中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.024 seconds)

    METHOD AND SYSTEM FOR VIDEO CODER AND DECODER JOINT OPTIMIZATION
    12.
    发明公开
    METHOD AND SYSTEM FOR VIDEO CODER AND DECODER JOINT OPTIMIZATION 审中-公开
    视频编码和解码器联合优化的方法和系统

    公开(公告)号：EP2294823A2

    公开(公告)日：2011-03-16

    申请号：EP09759310.7

    申请日：2009-06-03

    Applicant: APPLE INC.

    Inventor： SHI, Xiaojin ,  WU, Hsi-jung

    IPC: H04N7/26 ,  H04N7/50

    CPC classification number: H04N19/86 ,  H04N19/103 ,  H04N19/127 ,  H04N19/154 ,  H04N19/156 ,  H04N19/164 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61

    Abstract: Embodiments of the present invention provide apparatuses and methods of coding video. The apparatuses and methods may further provide coding a source video sequence according to a block-based coding process, estimating processing capabilities of a target decoder, determining if the estimated processing capabilities are sufficient to perform deblocking filtering. If not sufficient, the apparatuses and methods may provide computing deblocking filter strengths for pixel blocks of the source video sequence to be used at decoding, and transmitting the deblocking filter strengths in a coded video data signal with the coded video data. Moreover, if not sufficient, the apparatuses and methods may provide changing coding parameters including, but not limited to, block sizes, transform sizes, and Qmatrix.

    Abstract translation: 本发明的实施例提供了编码视频的设备和方法。 所述装置和方法还可以提供根据基于块的编码过程对源视频序列进行编码，估计目标解码器的处理能力，确定所估计的处理能力是否足以执行解块滤波。 如果不足够，则这些装置和方法可以为将在解码时使用的源视频序列的像素块提供计算解块滤波器强度，并且将编码视频数据信号中的解块滤波器强度与编码视频数据一起发送。 此外，如果不充分，则装置和方法可以提供改变的编码参数，包括但不限于块大小，变换大小和Qmatrix。

    COMPLEXITY-AWARE ENCODING
    14.
    发明公开
    COMPLEXITY-AWARE ENCODING 有权
    VIDEOKODIERUNG BASIEREND AUF DERKOMPLEXITÄTDER编码工具DES DES DEKODERS

    公开(公告)号：EP2070331A2

    公开(公告)日：2009-06-17

    申请号：EP07842240.9

    申请日：2007-09-11

    Applicant: Apple Inc.

    Inventor： NORMILE, Jim ,  PUN, Thomas ,  SHI, Xiaojin ,  TONG, Xin ,  WU, Hsi-Jung

    IPC: H04N7/26

    CPC classification number: H04N19/154 ,  H04N19/156 ,  H04N19/164

    Abstract: Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a state of a target decoder to which the encoded set of data is to be provided. In some embodiments, a set of data is encoded based at least in part upon the states of multiple decoders to which the encoded set of data is to be provided.

    Abstract translation: 公开了至少部分地基于对编码数据的解码复杂度的认识以及目标解码器解码编码数据的能力来对数据进行编码的技术。 在一些实施例中，至少部分地基于要提供编码数据集的目标解码器的状态对数据集进行编码。 在一些实施例中，至少部分地基于要提供编码数据集的多个解码器的状态对数据集进行编码。

    METHOD AND DEVICE FOR REFINING A DEPTH MAP
    15.
    发明公开
    METHOD AND DEVICE FOR REFINING A DEPTH MAP 审中-公开

    公开(公告)号：EP4472192A1

    公开(公告)日：2024-12-04

    申请号：EP24177653.3

    申请日：2024-05-23

    Applicant: Apple Inc.

    Inventor： CHAPDELAINE-COUTURE, Vincent ,  BLANCHET, Jean-Nicola F. ,  SHANKAR, Krishna ,  GAN, Lingwen ,  KIM, Hanme ,  SHI, Xiaojin ,  VARGHESE, Gijesh ,  BAQAI, Farhan A.

    IPC: H04N13/128

    Abstract: In one implementation, a method of performing perspective correction is performed by a device including an image sensor, a display, one or more processors, and non-transitory memory. The method includes: capturing, using the image sensor, an image of a physical environment; obtaining a first depth map including a plurality of depths respectively associated with a plurality of pixels of the image of the physical environment; generating a second depth map by aligning one or more portions of the first depth map based on a control signal associated with the image of the physical environment; transforming, using the one or more processors, the image of the physical environment based on the second depth map; and displaying, via the display, the transformed image.
    In one implementation, a method of performing perspective correction is performed by a device including an image sensor, a display, one or more processors, and non-transitory memory. The method includes: capturing, using the image sensor, an image of a physical environment; obtaining a first depth map including a plurality of depths respectively associated with a plurality of pixels of the image of the physical environment; selecting one or more portions of the first depth map based on a control signal associated with the image of the physical environment; generating a second depth map by refining the one or more portions of the first depth map; transforming, using the one or more processors, the image of the physical environment based on the second depth map; and displaying, via the display, the transformed image.

    SCALABLE VIDEO CODING WITH FILTERING OF LOWER LAYERS
    17.
    发明公开
    SCALABLE VIDEO CODING WITH FILTERING OF LOWER LAYERS 有权
    具有过滤底层可伸缩视频编码

    公开(公告)号：EP2077038A2

    公开(公告)日：2009-07-08

    申请号：EP07844389.2

    申请日：2007-10-18

    Applicant: Apple INC.

    Inventor： WU, Hsi-jung ,  SHI, Xiaojin ,  HASKELL, Barin Geoffrey

    IPC: H04N7/36 ,  H04N7/26

    CPC classification number: H04N19/59 ,  H04N19/44 ,  H04N19/51 ,  H04N19/80

    Abstract: A first improvement is described for prediction of motion vectors to be used in prediction of video data for enhancement layer data. Arbitrary pixelblock partitioning between base layer data and enhancement layer data raises problems to identify base layer motion vectors to be used as prediction sources for enhancement layer motion vectors. The disclosed method develops enhancement layer motion vectors by scaling a base layer pixelblock partition map according to a size difference between the base layer video image and the enhancement layer video image, then identified scale base layer pixelblocks that are co-located with the enhancement layer pixelblocks for which motion vector prediction is to be performed. Motion vectors from the scaled co-located base layer pixelblocks are averaged, weighted according to a degree of overlap between the base layer pixelblocks and the enhancement layer pixelblock. Another improvement is obtained by filtering recovered base layer image data before being provided to an enhancement layer decoder. When a specified filter requires image data outside a prediction region available from a base layer decoder, the prediction region data may be supplemented with previously-decoded data from an enhancement layer at a border of the prediction region.

Patent Agency Ranking