中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

136 records (took 0.016 seconds)

    Using photometric stereo for 3D environment modeling
    1.
    发明授权
    Using photometric stereo for 3D environment modeling 有权

    公开(公告)号：US12235363B2

    公开(公告)日：2025-02-25

    申请号：US17565344

    申请日：2021-12-29

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Otmar Hilliges ,  Malte Hanno Weiss ,  Shahram Izadi ,  David Kim ,  Carsten Curt Eckard Rother

    IPC: G01S17/894 ,  G06T7/246 ,  G06T7/586 ,  G06T15/00 ,  G06T17/00 ,  G06T19/00 ,  H04N13/20

    Abstract: Detecting material properties such reflectivity, true color and other properties of surfaces in a real world environment is described in various examples using a single hand-held device. For example, the detected material properties are calculated using a photometric stereo system which exploits known relationships between lighting conditions, surface normals, true color and image intensity. In examples, a user moves around in an environment capturing color images of surfaces in the scene from different orientations under known lighting conditions. In various examples, surfaces normals of patches of surfaces are calculated using the captured data to enable fine detail such as human hair, netting, textured surfaces to be modeled. In examples, the modeled data is used to render images depicting the scene with realism or to superimpose virtual graphics on the real world in a realistic manner.

    3D microscopy
    6.
    发明授权
    3D microscopy 有权

    公开(公告)号：US11454798B2

    公开(公告)日：2022-09-27

    申请号：US16492902

    申请日：2018-03-01

    Applicant: Carl Zeiss Microscopy GmbH

    Inventor： Ingo Kleppe ,  Matthias Wald

    IPC: G02B21/36 ,  G06T7/557 ,  H04N13/20

    Abstract: A microscopy method for three-dimensionally imaging an object, including imaging the object along a beam path into a first image on a first image plane. A first microlens array is arranged on the first image plane, and a second microlens array with the same pitch is arranged downstream of the first array. The two arrays laterally segment the first image and image same into a second image in which the segments are spaced apart and separated by gaps. On a pupil plane downstream of the microlens array, a provided phase mask generates a spot for each segment of the second image according to a pixel diffusion function. A detector detects the shape and structure of the spot, and a controller ascertains a lateral intensity distribution and depth specification from the shape and/or structure of the spot for each segment and generates a depth-resolved image of the object therefrom.

    SYSTEMS AND METHODS FOR GAZE TRACKING
    8.
    发明申请
    SYSTEMS AND METHODS FOR GAZE TRACKING 有权

    公开(公告)号：US20210026445A1

    公开(公告)日：2021-01-28

    申请号：US16554487

    申请日：2019-08-28

    Applicant: Cajal Corporation

    Inventor： Richard Stoner

    IPC: G06F3/01 ,  G06F16/732 ,  H04N13/20 ,  G06F16/435

    Abstract: The present disclosure provides systems and methods for gaze tracking. The methods for gaze tracking may comprise (a) collecting video data of a subject's face using a device, and (b) processing the video data to track the subject's gaze. The video data may comprise a plurality of images containing depth information. The methods for gaze tracking may track the gaze of the subject without requiring any prior or subsequent calibration of the subject's gaze to a predefined calibration point in space having a known location. The systems for gaze tracking may be configured to implement the methods for gaze tracking.

    Forensic three-dimensional measurement device
    9.
    发明授权
    Forensic three-dimensional measurement device 有权

    公开(公告)号：US10834377B2

    公开(公告)日：2020-11-10

    申请号：US15669099

    申请日：2017-08-04

    Applicant: FARO Technologies, Inc.

    Inventor： Matthias Wolke ,  Denis Wohlfeld ,  Bernd-Dietmar Becker

    IPC: H04N13/00 ,  H04N13/20 ,  H04N5/232 ,  G06T5/20 ,  H04N13/254 ,  H04N13/106 ,  H04N13/257 ,  H04N13/239 ,  H04N13/243 ,  H04N13/271

    Abstract: A three-dimensional (3D) forensic evidence system is provided. The system includes a noncontact measurement device operable to measure a distance from the device to a surface. A first camera is operably coupled to the noncontact measurement device, the first camera having a field of view. A light source is operably coupled to the first camera and operable to emit light onto the surface within the field of view. A processor operably is coupled to the first camera, the processor operable to execute computer instructions when executed on the processor for determining 3D coordinates of at least one point in the field of view based at least in part on the distance, and assigning at least one color value to the at least one point in response to determining an interaction of a predefined wavelength of light with a substance in the field of view.

    Remote depth sensing via relayed depth from diffusion
    10.
    发明授权
    Remote depth sensing via relayed depth from diffusion 有权

    公开(公告)号：US10666848B2

    公开(公告)日：2020-05-26

    申请号：US14704726

    申请日：2015-05-05

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Karlton D. Powell ,  Vivek Pradeep

    IPC: H04N5/232 ,  H04N5/357 ,  H04N13/20 ,  G01B11/14 ,  G01B11/22 ,  H04N13/204 ,  H04N5/225 ,  G01B11/24 ,  G01B11/25 ,  G06T7/571 ,  H04N13/271 ,  H04N13/236

    Abstract: Remote depth sensing techniques are described via relayed depth from diffusion. In one or more implementations, a remote depth sensing system is configured to sense depth as relayed from diffusion. The system includes an image capture system including an image sensor and an imaging lens configured to transmit light to the image sensor through an intermediate image plane that is disposed between the imaging lens and the image sensor, the intermediate plane having an optical diffuser disposed proximal thereto that is configured to diffuse the transmitted light. The system also includes a depth sensing module configured to receive one or more images from the image sensor and determine a distance to one or more objects in an object scene captured by the one or more images using a depth by diffusion technique that is based at least in part on an amount of blurring exhibited by respective said objects in the one or more images.

Patent Agency Ranking