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    Systems, methods, and computer program products for scalable video coding based on coefficient sampling
    42.
    发明授权
    Systems, methods, and computer program products for scalable video coding based on coefficient sampling 有权

    公开(公告)号：US10516898B2

    公开(公告)日：2019-12-24

    申请号：US15961677

    申请日：2018-04-24

    Applicant: Intel Corporation

    Inventor： Wenhao Zhang ,  Yi-Jen Chiu ,  Lidong Xu ,  Yu Han ,  Hong Jiang

    IPC: H04N19/30 ,  H04N19/63 ,  H04N19/36 ,  H04N19/18 ,  H04N19/132 ,  H04N19/157

    Abstract: Methods, systems, and computer program products for the generation of multiple layers of scaled encoded video data compatible with the HEVC standard. Residue from prediction processing may be transformed into coefficients in the frequency domain. The coefficients may then be sampled to create a layer of encoded data. The coefficients may be sampled in different ways to create multiple respective layers. The layers may then be multiplexed and sent to a decoder. There, one or more of the layers may be chosen. The choice of certain layer(s) may be dependent on the desired attributes of the resulting video. A certain level of video quality, frame rate, resolution, and/or bit depth may be desired, for example. The coefficients in the chosen layers may then be assembled to create a version of the residue to be used in video decoding.

    Techniques for inter-layer residual prediction
    46.
    发明授权
    Techniques for inter-layer residual prediction 有权

    公开(公告)号：US10045041B2

    公开(公告)日：2018-08-07

    申请号：US14782593

    申请日：2013-12-23

    Applicant: INTEL CORPORATION

    Inventor： Wenhao Zhang ,  Yi-Jen Chiu ,  Lidong Xu ,  Yu Han ,  Zhipin Deng ,  Xiaoxia Cai

    IPC: H04N11/02 ,  H04N19/51 ,  H04N19/50 ,  H04N19/176 ,  H04N19/30 ,  H04N19/61 ,  H04N19/103 ,  H04N19/157 ,  H04N19/187 ,  H04N19/19

    Abstract: Techniques for inter-layer residual prediction are described. In one embodiment, for example, an apparatus may comprise an encoding component to determine whether a predicted motion for an enhancement layer block is consistent with a predicted motion for a collocated lower-layer block, determine whether to apply inter-layer residual prediction to the enhancement layer block based on whether the predicted motion for the enhancement layer block is consistent with the predicted motion for the collocated lower-layer block, and in response to a determination that inter-layer residual prediction is to be applied to the enhancement layer block, generate a predicted residual for the enhancement layer block based on a residual for the collocated lower-layer block and generate a second-order residual for the enhancement layer block by comparing a calculated residual to the predicted residual. Other embodiments are described and claimed.

    In-Loop Adaptive Wiener Filter for Video Coding and Decoding
    50.
    发明申请
    In-Loop Adaptive Wiener Filter for Video Coding and Decoding 审中-公开
    用于视频编码和解码的环路自适应维纳滤波器

    公开(公告)号：US20160088296A1

    公开(公告)日：2016-03-24

    申请号：US14959417

    申请日：2015-12-04

    Applicant: Intel Corporation

    Inventor： Yi-Jen Chiu ,  Lidong Xu

    IPC: H04N19/117 ,  H04N19/65 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182

    CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/177 ,  H04N19/18 ,  H04N19/182 ,  H04N19/61 ,  H04N19/65 ,  H04N19/82 ,  H04N19/86

    Abstract: A video encoder may use an adaptive Wiener filter inside the core video encoding loop to improve coding efficiency. In one embodiment, the Wiener filter may be on the input to a motion estimation unit and, in another embodiment, it may be on the output of a motion compensation unit. The taps for the Wiener filter may be determined based on characteristics of at least a region of pixel intensities within a picture. Thus, the filtering may be adaptive in that it varies based on the type of video being processed.

    Abstract translation: 视频编码器可以在核心视频编码环路内使用自适应维纳滤波器来提高编码效率。 在一个实施例中，维纳滤波器可以在运动估计单元的输入上，并且在另一个实施例中，其可以在运动补偿单元的输出上。 用于维纳滤波器的抽头可以基于图像内的像素强度的至少一个区域的特性来确定。 因此，滤波可以是适应性的，因为它根据正在处理的视频的类型而变化。

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