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    VIDEO ENCODING QUALITY THROUGH THE USE OF ONCAMERA SENSOR INFORMATION
    53.
    发明申请
    VIDEO ENCODING QUALITY THROUGH THE USE OF ONCAMERA SENSOR INFORMATION 审中-公开

    公开(公告)号：US20190289322A1

    公开(公告)日：2019-09-19

    申请号：US15462580

    申请日：2017-03-17

    Applicant: GOPRO, INC.

    Inventor： Adeel Abbas ,  Sandeep Doshi ,  Sumit Chawla

    IPC: H04N19/593 ,  H04N19/134 ,  H04N19/51 ,  H04N19/86 ,  H04N19/114 ,  H04N19/177 ,  H04N5/232

    Abstract: Systems and methods for utilizing on-camera sensor information to improve video and/or image encoding quality are discussed herein. Specifically, the systems and methods described herein may utilize on-camera sensor information to adaptively adjust an intra frame insertion rate associated with a sequence of frames. The intra frame insertion rate associated with a sequence of frames may be adjusted based on the motion of the image capturing device while capturing the sequence of frames and a predefined motion threshold associated with the intra frame insertion rate of the sequence of frames. In some implementations, the intra frame insertion rate may be adjusted based on the activity being performed during the capture of the sequence of frames. As such, the encoding of one or more frames within a sequence of frames may be adaptively adjusted to better suit the scene depicted by the sequence of frames.

    Upscaling and downscaling in a camera architecture
    54.
    发明授权
    Upscaling and downscaling in a camera architecture 有权

    公开(公告)号：US10096082B2

    公开(公告)日：2018-10-09

    申请号：US15727568

    申请日：2017-10-07

    Applicant: GoPro, Inc.

    Inventor： Scott Patrick Campbell ,  Paul Mobbs ,  Balineedu Chowdary Adsumilli ,  Sumit Chawla

    IPC: H04N5/232 ,  G06T1/20 ,  G06T3/40 ,  H04N5/374 ,  H04N19/102 ,  H04N9/804 ,  H04N19/42

    Abstract: An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine. The pre-processing engine is configured to perform accelerated processing on received image data, and the compression engine is configured to compress processed image data received from the pre-processing engine. In one embodiment, the image capture accelerator further includes a demultiplexer configured to receive image data captured by an image sensor array implemented within, for example, an image sensor chip. The demultiplexer may output the received image data to an image signal processor when the image data is captured by the image sensor array in a standard capture mode, and may output the received image data to the accelerator circuitry when the image data is captured by the image sensor array in an accelerated capture mode.

    Color model look-up table generation
    59.
    发明授权
    Color model look-up table generation 有权

    公开(公告)号：US09648293B2

    公开(公告)日：2017-05-09

    申请号：US14521460

    申请日：2014-10-22

    Applicant: GoPro, Inc.

    Inventor： Sumit Chawla ,  Elizabeth Torres Edwards ,  Ying Chen

    IPC: H04N5/232 ,  H04N9/64 ,  H04N1/60 ,  H04N9/68

    CPC classification number: H04N9/643 ,  H04N1/6033 ,  H04N9/68

    Abstract: The conversion of RAW data captured by a camera can have artifacts in smoothness of various hues for varying chroma. To optimize smoothness and color accuracy, transform coefficients defining conversion of a standard color model to a target color model are determined. The RAW data is converted to data in a standard color model and the data in the standard color model is converted to data in the target color model using the transform coefficients. The process is repeated for various lightness levels and combined into a look up table to efficiently convert RAW data to data in the target color model for various lightness levels.

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