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公开(公告)号：US10205954B2
公开(公告)日：2019-02-12
申请号：US14520562
申请日：2014-10-22
Applicant: QUALCOMM Incorporated
Inventor： Ying Chen , Fnu Hendry , Ye-Kui Wang
Abstract: In one example, a device for processing video data includes a memory for storing an enhancement layer of video data coded according to an extension of a video coding standard, and one or more processors configured to decode a hierarchy extension descriptor for an elementary stream including the enhancement layer, wherein the hierarchy extension descriptor includes data representative of two or more reference layers on which the enhancement layer depends, wherein the two or more reference layers include a first enhancement layer, conforming to a first scalability dimension, and a second enhancement layer, conforming to a second scalability dimension, and wherein the first scalability dimension is different than the second scalability dimension, and to process the video data based at least in part on the data representative of the two or more reference layers.
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公开(公告)号：US10200709B2
公开(公告)日：2019-02-05
申请号：US13801731
申请日：2013-03-13
Applicant: QUALCOMM Incorporated
Inventor： Ying Chen , Ye-Kui Wang , Li Zhang
IPC: H04N19/58 , H04N19/51 , H04N19/597 , H04N19/52 , H04N19/70
Abstract: In one example, a device includes a video coder configured to code a picture order count (POC) value for a first picture of video data, code a second-dimension picture identifier for the first picture, and code, in accordance with a base video coding specification or an extension to the base video coding specification, a second picture based at least in part on the POC value and the second-dimension picture identifier of the first picture. The video coder may comprise a video encoder or a video decoder. The second-dimension picture identifier may comprise, for example, a view identifier, a view order index, a layer identifier, or other such identifier. The video coder may code the POC value and the second-dimension picture identifier during coding of a motion vector for a block of the second picture, e.g., during advanced motion vector prediction or merge mode coding.
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公开(公告)号：US10194146B2
公开(公告)日：2019-01-29
申请号：US14222459
申请日：2014-03-21
Applicant: QUALCOMM Incorporated
Inventor： Vadim Seregin , Ying Chen
IPC: H04N19/31 , H04N19/58 , H04N19/70 , H04N19/105 , H04N19/187 , H04N19/597
Abstract: An apparatus configured to code (e.g., encode or decode) video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a reference layer and an enhancement layer, the enhancement layer comprising an enhancement layer (EL) picture and the reference layer comprising a reference layer (RL) picture. The processor is configured to generate an inter-layer reference picture (ILRP) by resampling the RL picture; and determine whether, at a predetermined time, a reference picture of the ILRP was a short-term or long-term reference picture with respect to the ILRP. The processor may encode or decode the video information.
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公开(公告)号：US10136143B2
公开(公告)日：2018-11-20
申请号：US14098357
申请日：2013-12-05
Applicant: QUALCOMM Incorporated
Inventor： Li Zhang , Ying Chen , Marta Karczewicz
IPC: H04N19/159 , H04N19/105 , H04N19/597 , H04N19/31 , H04N19/176 , H04N19/70 , H04N19/30 , H04N19/61 , H04N19/103 , H04N19/107 , H04N19/136 , H04N19/187 , H04N19/577
Abstract: In an example, a method of coding video data includes determining a partition mode for coding a block of video data, where the partition mode indicates a division of the block of video data for predictive coding. The method also includes determining whether to code a weighting factor for an inter-view residual prediction process based on the partition mode, where, when the weighting factor is not coded, the inter-view residual prediction process is not applied to predict a residual for the block. The method also includes coding the block of video data with the determined partition mode.
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公开(公告)号：US20180254065A1
公开(公告)日：2018-09-06
申请号：US15637042
申请日：2017-06-29
Applicant: QUALCOMM Incorporated
IPC: G11B27/031 , G11B27/34 , G06T7/73
CPC classification number: G11B27/031 , G06K9/00718 , G06K9/342 , G06K9/38 , G06T7/248 , G06T7/254 , G06T7/74 , G06T2207/30196 , G11B27/34
Abstract: Methods, apparatuses, and computer-readable media are provided for splitting one or more merged blobs for one or more video frames. For example, a merged blob detected for a current video frame is identified. The merged blob includes pixels of at least a portion of at least two foreground objects in a video frame. A first blob tracker and a second blob tracker are associated with the merged blob. A location and/or a size of the first blob tracker associated with the merged blob is adjusted. The merged blob is split into a first blob and a second blob based on a history of blob trackers associated with the merged blob. The first blob is associated with the adjusted first blob tracker and the second blob is associated with the second blob tracker. The first blob and the second blob are then output for object tracking for the current frame.
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Patent Agency Ranking
公开(公告)号：US09998742B2
公开(公告)日：2018-06-12
申请号：US15006994
申请日：2016-01-26
Applicant: QUALCOMM Incorporated
Inventor： Jianle Chen , Hongbin Liu , Ying Chen , Li Zhang , Xiang Li , Xin Zhao , Marta Karczewicz
IPC: H04N19/186 , H04N19/463 , H04N19/105 , H04N19/593
CPC classification number: H04N19/186 , H04N19/105 , H04N19/463 , H04N19/593
Abstract: A system and method for encoding and decoding video data. A predicted residual signal of a target color component is determined as a function of one or more linear parameters of a linear model and of a residual signal of a source color component. A residual signal of the target color component is determined as a function of a remaining residual signal of the target color component and of the predicted residual signal of the target color component.
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公开(公告)号：US09948915B2
公开(公告)日：2018-04-17
申请号：US14339256
申请日：2014-07-23
Applicant: QUALCOMM Incorporated
IPC: H04N19/51 , H04N13/00 , H04N19/176 , H04N19/597 , H04N19/583 , H04N19/513
CPC classification number: H04N13/161 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/597
Abstract: In accordance with one or more techniques of this disclosure, a video coder may divide a current prediction unit (PU) into a plurality of sub-PUs. Each of the sub-PUs may have a size smaller than a size of the PU. Furthermore, the current PU may be in a depth view of the multi-view video data. For each respective sub-PU from the plurality of sub-PUs, the video coder may identify a reference block for the respective sub-PU. The reference block may be co-located with the respective sub-PU in a texture view corresponding to the depth view. The video coder may use motion parameters of the identified reference block for the respective sub-PU to determine motion parameters for the respective sub-PU.
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188.发明申请公开(公告)号：US20180048894A1
公开(公告)日：2018-02-15
申请号：US15402757
申请日：2017-01-10
Applicant: QUALCOMM Incorporated
IPC: H04N19/142 , H04N19/176 , H04N19/182 , H04N19/172
CPC classification number: H04N19/142 , G06T5/007 , G06T5/50 , G06T7/11 , G06T7/136 , G06T7/194 , G06T2207/10016 , G06T2207/30232 , H04N19/172 , H04N19/176 , H04N19/182
Abstract: Techniques and systems are provided for processing video data. For example, techniques and systems are provided for compensating for lighting changes in one or more video frames. To perform the lighting change compensation, a current frame and a background picture are obtained. A frame-level lighting condition change is then detected for the current frame. A block-level comparison of the current frame and the background picture is performed when the frame-level lighting condition change is detected. The block-level comparison includes comparing a block of pixels of the current frame with a corresponding block of pixels of the background picture. Based on the block-level comparison, it is determined that a change in the block of the current frame relative to a previous frame is associated with a change in lighting. Blob-level lighting compensation can also be performed.
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189.发明申请公开(公告)号：US20180047173A1
公开(公告)日：2018-02-15
申请号：US15382244
申请日：2016-12-16
Applicant: QUALCOMM Incorporated
Inventor： Lei Wang , Ying Chen , Jian Wei , Jinglun Gao , Chinchuan Chiu
CPC classification number: G06T7/246 , G06T7/136 , G06T7/194 , G06T7/62 , G06T2207/10016 , G06T2207/20036 , G06T2207/20224 , G06T2207/30232 , G06T2207/30241
Abstract: Techniques and systems are provided for processing video data. For example, techniques and systems are provided for performing content-adaptive object or blob tracking. To perform the content-adaptive object tracking, a blob tracker is associated with a blob generated for a video frame. The blob includes pixels of at least a portion of a foreground object in a video frame. A size of the blob can be determined to be greater than a blob size threshold. The blob tracker can be converted to a normal tracker based on the size of the blob being greater than the size threshold. The associated blob tracker and blob are output as an identified blob tracker-blob pair when the blob tracker is converted to the normal tracker.
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公开(公告)号：US20180046877A1
公开(公告)日：2018-02-15
申请号：US15235999
申请日：2016-08-12
Applicant: QUALCOMM Incorporated
Inventor： Ying Chen , Ning Bi , Lei Wang , Jinglun Gao
CPC classification number: G06K9/4642 , G06K9/00711 , G06K9/38 , G06T7/11 , G06T7/136 , G06T7/194 , G06T7/254 , G06T2207/10016 , G06T2207/30232 , G06T2207/30242
Abstract: Techniques and systems are provided for processing video data. For example, techniques and systems are provided for determining blob size thresholds. Blob sizes of blobs generated for a video frame can be determined. A lower boundary of a category of blob sizes can then be determined that corresponds to a minimum blob size of the video frame. The lower boundary is determined from a plurality of possible blob sizes including the blob sizes of the blobs and one or more other possible blob sizes. One of the possible blob sizes is determined as the lower boundary when one or more lower boundary conditions are met by characteristics of the possible blob size. A blob size threshold for the video frame is assigned as the minimum blob size corresponding to the lower boundary.
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