Image and depth pixel
    1.
    发明授权

    公开(公告)号:US12040335B2

    公开(公告)日:2024-07-16

    申请号:US17944529

    申请日:2022-09-14

    发明人: Francois Roy

    摘要: A sensor includes pixels supported by a substrate doped with a first conductivity type. Each pixel includes a portion of the substrate delimited by a vertical insulation structure with an image sensing assembly and a depth sensing assembly. The image sensing assembly includes a first region of the substrate more heavily doped with the first conductivity type and a first vertical transfer gate completely laterally surrounding the first region. Each of the depth sensing assemblies includes a second region of the substrate more heavily doped with the first conductivity type a second vertical transfer gate opposite a corresponding portion of the first vertical transfer gate. The second region is arranged between the second vertical transfer gate and the corresponding portion of the first vertical transfer gate.

    DEPTH SENSING SYSTEM AND DEPTH SENSING METHOD

    公开(公告)号:US20240233152A1

    公开(公告)日:2024-07-11

    申请号:US18152741

    申请日:2023-01-10

    IPC分类号: G06T7/50 H04N25/705

    CPC分类号: G06T7/50 H04N25/705

    摘要: A depth sensing system and a depth sensing method are provided. The sensing system includes depth sensing module and a processor for performing the sensing method. The depth sensing method incudes: obtaining a sensed target data set via a depth sensing module; calculating a period number corresponding to a measuring pixel; and calculating an actual range value or an actual depth of the measuring pixel in accordance with a period number and a range value of the measuring pixel. The step of calculating the period number of the target data set includes: calculating a spatial ratio in accordance with the position values of the pixel of optical center and measuring pixel, and a focal length of the depth sensing module; calculating a basic range in accordance with the spatial ratio and an unit depth; and calculating the period number corresponding to the measuring pixel.

    EVENT-BASED CAMERA WITH HIGH-RESOLUTION FRAME OUTPUT

    公开(公告)号:US20240143068A1

    公开(公告)日:2024-05-02

    申请号:US18477529

    申请日:2023-09-28

    申请人: Magic Leap, Inc.

    摘要: A high-resolution image sensor suitable for use in an augmented reality (AR) system to provide low latency image analysis with low power consumption. The AR system can be compact, and may be small enough to be packaged within a wearable device such as a set of goggles or mounted on a frame resembling ordinary eyeglasses. The image sensor may receive information about a region of an imaging array associated with a movable object, selectively output imaging information for that region, and synchronously output high-resolution image frames. The region may be updated dynamically as the image sensor and/or the object moves. The image sensor may output the high-resolution image frames less frequently than the region being updated when the image sensor and/or the object moves. Such an image sensor provides a small amount of data from which object information used in rendering an AR scene can be developed.

    Light receiving element and ranging system

    公开(公告)号:US11940536B2

    公开(公告)日:2024-03-26

    申请号:US17250686

    申请日:2019-08-16

    发明人: Tatsuki Nishino

    IPC分类号: G01S17/89 G01J1/44 H04N25/705

    摘要: The present technology relates to a light receiving element and a ranging system to reduce power consumption. A light receiving element includes a pixel which includes an SPAD, a first transistor configured to set a cathode voltage of the SPAD at a first negative voltage, a voltage conversion circuit configured to convert the cathode voltage of the SPAD upon incidence of a photon and output the converted cathode voltage, and an output unit configured to output a detection signal indicating the incidence of the photon on the SPAD on the basis of the converted cathode voltage. The present technology is applicable to a ranging system that detects a range in a depth direction to a subject, for example.

    Method and apparatus for removing flicker in a video

    公开(公告)号:US11863877B2

    公开(公告)日:2024-01-02

    申请号:US17702457

    申请日:2022-03-23

    摘要: Provided is a method for removing flicker in a video by an electronic device, the method including obtaining a plurality of red-green-blue (RGB) video frames of a scene in a field of preview of a camera included in the electronic device, obtaining a position of at least one light source in the plurality of video frames, obtaining a brightness of the at least one light source based on the position of the light source, obtaining a de-flickering factor for each pixel in the plurality of video frames based on the position of the at least one light source and the brightness of the at least one light source, and applying the de-flickering factor to each of the plurality of video frames to remove the flicker.

    Image sensor for measuring distance and camera module including the same

    公开(公告)号:US11818482B2

    公开(公告)日:2023-11-14

    申请号:US17945688

    申请日:2022-09-15

    IPC分类号: H04N25/705 H04N25/71

    CPC分类号: H04N25/705 H04N25/745

    摘要: An image sensor and a camera are provided. The image sensor includes: a demodulation clock generation circuit configured to generate first to fourth demodulation clock signals respectively having first to fourth phases; a demodulation phase selection circuit configured to generate first to fourth pre-demodulation signals based on the first to fourth demodulation clock signals and a random number that changes for each of a plurality of packets; a delay circuit configured to generate a first delay signals, second delay signals, third delay signals and fourth delay signals by delaying the first to fourth pre-demodulation signals by a plurality of delay phases; and a phase mixer configured to generate first to fourth demodulation signals of which phases are changed based on an address that changes for each of the plurality of packets. The first to fourth phases have a phase difference of 90° from each other.