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    CODING LEAST SIGNFICANT BITS OF PICTURE ORDER COUNT VALUES IDENTIFYING LONG-TERM REFERENCE PICTURES
    71.
    发明申请
    CODING LEAST SIGNFICANT BITS OF PICTURE ORDER COUNT VALUES IDENTIFYING LONG-TERM REFERENCE PICTURES 有权
    编码最小签名的图片订单数量值识别长期参考图片

    公开(公告)号：US20130142256A1

    公开(公告)日：2013-06-06

    申请号：US13689547

    申请日：2012-11-29

    Applicant: Qualcomm Incorporated

    Inventor： Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian ,  Ying Chen

    IPC: H04N7/26

    CPC classification number: H04N19/50 ,  H04N19/172 ,  H04N19/503 ,  H04N19/58 ,  H04N19/70

    Abstract: In general, techniques are described for coding picture order count values identifying long-term reference pictures. A video decoding device comprising a processor may perform the techniques. The processor may be configured to determine a number of bits used to represent least significant bits of the picture order count value that identifies a long-term reference picture to be used when decoding at least a portion of a current picture and parse the determined number of bits from a bitstream representative of the encoded video data. The parsed bits represent the least significant bits of the picture order count value. The processor retrieves the long-term reference picture from a decoded picture buffer based on the least significant bits, and decodes at least the portion of the current picture using the retrieved long-term reference picture.

    Abstract translation: 通常，描述了用于编码识别长期参考图片的图像顺序计数值的技术。 包括处理器的视频解码设备可以执行这些技术。 处理器可以被配置为确定用于表示图像顺序计数值的最低有效位的位数，其识别当对当前图像的至少一部分进行解码时解析所确定的数量的待使用的长期参考图像 来自表示编码视频数据的比特流的比特。 解析的位表示图像顺序计数值的最低有效位。 处理器基于最低有效位从解码图像缓冲器中检索长期参考图像，并且使用检索的长期参考图片解码至少当前图像的部分。

    ADAPTIVE FRAME SIZE SUPPORT IN ADVANCED VIDEO CODECS
    72.
    发明申请
    ADAPTIVE FRAME SIZE SUPPORT IN ADVANCED VIDEO CODECS 审中-公开
    自适应帧大小支持先进的视频编解码器

    公开(公告)号：US20130089135A1

    公开(公告)日：2013-04-11

    申请号：US13648189

    申请日：2012-10-09

    Applicant: Qualcomm Incorporated

    Inventor： Ying Chen ,  Ye-Kui Wang ,  Marta Karczewicz

    IPC: H04N7/26

    CPC classification number: H04N19/573 ,  H04N19/33 ,  H04N19/423 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70

    Abstract: Techniques are described related to receiving a first decoded frame of video data, wherein the first decoded frame is associated with a first resolution, determining whether a decoded picture buffer is available to store the first decoded frame based on the first resolution, and in the event the decoded picture buffer is available to store the first decoded frame, storing the first decoded frame in the decoded picture buffer, and determining whether the decoded picture buffer is available to store a second decoded frame of video data, wherein the second decoded frame is associated with a second resolution, based on the first resolution and the second resolution, wherein the first decoded frame is different than the second decoded frame.

    Abstract translation: 描述与接收第一解码的视频数据帧相关的技术，其中第一解码帧与第一分辨率相关联，基于第一分辨率确定解码图像缓冲器是否可用于存储第一解码帧，并且在事件 解码图像缓冲器可用于存储第一解码帧，将第一解码帧存储在解码图像缓冲器中，并且确定解码图像缓冲器是否可用于存储视频数据的第二解码帧，其中第二解码帧相关联 基于第一分辨率和第二分辨率，其中第一解码帧与第二解码帧不同。

    Inter-layer picture signaling and related processes
    73.
    发明授权
    Inter-layer picture signaling and related processes 有权

    公开(公告)号：US11438609B2

    公开(公告)日：2022-09-06

    申请号：US14242526

    申请日：2014-04-01

    Applicant: QUALCOMM Incorporated

    Inventor： Ye-Kui Wang ,  Jianle Chen ,  Krishnakanth Rapaka ,  Ying Chen

    IPC: H04N19/30 ,  H04N19/463 ,  H04N19/573 ,  H04N19/70 ,  H04N19/58

    Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory configured to store inter-layer reference pictures associated with a current picture that is being coded. The apparatus further comprises a processor operationally coupled to the memory. In one embodiment, the processor is configured to indicate a number of inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to indicate which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to determine an inter-layer reference picture set associated with the current picture using the indication of the number of inter-layer reference pictures and the indication of which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction.

    Signaling of spatial resolution of depth views in multiview coding file format
    74.
    发明授权
    Signaling of spatial resolution of depth views in multiview coding file format 有权

    公开(公告)号：US11178378B2

    公开(公告)日：2021-11-16

    申请号：US16917476

    申请日：2020-06-30

    Applicant: QUALCOMM Incorporated

    Inventor： Ye-Kui Wang ,  Ying Chen

    IPC: H04N7/18 ,  H04N13/161 ,  H04N19/70 ,  H04N5/76 ,  H04N9/804 ,  H04N19/597 ,  H04N19/46 ,  H04N9/82 ,  H04N5/919 ,  H04N19/44 ,  H04N5/765

    Abstract: Techniques for encapsulating video streams containing multiple coded views in a media file are described herein. In one example, a method includes parsing a track of multiview video data, wherein the track includes at least one depth view. The method further includes parsing information to determine a spatial resolution associated with the depth view, wherein decoding the spatial resolution does not require parsing of a sequence parameter set of the depth view. Another example method includes composing a track of multiview video data, wherein the track includes the one or more views. The example method further includes composing information to indicate a spatial resolution associated with the depth view, wherein decoding the spatial resolution does not require parsing of a sequence parameter set of the depth view.

    Methods and systems of determining object status for false positive removal in object tracking for video analytics
    76.
    发明授权
    Methods and systems of determining object status for false positive removal in object tracking for video analytics 有权

    公开(公告)号：US10402987B2

    公开(公告)日：2019-09-03

    申请号：US15973090

    申请日：2018-05-07

    Applicant: QUALCOMM Incorporated

    Inventor： Ying Chen ,  Yang Zhou ,  Ning Bi

    IPC: G06K9/00 ,  H04N5/225 ,  G06T7/246 ,  G06T7/90 ,  G06K9/03 ,  G06T7/60 ,  G06T7/194

    Abstract: Techniques and systems are provided for maintaining blob trackers for one or more video frames. For example, a blob tracker can be identified for a current video frame. The blob tracker is associated with a blob detected for the current video frame, and the blob includes pixels of at least a portion of one or more objects in the current video frame. One or more characteristics of the blob tracker are determined. The one or more characteristics are based on a bounding region history of the blob tracker. A confidence value is determined for the blob tracker based on the determined one or more characteristics, and a status of the blob tracker is determined based on the determined confidence value. The status of the blob tracker indicates whether to maintain the blob tracker for the one or more video frames. For example, the determined status can include a first type of blob tracker that is output as an identified blob tracker-blob pair, a second type of blob tracker that is maintained for further analysis, or a third type of blob tracker that is removed from a plurality of blob trackers maintained for the one or more video frames.

    Methods and systems of generating a background picture for video coding
    77.
    发明授权
    Methods and systems of generating a background picture for video coding 有权

    公开(公告)号：US10375399B2

    公开(公告)日：2019-08-06

    申请号：US15134183

    申请日：2016-04-20

    Applicant: QUALCOMM Incorporated

    Inventor： Lei Wang ,  Ying Chen ,  Ning Bi ,  Xuerui Zhang ,  Lei Ma ,  Chinchuan Chiu ,  Jianfeng Ren

    IPC: H04N19/159 ,  H04N19/105 ,  H04N19/172 ,  H04N19/182 ,  H04N19/58 ,  H04N19/23 ,  G06T7/254

    Abstract: Techniques and systems are provided for generating a background picture. The background picture can be used for coding one or more pictures. For example, a method of generating a background picture includes generating a long-term background model for one or more pixels of a background picture. The long-term background model includes a statistical model for detecting long-term motion of the one or more pixels in a sequence of pictures. The method further includes generating a short-term background model for the one or more pixels of the background picture. The short-term background model detects short-term motion of the one or more pixels between two or more pictures. The method further includes determining a value for the one or more pixels of the background picture using the long-term background model and the short-term background model.

    Methods and systems for auto-zoom based adaptive video streaming
    79.
    发明授权
    Methods and systems for auto-zoom based adaptive video streaming 有权

    公开(公告)号：US10313417B2

    公开(公告)日：2019-06-04

    申请号：US15433763

    申请日：2017-02-15

    Applicant: QUALCOMM Incorporated

    Inventor： Ying Chen ,  Dashan Gao

    IPC: G06F15/16 ,  H04L29/06 ,  H04N19/105 ,  H04N19/162 ,  H04N19/167 ,  H04N19/33 ,  H04N19/174 ,  H04N19/59

    Abstract: Automatic adaptive zoom enables computing devices that receive video streams to use a higher resolution stream when the user enables zoom, so that the quality of the output video is preserved. In some examples, a tracking video stream and a target video stream are obtained and are processed. The tracking video stream has a first resolution, and the target video stream has a second resolution that is higher than the first resolution. The tracking video stream is processed to define regions of interest for frames of the tracking video stream. The target video stream is processed to generate zoomed-in regions of frames of the target video stream. A zoomed-in region of the target video stream corresponds to a region of interest defined using the tracking video stream. The zoomed-in regions of the frames of the target video stream are then provided for display on a client device.

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