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    DUAL PHASE DETECTION AUTO FOCUS CAMERA SENSOR DATA PROCESSING
    1.
    发明申请
    DUAL PHASE DETECTION AUTO FOCUS CAMERA SENSOR DATA PROCESSING 审中-公开

    公开(公告)号：US20190068869A1

    公开(公告)日：2019-02-28

    申请号：US15693078

    申请日：2017-08-31

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Shankar Kadambala ,  Soman Nikhara ,  Bapineedu Chowdary Gummadi

    IPC: H04N5/232 ,  H04N5/225 ,  H04N5/369

    Abstract: A method of image processing includes capturing two frames of image data using a camera having a phase detection auto focus (PDAF) sensor, subtracting phase difference pixel data associated with the two frames of image data to produce residual phase difference values, detecting a region-of-interest change based on the residual phase differences values, and determining a focus for the PDAF camera sensor based on the detected region-of-interest change. The method may further include compressing the residual phase difference values, sending the compressed residual phase difference values to a processor, and reconstructing, with the processor, the phase difference pixel data from the compressed residual phase difference values.

    CAMERA INITIALIZATION FOR MULTIPLE CAMERA DEVICES
    2.
    发明申请
    CAMERA INITIALIZATION FOR MULTIPLE CAMERA DEVICES 审中-公开

    公开(公告)号：US20190007589A1

    公开(公告)日：2019-01-03

    申请号：US15640175

    申请日：2017-06-30

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Shankar Kadambala ,  Soman Nikhara ,  Pradeep Veeramalla ,  Bapineedu Chowdary Gummadi

    IPC: H04N5/225 ,  H04N5/232 ,  H04N13/02

    Abstract: Methods and devices for camera initialization are disclosed. In some aspects, a device includes a first camera to capture one or more first image frames, a second camera to capture one or more second image frames, and a camera controller coupled to the first camera and the second camera. The camera controller is configured to initialize the first camera, to cause the second camera to capture one or more second image frames while initializing the first camera, to determine an initial capture setting for the first camera based on the one or more second image frames captured by the second camera, and to complete initialization of the first camera using the initial capture setting.

    CORRELATION BASED APPROACH FOR SKIPPING FRAMES
    3.
    发明申请
    CORRELATION BASED APPROACH FOR SKIPPING FRAMES 审中-公开

    公开(公告)号：US20180007336A1

    公开(公告)日：2018-01-04

    申请号：US15366973

    申请日：2016-12-01

    Applicant: QUALCOMM Incorporated

    Inventor： Soman Nikhara ,  Vignesh Bhuvaneshwar

    IPC: H04N9/73 ,  H04N5/232

    CPC classification number: H04N9/735 ,  H04N5/23229

    Abstract: Certain aspects relate to systems, methods, devices and non-transient computer readable medium for correlation based frame skipping of processing intensive image processing algorithms for image adjustments, such as automatic white balance (AWB) operations and automatic exposure correction (AEC) operations. In certain embodiments, if a scene is deemed stable based on determining a correlation between the statistics associated with a current and previous frames, certain steps for the purpose of performing processing intensive image processing algorithms, such as AWB operations and AEC operations, may be skipped.

    DYNAMIC FRAME SKIP FOR AUTO WHITE BALANCE
    4.
    发明申请
    DYNAMIC FRAME SKIP FOR AUTO WHITE BALANCE 有权
    动态框架跳过自动白平衡

    公开(公告)号：US20160360176A1

    公开(公告)日：2016-12-08

    申请号：US15174892

    申请日：2016-06-06

    Applicant: QUALCOMM Incorporated

    Inventor： Soman Nikhara ,  Vignesh Bhuvaneshwar

    IPC: H04N9/73 ,  H04N9/04

    CPC classification number: H04N9/735 ,  H04N1/6077 ,  H04N9/045

    Abstract: Certain aspects relate to systems and techniques for dynamically configuring frame skip for AWB calculations. For example, if RGB gains are deemed to be stable across a number of frames, the frame skip value used for AWB calculations can be increased. Changing RGB gains are indicators of image changes such as a changing scene and/or changing illuminant, which can indicate a need for updated AWB calculations, and accordingly the frame skip value can be set to zero or a low number of frames.

    Abstract translation: 某些方面涉及动态配置AWB计算的跳帧的系统和技术。 例如，如果在多个帧中认为RGB增益是稳定的，则可以增加用于AWB计算的帧跳过值。 改变RGB增益是诸如改变场景和/或改变光源的图像变化的指标，其可以指示需要更新的AWB计算，因此帧跳过值可以被设置为零或低数量的帧。

    Dynamic frame skip for auto white balance
    7.
    发明授权
    Dynamic frame skip for auto white balance 有权

    公开(公告)号：US09860507B2

    公开(公告)日：2018-01-02

    申请号：US15174892

    申请日：2016-06-06

    Applicant: QUALCOMM Incorporated

    Inventor： Soman Nikhara ,  Vignesh Bhuvaneshwar

    IPC: H04N9/73 ,  H04N1/60 ,  H04N9/04

    CPC classification number: H04N9/735 ,  H04N1/6077 ,  H04N9/045

    Abstract: Certain aspects relate to systems and techniques for dynamically configuring frame skip for AWB calculations. For example, if RGB gains are deemed to be stable across a number of frames, the frame skip value used for AWB calculations can be increased. Changing RGB gains are indicators of image changes such as a changing scene and/or changing illuminant, which can indicate a need for updated AWB calculations, and accordingly the frame skip value can be set to zero or a low number of frames.

    USING THE SAME PIXELS TO CAPTURE BOTH SHORT AND LONG EXPOSURE DATA FOR HDR IMAGE AND VIDEO
    10.
    发明申请
    USING THE SAME PIXELS TO CAPTURE BOTH SHORT AND LONG EXPOSURE DATA FOR HDR IMAGE AND VIDEO 审中-公开

    公开(公告)号：US20180376087A1

    公开(公告)日：2018-12-27

    申请号：US15892137

    申请日：2018-02-08

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Shankar Kadambala ,  Soman Nikhara ,  Bapineedu Chowdary Gummadi

    IPC: H04N5/355 ,  H04N5/369 ,  H04N5/232

    Abstract: Systems and methods for performing HDR imaging are described. Aspects of the disclosure may include a camera system that uses the same pixels to capture both short and long exposure pixel data to improve camera hardware efficiency and pixel efficiency, and to reduce power usage by the camera system. In some aspects, exposure of a plurality of pixels available in a device may be started. Pixel data from the plurality of pixels may be captured after a first time period has elapsed to obtain short exposure pixel data. Pixel data from the plurality of pixels may also be captured after a second time period, longer than the first time period, has elapsed to obtain long exposure pixel data. The short exposure pixel data and the long exposure pixel data may be processed to create HDR images and/or videos.

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