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    Methods and apparatus employing a phase detection autofocus (PDAF) optical system
    1.
    发明授权
    Methods and apparatus employing a phase detection autofocus (PDAF) optical system 有权

    公开(公告)号：US11843860B2

    公开(公告)日：2023-12-12

    申请号：US18049601

    申请日：2022-10-25

    Applicant: QUALCOMM Incorporated

    Inventor： Nan Cui ,  Zuguang Xiao ,  Wenbin Wang

    IPC: H04N23/67 ,  G02B7/34

    CPC classification number: H04N23/672 ,  G02B7/34

    Abstract: Apparatus and methods employing a PDAF optical system are disclosed herein. An example apparatus includes an image sensor comprising a plurality of pixels. The plurality of pixels include a set of pixels configurable to be imaging pixels or focus pixels. The image sensor is configured to generate image data of a scene based on received light at the plurality of pixels. The example apparatus also includes a processor coupled to the image sensor. The processor may be configured to receive first image data of a first frame of the scene, determine at least one region of interest or region of non-interest of the first frame, select, based on the determined at least one region of interest or region of non-interest, a subset of the set of pixels to be focus pixels, and cause the selected subset of the set of pixels to operate as focus pixels.

    METHODS AND APPARATUS EMPLOYING A PHASE DETECTION AUTOFOCUS (PDAF) OPTICAL SYSTEM
    2.
    发明申请
    METHODS AND APPARATUS EMPLOYING A PHASE DETECTION AUTOFOCUS (PDAF) OPTICAL SYSTEM 有权

    公开(公告)号：US20210337128A1

    公开(公告)日：2021-10-28

    申请号：US16859821

    申请日：2020-04-27

    Applicant: QUALCOMM Incorporated

    Inventor： Nan Cui ,  Zuguang Xiao ,  Wenbin Wang

    IPC: H04N5/232 ,  G02B7/34

    Abstract: Apparatus and methods employing a PDAF optical system are disclosed herein. An example apparatus includes an image sensor comprising a plurality of pixels. The plurality of pixels include a set of pixels configurable to be imaging pixels or focus pixels. The image sensor is configured to generate image data of a scene based on received light at the plurality of pixels. The example apparatus also includes a processor coupled to the image sensor. The processor may be configured to receive first image data of a first frame of the scene, determine at least one region of interest or region of non-interest of the first frame, select, based on the determined at least one region of interest or region of non-interest, a subset of the set of pixels to be focus pixels, and cause the selected subset of the set of pixels to operate as focus pixels.

    Pixelated programmable neutral density filter array
    3.
    发明授权
    Pixelated programmable neutral density filter array 有权

    公开(公告)号：US12212861B2

    公开(公告)日：2025-01-28

    申请号：US17302483

    申请日：2021-05-04

    Applicant: QUALCOMM Incorporated

    Inventor： Nan Cui ,  Wenbin Wang ,  Zuguang Xiao ,  Zhi Li

    IPC: H04N25/13

    Abstract: In some aspects, a device may receive, from a pixel array of a camera, a first image. The device may configure, based at least in part on the first image, a setting of a filter. The filter may be included within a filter array that is arranged within the camera in association with the pixel array. The device may cause the pixel array to capture a second image. Numerous other aspects are described.

    SALIENCY BASED CAPTURE OR IMAGE PROCESSING
    4.
    发明申请
    SALIENCY BASED CAPTURE OR IMAGE PROCESSING 有权

    公开(公告)号：US20220100054A1

    公开(公告)日：2022-03-31

    申请号：US17480970

    申请日：2021-09-21

    Applicant: QUALCOMM Incorporated

    Inventor： Micha Galor Gluskin ,  Ying Xie Noyes ,  Wenbin Wang ,  Lee-Kang Liu ,  Balakrishna Mandadi ,  Yiqian Wang ,  Nan Cui

    IPC: G03B13/36 ,  H04N5/225 ,  H04N5/235 ,  H04N5/232 ,  G03B3/10

    Abstract: A device for image capture comprises a memory and one or more processors coupled to the memory and configured to: receive, during a preview mode or a recording, a first image, generate a first saliency map indicative of relative saliency of different regions within the first image, wherein the relative saliency of the different regions is indicative of a likelihood of attracting viewer gaze, generate one or more additional images based on manipulating pixels in the first image, generate one or more additional saliency maps indicative of relative saliency of different regions within the one or more additional images, and determine, during the preview mode or the recording, a camera setting based on the first saliency map and the one or more additional saliency maps.

    Motion based exposure control
    7.
    发明授权
    Motion based exposure control 有权

    公开(公告)号：US11671714B1

    公开(公告)日：2023-06-06

    申请号：US17583033

    申请日：2022-01-24

    Applicant: QUALCOMM Incorporated

    Inventor： Zuguang Xiao ,  Ho Sang Lee ,  Wenbin Wang ,  Nan Cui

    IPC: H04N23/73 ,  H04N23/743 ,  H04N23/68

    CPC classification number: H04N23/73 ,  H04N23/6811 ,  H04N23/6845 ,  H04N23/743

    Abstract: Systems and techniques are described herein for capturing images. For instance, a process can include obtaining a first image associated with a first exposure setting and obtaining a second image associated with a second exposure setting that is different from the first exposure setting. The process can include obtaining motion information associated with at least one of the first image and the second image and determining, based on the motion information, that motion associated with a first pixel of the first image exceeds a threshold. The process can include generating, based on the motion information, a fused image including a first set of pixels from the first image and a second set of pixels from the second image. The first set of pixels from the first image includes the first pixel based on the determination that the motion associated with the first pixel exceeds the threshold.

    IMAGE SENSOR WITH PIXELATED CUTOFF FILTER FOR PHASE DETECTION AUTOFOCUS
    8.
    发明申请
    IMAGE SENSOR WITH PIXELATED CUTOFF FILTER FOR PHASE DETECTION AUTOFOCUS 有权

    公开(公告)号：US20210105412A1

    公开(公告)日：2021-04-08

    申请号：US16591525

    申请日：2019-10-02

    Applicant: QUALCOMM Incorporated

    Inventor： Nan Cui ,  Wenbin Wang ,  Zuguang Xiao

    IPC: H04N5/232 ,  H04N5/225

    Abstract: Methods, systems, and devices for image processing are described. A device may emit light from a light source and capture one or more images using an image sensor based on the emitted light. The device may emit light based on identifying a low lighting condition. The image sensor may include a set of non-phase detection pixels, a set of phase detection pixels, and a pixelated filter layer deposited over the set of non-phase detection pixels. The device may perform an autofocus operation based on an image offset associated with at least two phase detection pixels and the one or more images. Subsequently, the device may generate the one or more images based on the autofocus operation.

    Sensitivity-biased pixels
    9.
    发明授权
    Sensitivity-biased pixels 有权

    公开(公告)号：US12022214B2

    公开(公告)日：2024-06-25

    申请号：US18000814

    申请日：2021-08-06

    Applicant: QUALCOMM Incorporated

    Inventor： Loic Francois Segapelli ,  Wenbin Wang ,  Nan Cui ,  Soman Ganesh Nikhara ,  Nikunj Dahyabhai Patel ,  Pradeep Veeramalla ,  Ankita Anil Kumar Chaudha

    IPC: H04N25/585 ,  H04N25/702

    CPC classification number: H04N25/585 ,  H04N25/702

    Abstract: Systems, methods, and non-transitory media are provided for automatic exposure control. An example method can include receiving pixel values captured by a photosensor pixel array (PPA) of an image sensor, wherein one or more pixel values from the pixel values correspond to one or more sensitivity-biased photosensor (SBP) pixels in the PPA and one or more saturated pixel values from the pixel values correspond to one or more other photosensor pixels in the PPA; determining, based on the one or more pixel values, an actual pixel value for the one or more pixel values and/or the one or more saturated pixel values; determining an adjustment factor for at least one of the pixel values based on the actual pixel value and a target exposure value; and based on the adjustment factor, correcting an exposure setting associated with the image sensor and/or at least one of the pixel values.

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