JOINT NOISE REDUCTION FOR IN-PHASE AND QUADRATURE COMPONENTS OF AN INDIRECT TIME-OF-FLIGHT SENSOR

    公开(公告)号:US20250037245A1

    公开(公告)日:2025-01-30

    申请号:US18358666

    申请日:2023-07-25

    Abstract: An apparatus configured for sensor processing is configured to receive a current frame of raw data from an indirect ToF sensor, wherein the raw data comprises an in-phase component and a quadrature component for each pixel of the current frame. The apparatus may jointly apply a first spatial noise reduction filter to the in-phase components and the quadrature components of the current frame, jointly apply, after the first spatial noise reduction filter, a temporal filter to the in-phase components and the quadrature components of the current frame, and jointly apply, after the temporal filter, a second spatial noise reduction filter to the in-phase components and the quadrature components of the current frame to produce a filtered current frame. The apparatus may then output the filtered current frame and use the filtered current frame to determine depth value for other applications.

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