and other factors.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: October 17, 2017
    Inventors: Robert Bismuth, William D. Orner, Jacob Rapoport, Amit Rohatgi
  • Patent number: 9762897
    Abstract: A concentric circle adjusting apparatus for a multiple image capturing device is disclosed, where a first and second correction angles for correcting a first and second image capturing devices are respectively calculated by a control device according to a link length of a standard link, a first angle, a second angle, a first distance, and a second distance, respectively, so that a first and second platforms are controlled according to the first and second control commands to rotate the first and second image capturing device by the first and second correction angles, respectively, whereby the efficacy of an increased visible range and a rapid calibration may be achieved.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: September 12, 2017
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Chi-Hung Huang, Yung-Hsiang Chen, Wei-Chung Wang
  • Patent number: 9752994
    Abstract: A measurement target is captured using two types of illumination patterns set such that only color features of specular objects change, the two images that are obtained are compared, and objects are identified as being specular objects or diffuse objects depending on whether the color features change markedly. At this time, the emission intensity distribution of each illumination pattern is devised such that specular lobe components that are included in reflected light are canceled out.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: September 5, 2017
    Assignee: OMRON Corporation
    Inventors: Takeshi Kojima, Yasumoto Mori, Yasuhiro Ohnishi
  • Patent number: 9714829
    Abstract: An information processing apparatus includes an irradiation unit to irradiate a measurement target with a measurement pattern for distance measurement. An imaging unit obtains a captured image including the irradiated measurement target. A first detection unit detects first and second regions from the captured image. The first region includes a first portion of the measurement target that reflects a greater amount of light toward the imaging unit. The second region includes a second portion of the measurement target that reflects a lesser amount of light toward the imaging unit. A second detection unit detects, from the measurement pattern, a first region with which the first portion is irradiated and a second region with which the second portion is irradiated. A generation unit generates a measurement pattern that has different amounts of irradiation light depending on regions. A distance to the measurement target is derived using an obtained captured image.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 25, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akira Ohno, Takahisa Yamamoto, Masakazu Matsugu
  • Patent number: 9569859
    Abstract: An information handling system includes a three dimensional camera and a processor. The three dimensional camera is configured to capture a three dimensional image. The processor is configured to provide the three dimensional image to be displayed on a display screen of the information handling system, to detect a selection of a pixel within the three dimensional image, and to redefine the selected pixel to be a second pixel. The second pixel has a large disparity within the three dimensional image or its two dimensional counterpart.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: February 14, 2017
    Assignee: Dell Products, LP
    Inventors: Jeyprakash Michaelraj, Maxwell S. Andrews
  • Patent number: 9557158
    Abstract: A system and method for determining the position of objects in a radiation room for radiation therapy comprises several room lasers arranged in the radiation room, each of which is designed for patient positioning to project at least one laser line onto the surface of a patient located on a patient table in the radiation room. At least one camera detects at least one laser line projected onto the surface of the patient by at least one of the room lasers, and an evaluation and control apparatus determines the coordinate points along the laser line projected onto the surface of patient during a radiation procedure based on measurement values detected by the camera through a real-time triangulation process and compares them with target coordinate points. The coordinate points determined during the radiation procedure may be saved for documentation of the radiation procedure.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: January 31, 2017
    Inventors: Karsten Hofmann, Johann Kindlein
  • Patent number: 9470515
    Abstract: An arrangement evaluation apparatus of a range sensor comprises an article arrangement unit which arranges an article model, a sensor arrangement unit which arranges a sensor model, a first plane group generation unit which generates a plurality of first planes including division lines obtained by dividing a virtual plane, a second plane group generation unit which generates a plurality of second planes by boundary surfaces of stripe pattern light projected from the projector model, an intersection line calculation unit which calculates intersection lines between the first planes and the second planes, and an intersection number calculation unit which counts the number of intersection points between the intersection lines and the surface of the article model.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 18, 2016
    Assignee: Fanuc Corporation
    Inventor: Tatsuya Oumi
  • Patent number: 9404741
    Abstract: A device and a method for determining three dimensional surface coordinates of an object by means of optical color triangulation are proposed, wherein all lines of a color fringe pattern in each case have a width (BR) set in such a way that, in a recorded image of the line, all contrast maxima (CMax), of all spectral components of a line are equal to a minimum contrast value (CMin) is provided. Proceeding from an invariable smallest width of a pattern line with a spectral component of highest contrast, further lines can be correspondingly widened. The invention is particularly advantageously suitable for a 3D measurement for biological tissue.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: August 2, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Anton Schick
  • Patent number: 9398396
    Abstract: Information about a context of a mobile device is inferred using measurements from light detectors of the mobile device. The light detectors may be located on multiple different sides of the mobile device. In some embodiments, measurements from one or more cameras may be used to infer context.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: July 19, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Leonard Henry Grokop, Anthony Sarah, Vidya Narayanan
  • Patent number: 9335160
    Abstract: According to one embodiment, a profile measuring apparatus comprises a profile measuring unit, a position acquiring unit, a profile calculating unit, a deflection detecting unit, and a controlling unit. The profile measuring unit has a projecting unit to project a pattern onto a measured object, and an imaging unit to image the pattern. The position acquiring unit acquires a position of the profile measuring unit. The profile calculating unit calculates a profile of the measured object, based on image information from the imaging unit and position information from the position acquiring unit. The deflection detecting unit detects deflection of the projecting unit. The controlling unit executes active correction for the profile measuring unit and/or passive correction for the profile calculating unit, based on the deflection of the projecting unit detected by the deflection detecting unit.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 10, 2016
    Assignee: NIKON CORPORATION
    Inventors: Yuka Ito, Haruhiko Fujisawa
  • Patent number: 9269255
    Abstract: Systems and methods for warning of proximity in a worksite are disclosed. A second transceiver is detected at a first transceiver, wherein the first transceiver is a mobile wearable device, and wherein the first transceiver and the second transceiver are located at a worksite. An ad-hoc network is established, at the first transceiver, between the first transceiver and the second transceiver. A distance is calculated, at the first transceiver, in three dimensions between the first transceiver and the second transceiver based on the detecting the second transceiver. A first safety envelope is defined, at the first transceiver, about the first transceiver and a second safety envelope about the second transceiver. An alarm is issued, at the first transceiver, when the first safety envelope comes in contact with the second safety envelope.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: February 23, 2016
    Assignee: Trimble Navigation Limited
    Inventors: Eric Beaulieu, Gregory C. Best, Kurtis L. Maynard, John F. Cameron
  • Patent number: 9254682
    Abstract: An imaging module including a plurality of imaging systems for capturing images of a receiver medium. An illumination system illuminates the receiver medium with an illumination pattern. First and second imaging systems are positioned to capture images of the receiver medium, each including at least a portion of the illumination pattern. The first and second images are analyzed to determine a relative position of the illumination pattern in the first and second images. Imaging system alignment parameters for use in aligning images captured with the first and second imaging systems are determined responsive to the determined relative position.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: February 9, 2016
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Ronald J. Duke, James Alan Katerberg
  • Patent number: 9243899
    Abstract: A method of measuring a height of 3-dimensional shape measurement apparatus includes irradiating a first grid pattern light from a plurality of first lighting devices and a second grid pattern light from a plurality of second lighting devices which are alternatively arranged to the first lighting devices toward a target object wherein the first grid pattern light has a first equivalent wavelength and the second grid pattern light has a second equivalent wavelength that is different from the first equivalent wavelength, and obtaining a first pattern image corresponding to the first grid pattern light and a second pattern image corresponding to the second grid pattern light, generating combined pattern images by combining the first and second pattern images obtained from the first and second lighting devices adjacent to each other among the plurality of first and second lighting devices, calculating heights of the target object according to a combined equivalent wavelength of the combined pattern images, and de
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: January 26, 2016
    Assignee: KOH YOUNG TECHNOLOGY INC.
    Inventors: Joong Ki Jeong, Deok-Hwa Hong
  • Patent number: 9152844
    Abstract: The present invention provides a technology capable of measuring three-dimensional shapes by applying a stereo method even in the case that an object has a specular surface. A shape measuring apparatus 1 is equipped with a pattern position specification section 20 (before-movement pattern position specification section, after-movement pattern position specification section), an image capturing position calculation section 30 (before-movement image capturing position calculation section, after-movement image capturing calculation section), a pixel area specification section 40 (second pixel area specification section), an inclination angle calculation section 50 (before-movement inclination angle calculation section, after-movement inclination angle calculation section), a height-direction coordinate determination section 60, and an output section 80.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 6, 2015
    Assignee: ASAHI GLASS COMPANY, LIMTED
    Inventor: Kimiaki Ohto
  • Patent number: 9091536
    Abstract: The surface shape of a three-dimensional object is acquired with an optical sensor. The sensor, which has a projection device and a camera, is configured to generate three-dimensional data from a single exposure, and the sensor is moved relative to the three-dimensional object, or vice versa. A pattern is projected onto the three-dimensional object and a sequence of overlapping images of the projected pattern is recorded with the camera. A sequence of 3D data sets is determined from the recorded images and a registration is effected between subsequently obtained 3D data sets. This enables the sensor to be moved freely about the object, or vice versa, without tracking their relative position, and to determine a surface shape of the three-dimensional object on the fly.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: July 28, 2015
    Assignee: Dentsply International Inc.
    Inventor: Gerd Häusler
  • Patent number: 9086384
    Abstract: A shape measuring apparatus includes: an image pick-up section that captures an image of two reflection spot groups of a pattern reflected in a first surface M1 and a second surface of a transparent flat plate and generates an image containing two reflection images separated in a direction perpendicular to a direction of extending; a first surface reflection spot group estimating section that estimates from the image a first surface reflection spot group of the pattern generated by the first surface of the transparent flat plate; an inclination angle calculating section that calculates an inclination angle of the first surface of the transparent flat plate at an estimated position of the first surface reflection spot group; and a surface shape determining section that determines a shape of the first surface of the transparent flat plate based on the calculated inclination angle.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: July 21, 2015
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventor: Kimiaki Ohto
  • Patent number: 9062962
    Abstract: A system for and methods of performing lateral measurements of a work fixed to an XY translation stage of a CNC machine comprises coupling a range-detecting laser scanner to a tool mount of the CNC machine that is translatable along the X, Y, and Z axes. The work is surrounded by reflectors that are coupled to the XY translation stage, preferably parallel to the X and Y axes. The laser scanner is initially positioned at a predetermined coordinate, and its laser output is directed toward one of the reflectors. The distance from the laser scanner to the work is measured and is correlated with the laser scanner position to determine a coordinate of the work. The scanner is then incremented along one of the X and Y axes and another coordinate of the work is determined. The periphery of the work is similarly scanned, and the lateral measurements are determined therefrom.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: June 23, 2015
    Assignee: Flextronics AP, LLC
    Inventors: Gerhard Zebe, Zhuo Li
  • Patent number: 9036158
    Abstract: A pattern projector, comprising a light source, configured to emit a beam of light. A transparent substrate, which has a pair of mutually-opposed planar surfaces is configured to receive and propagate the beam within the substrate by total internal reflection between the planar surfaces. The transparent substrate comprises a diffractive structure that is formed on one of the planar surfaces and is configured to direct at least a part of the beam to propagate out of the substrate in a direction that is angled away from the surface and to create a pattern comprising multiple interleaved light and dark areas.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: May 19, 2015
    Assignee: Apple Inc.
    Inventor: Benny Pesach
  • Patent number: 9012875
    Abstract: A method and an inspection system that exhibiting speckle reduction characteristics includes a light source arranged to generate input light pulses, and diffuser-free speckle reduction optics that include a beam splitter, for splitting an input light pulse from the light source into multiple light pulses that are oriented at angles in relation to each other when exiting the beam splitter, and at least one optical element for directing the multiple light pulses to impinge on an inspected object at different angles.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 21, 2015
    Assignee: Applied Materials Israel, Ltd.
    Inventors: Amir Shoham, Haim Feldman, Doron Shoham
  • Patent number: 9013711
    Abstract: A structured light sensor system for measuring contour of a surface includes a control module that coordinates control of both a projection system and an imaging system to operate the structured light sensor system in three different modes. The imaging system is configured to selectively capture an image of light reflected off of the surface. In point mode, the imaging system is on for a first period during which the projection system projects a point of light onto the surface. In line mode, the imaging system is on for a second period during which the projection system projects onto the surface a first plurality of points of light forming a line of light. In area mode, the imaging system is on for a third period during which the projection system projects onto the surface a second plurality of points of light forming a plurality of lines of light.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 21, 2015
    Assignee: Perceptron, Inc.
    Inventors: Shyam P. Keshavmurthy, Chengchih Lin, Alfred A. Pease, Richard A. Krakowski
  • Publication number: 20150103358
    Abstract: A method for the non-contact measurement of a scene's 3D geometry is based on the concurrent projection of multiple and overlapping light patterns of different wavelengths and/or polarity onto its surfaces. Each location in the overlapping light patterns is encoded (code-word) by the combined arrangements of code elements (code-letters) from one or more of the overlapping patterns. The coded light reflected from the scene is imaged separately for each wavelength and/or polarity by an acquisition unit and code-letters are combined at each pattern location to yield a distinct code-word by a computing unit. Code-words are then identified in the image, stereo-matched, and triangulated, to calculate the range to the projected locations on the scene's surface.
    Type: Application
    Filed: March 6, 2013
    Publication date: April 16, 2015
    Inventor: Ittai Flascher