中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.036 seconds)

    DEVICES AND METHODS FOR OBTAINING THREE-DIMENSIONAL SHAPE INFORMATION USING POLARIZATION AND TIME-OF-FLIGHT DETECTION PIXEL CELLS
    2.
    发明申请
    DEVICES AND METHODS FOR OBTAINING THREE-DIMENSIONAL SHAPE INFORMATION USING POLARIZATION AND TIME-OF-FLIGHT DETECTION PIXEL CELLS 有权

    公开(公告)号：US20210352234A1

    公开(公告)日：2021-11-11

    申请号：US16870687

    申请日：2020-05-08

    Applicant: OMNIVISION TECHNOLOGIES, INC.

    Inventor： Badrinath Padmanabhan ,  Boyd Fowler ,  Alireza Bonakdar ,  Richard Mann

    IPC: H04N5/369 ,  H04N5/378 ,  H04N5/3745 ,  H01L27/146

    Abstract: In some embodiments, an imaging system is provided. The imaging system comprises an image sensor, a light source, control circuitry, and function logic. The image sensor comprises a pixel array that includes a plurality of polarization pixel cells and a plurality of time-of-flight pixel cells. The light source is configured to emit light pulses to an object. The control circuitry is coupled to the light source and the pixel array, and is configured to synchronize a timing of the emission of the light pulses with sensing of photons reflected from the object by the plurality of time-of-flight pixel cells to generate depth information. The function logic is configured to determine a set of ambiguous surface normals using signals generated by the plurality of polarization pixel cells, and to disambiguate the set of ambiguous surface normals using the depth information to generate a three-dimensional shape image.

    High-dynamic range image sensor and image-capture method
    7.
    发明授权
    High-dynamic range image sensor and image-capture method 有权

    公开(公告)号：US11102422B2

    公开(公告)日：2021-08-24

    申请号：US16431887

    申请日：2019-06-05

    Applicant: OmniVision Technologies, Inc.

    Inventor： Chengming Liu ,  Tiejun Dai ,  Richard Mann

    IPC: H04N5/235 ,  H04N5/3745 ,  H04N5/355

    Abstract: A method for capturing a high-dynamic-range image includes: (i) storing a plurality of pixel values representing a first image captured by an image sensor that includes a pixel array, each pixel value having been generated by a respective pixel of a pixel subarray of the pixel array, each pixel being set to one of N1 first exposure values, N1≥1; (ii) determining an exposure-count N2 based on the plurality of pixel values; (iii) setting each pixel to one of a second plurality of exposure values, N2 in number, such that, for each of the second plurality of exposure values, at least one pixel is set to that exposure value, one of the second plurality of exposure values differing from each of the N1 first exposure values by more than a threshold value; and after setting (iv), capturing a second image with the image sensor.

    High-dynamic range image sensor and image-capture method
    8.
    发明授权
    High-dynamic range image sensor and image-capture method 有权

    公开(公告)号：US11064134B2

    公开(公告)日：2021-07-13

    申请号：US16558499

    申请日：2019-09-03

    Applicant: OmniVision Technologies, Inc.

    Inventor： Chengming Liu ,  Tiejun Dai ,  Richard Mann

    IPC: H04N5/235 ,  H04N9/04

    Abstract: An image sensor includes a pixel array, and a first, second, and an intermediate memory-element. The memory-elements store, respectively, a first, second, and an intermediate exposure value. The pixel array includes pixel-subarrays each including a rescue pixel and a first, second, and third plurality of contiguous pixels. Each of the first plurality of pixels is connected to the first memory-element and spans diagonally-opposite corners of the pixel-subarray. Each of the second plurality of pixels is connected to the second memory-element and located on a first side of the first plurality of pixels. Each of the third plurality of pixels is connected to the second memory-element and located on a second side of the first plurality of pixels. The rescue-pixel is connected to the intermediate memory-element and is (i) located on one of the first side and the second side and/or (ii) adjacent to one of the first plurality of pixels.

    Determining Depth Information From A Single Camera
    10.
    发明申请
    Determining Depth Information From A Single Camera 有权

    公开(公告)号：US20210176447A1

    公开(公告)日：2021-06-10

    申请号：US17113011

    申请日：2020-12-05

    Applicant: OmniVision Technologies, Inc.

    Inventor： Richard Mann ,  Badrinath Padmanabhan ,  Boyd Fowler ,  Alireza Bonakdar ,  Eiichi Funatsu

    IPC: H04N13/218 ,  G06T7/593 ,  G06T7/571 ,  H04N13/257 ,  H04N5/232

    Abstract: An optical system comprises an imaging lens for imaging an object to an image and a sensing pixel array for detecting lights from the object toward the image. The sensing pixel array comprises a first sensing pixel and a second sensing pixel, each sensing pixel comprising a microlens covering a one-dimensional series of photodiodes having n photodiodes. A photodiode at an end of the one-dimensional series of photodiodes of the first sensing pixel detects a first light from the object toward the image, and a photodiode at an opposite end of the one-dimensional series of photodiodes of the second sensing pixel detects a second light from the object toward the image, where the first light and the second light pass opposite parts of the imaging lens.

Patent Agency Ranking