中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

61 records (took 0.025 seconds)

    METHOD AND APPARATUS FOR BLOCK PARTITION OF CHROMA SUBSAMPLING FORMATS
    51.
    发明申请
    METHOD AND APPARATUS FOR BLOCK PARTITION OF CHROMA SUBSAMPLING FORMATS 有权
    用于分离色谱分离格式的方法和装置

    公开(公告)号：US20150304662A1

    公开(公告)日：2015-10-22

    申请号：US14378969

    申请日：2013-04-12

    Applicant: Shan LIU ,  Shaw-Min LEI

    Inventor： Shan Liu ,  Shaw-Min Lei

    IPC: H04N19/159 ,  H04N19/96 ,  H04N19/186 ,  H04N19/61 ,  H04N19/122 ,  H04N19/176

    CPC classification number: H04N19/159 ,  H04N19/122 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/61 ,  H04N19/96

    Abstract: A method and apparatus for video data processing for video in YUV422 or YUV 444 formats are disclosed. In one embodiment, for a 2N×2N luma coding unit (CU) in YUV422 format, the transform process partitions residue data corresponding to the 2N×2N luma CU and the N×2N chroma CU into square luma and chroma transform units (TUs). The residue data associated with the luma and the chroma CUs are generated by applying prediction process to the luma CU and the chroma CU. The transform process is independent of prediction block size or prediction mode associated with the prediction process. In another embodiment, the prediction process splits the CU into two prediction blocks. Transform process is applied on the chroma residue data corresponding to the chroma CU to form one or more chroma TUs, wherein the transform process is dependent on CU size and prediction block size, or CU size and prediction mode.

    Abstract translation: 公开了一种用于YUV422或YUV444格式的视频的视频数据处理的方法和装置。 在一个实施例中，对于YUV422格式的2N×2N亮度编码单元（CU），变换处理将对应于2N×2N亮度CU和N×2N色度CU的残留数据划分为平方亮度和色度变换单位（TU） 。 通过对亮度CU和色度CU应用预测处理来生成与亮度和色度CU相关联的残差数据。 变换过程与预测过程相关的预测块大小或预测模式无关。 在另一个实施例中，预测过程将CU分成两个预测块。 变换处理应用于与色度CU对应的色度残差数据，以形成一个或多个色度TU，其中变换过程取决于CU大小和预测块大小，或CU尺寸和预测模式。

    METHOD AND APPARATUS FOR PREDICTION MODE AND PARTITION MODE SYNTAX CODIND FOR CODING UNITS IN HEVC
    53.
    发明申请
    METHOD AND APPARATUS FOR PREDICTION MODE AND PARTITION MODE SYNTAX CODIND FOR CODING UNITS IN HEVC 审中-公开
    用于HEVC中编码单元的预测模式和分割模式语法编码的方法和装置

    公开(公告)号：US20140211850A1

    公开(公告)日：2014-07-31

    申请号：US14342357

    申请日：2012-08-29

    Applicant: Ximin Zhang ,  Shan Liu

    Inventor： Ximin Zhang ,  Shan Liu

    IPC: H04N19/157 ,  H04N19/66 ,  H04N19/169 ,  H04N19/174

    CPC classification number: H04N19/159 ,  H04N19/13 ,  H04N19/174 ,  H04N19/70

    Abstract: A method and apparatus for coding of syntax elements are disclosed to allow prediction units in P and B slices to share the same syntax coding table. In one embodiment according to the present invention, the method and apparatus coding of syntax elements selectively apply a syntax coding table to encode or decode the syntax element associated with the partition mode of a coding unit of a picture region according to the slice type of the picture region. A first syntax coding table is used to process the syntax element if the slice type is an I mode and a second syntax coding table is used to process the syntax element if the slice type is not an I mode.

    Abstract translation: 公开了用于编码语法元素的方法和装置，以允许P和B片段中的预测单元共享相同的语法编码表。 在根据本发明的一个实施例中，语法元素的方法和装置编码选择性地应用语法编码表，以根据图像区域的切片类型来编码或解码与图像区域的编码单元的分割模式相关联的语法元素 图片区域。 如果片类型是I模式，则第一语法编码表用于处理语法元素，并且如果片类型不是I模式，则使用第二语法编码表来处理语法元素。

    Apparatus and method of constrained partition size for high efficiency video coding
    54.
    发明授权
    Apparatus and method of constrained partition size for high efficiency video coding 有权
    用于高效率视频编码的约束分区大小的装置和方法

    公开(公告)号：US08526495B2

    公开(公告)日：2013-09-03

    申请号：US13012811

    申请日：2011-01-25

    Applicant: Shan Liu ,  Yu-Wen Huang ,  Yung-Chang Chang ,  Shaw-Min Lei

    Inventor： Shan Liu ,  Yu-Wen Huang ,  Yung-Chang Chang ,  Shaw-Min Lei

    IPC: H04B1/66 ,  H04N7/26

    CPC classification number: H04N19/177 ,  H04N19/119 ,  H04N19/122 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/96

    Abstract: An apparatus and method for video coding and decoding with constrained PU partition are disclosed. In the High Efficient Video Coding (HEVC) system, rate-distortion function or other performance criterion usually is evaluated for various CU partition and PU partition during the encoding process in order to select a configuration with best possible performance. The PU design in the current HEVC development results in some redundancy that causes rate-distortion function or other performance criterion repeatedly evaluated for same PU configuration. Accordingly, constrained PU partition is developed to eliminate or reduce the redundancy in processing. Furthermore, necessary syntax to convey the information related to constrained PU partition between an encoder and a decoder is developed. Systems embodying the present invention has been shown to result in sizeable reduction in encoding and decoding time while the performance in terms of RD-rate remains approximately the same or slightly higher than a conventional HEVC system.

    Abstract translation: 公开了一种用于具有约束PU分区的视频编码和解码的装置和方法。 在高效视频编码（HEVC）系统中，通常在编码过程中针对各种CU分区和PU分区评估速率失真函数或其他性能标准，以选择具有最佳性能的配置。 在当前HEVC开发中的PU设计导致一些冗余，导致对相同PU配置重复评估的速率失真功能或其他性能标准。 因此，开发了约束PU分区以消除或减少处理中的冗余。 此外，开发了在编码器和解码器之间传送与约束PU分区有关的信息的必要语法。 已经显示体现本发明的系统导致编码和解码时间的相当大的降低，而在RD速率方面的性能保持与常规HEVC系统大致相同或略高。

    Method for video transcoding with adaptive frame rate control
    55.
    发明授权
    Method for video transcoding with adaptive frame rate control 有权
    用自适应帧速率控制进行视频转码的方法

    公开(公告)号：US08300688B2

    公开(公告)日：2012-10-30

    申请号：US12016049

    申请日：2008-01-17

    Applicant: Ligang Lu ,  Shan Liu

    Inventor： Ligang Lu ,  Shan Liu

    IPC: H04N7/12 ,  G06K9/36

    CPC classification number: H04N19/40

    Abstract: A video transcoding method is provided for transcoding a first signal stream compressed by a first coding scheme to a second signal stream compressed by a second coding scheme. The method employs an adaptive frame rate and a joint temporal-spatial rate control technique, such that the overall quality of compressed MPEG video can be significantly enhanced when the transcoding is controlled in the joint temporal (picture or frame rate) and spatial (quantization) domains. One embodiment considers transcoding from high bit rate video with larger image size (e.g. 4CIF/4SIF, CIF) coded by one coding technique, e.g., MPEG-2 to a lower bit rate video with smaller image size (e.g. CIF, QCIF) coded by the same or another coding technique, e.g., MPEG-4.

    Abstract translation: 提供了一种视频转码方法，用于将由第一编码方案压缩的第一信号流转码为由第二编码方案压缩的第二信号流。 该方法采用自适应帧速率和联合时空速率控制技术，使得当在联合时间（图像或帧速率）和空间（量化）控制中进行代码转换时，可以显着增强压缩MPEG视频的总体质量， 域名 一个实施例考虑通过一种编码技术（例如MPEG-2）将较大图像大小（例如4CIF / 4SIF，CIF）的高比特率视频代码转换为具有较小图像大小的较低比特率视频（例如，CIF，QCIF），其由 相同或另一种编码技术，例如MPEG-4。

    UNIDIRECTIONAL SOLIDIFICATION PROCESS AND APPARATUS THEREFOR
    56.
    发明申请
    UNIDIRECTIONAL SOLIDIFICATION PROCESS AND APPARATUS THEREFOR 有权
    独立的固化工艺及其设备

    公开(公告)号：US20120080158A1

    公开(公告)日：2012-04-05

    申请号：US12894998

    申请日：2010-09-30

    Applicant: Shan Liu ,  Jon Conrad Schaeffer ,  Ganjiang Feng ,  Stephen Joseph Balsone

    Inventor： Shan Liu ,  Jon Conrad Schaeffer ,  Ganjiang Feng ,  Stephen Joseph Balsone

    IPC: B22D27/04

    CPC classification number: B22D27/045

    Abstract: An apparatus and method for casting an alloy using a unidirectional casting technique. The apparatus includes a mold adapted to contain a molten quantity of an alloy, a primary heating zone adapted to heat the mold and the molten alloy therein to a temperature above the liquidus temperature of the alloy, a cooling zone adapted to cool the mold and molten alloy therein to a temperature below the solidus temperature of the alloy and thereby yield the unidirectionally-solidified casting, and an insulation zone between the primary heating zone and the cooling zone. The apparatus also has a secondary heating zone separated from the insulation zone by the primary heating zone. The secondary heating zone maintains the mold and the molten alloy therein at a temperature below the liquidus temperature of the alloy. The temperatures within the primary and secondary heating zones are individually set and controlled.

    Abstract translation: 一种使用单向铸造技术铸造合金的装置和方法。 该装置包括适于容纳熔融量的合金的模具，适于将模具和其中的熔融合金加热到高于合金液相线温度的温度的主加热区，适于冷却模具和熔融的冷却区 合金的温度低于合金的固相线温度，从而产生单向凝固的铸造，以及主加热区和冷却区之间的绝缘区。 该装置还具有通过主加热区与绝缘区隔开的二次加热区。 二次加热区在低于合金液相线温度的温度下保持模具和熔融合金。 初级加热区和二次加热区内的温度可单独设定和控制。

    Inverse tone mapping for bit-depth scalable image coding
    57.
    发明授权
    Inverse tone mapping for bit-depth scalable image coding 有权
    用于位深度可缩放图像编码的逆色调映射

    公开(公告)号：US08085852B2

    公开(公告)日：2011-12-27

    申请号：US11768434

    申请日：2007-06-26

    Applicant: Shan Liu ,  Anthony Vetro ,  Woo-Shik Kim

    Inventor： Shan Liu ,  Anthony Vetro ,  Woo-Shik Kim

    IPC: H04N11/02 ,  H04B1/66 ,  H04B14/00

    CPC classification number: H04N19/36 ,  H04N19/105 ,  H04N19/126 ,  H04N19/134 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

    Abstract: A method performs inverse tone mapping of an image in a decoder. For each block of each color channel of the image the following steps are performed. A scaling factor is determined for a current block of the image by adding a predicted scaling factor for the current block to a difference between the predicted scaling factor and the scaling factor of an adjacent block. An offset value for the current block is determined by adding a predicted offset for the current block to a difference between the predicted offset value and the offset value of the adjacent block. The scaling factor and the offset value are applied to pixel intensity values of the current block to produce a mapped block in which a bit-depth of the mapped block is greater than the bit-depth of the current block.

    Abstract translation: 一种方法对解码器中的图像执行逆色调映射。 对于图像的每个颜色通道的每个块，执行以下步骤。 通过将当前块的预测缩放因子添加到预测缩放因子和相邻块的缩放因子之间的差异来为图像的当前块确定缩放因子。 通过将当前块的预测偏移量加到预测偏移值和相邻块的偏移值之间的差值来确定当前块的偏移值。 缩放因子和偏移值被应用于当前块的像素强度值，以产生其中映射块的位深大于当前块的位深度的映射块。

    Inverse tone mapping for bit-depth scalable image coding adapted to variable block sizes
    58.
    发明授权
    Inverse tone mapping for bit-depth scalable image coding adapted to variable block sizes 有权
    适用于可变块大小的位深度可缩放图像编码的逆色调映射

    公开(公告)号：US07983496B2

    公开(公告)日：2011-07-19

    申请号：US12039007

    申请日：2008-02-28

    Applicant: Shan Liu ,  Anthony Vetro

    Inventor： Shan Liu ,  Anthony Vetro

    IPC: G06K9/36

    CPC classification number: H04N19/36 ,  H04N19/102 ,  H04N19/126 ,  H04N19/17 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61

    Abstract: A method performs inverse tone mapping of an image in a decoder. For each block of each color channel of the image a scaling factor is determined by adding a predicted scaling factor for the current block to a difference between the predicted scaling factor and the scaling factor of an adjacent block. An offset value for the current block is determined by adding a predicted offset for the current block to a difference between the predicted offset value and the offset value of the adjacent block. The scaling factor and the offset value are applied to pixel intensity values of the current block to produce a mapped block. The inverse tone mapping can also be applied to blocks of different sizes.

    Abstract translation: 一种方法对解码器中的图像执行逆色调映射。 对于图像的每个颜色通道的每个块，通过将当前块的预测缩放因子添加到预测缩放因子和相邻块的缩放因子之间的差来确定缩放因子。 通过将当前块的预测偏移量加到预测偏移值和相邻块的偏移值之间的差值来确定当前块的偏移值。 缩放因子和偏移值被应用于当前块的像素强度值以产生映射块。 逆音调映射也可以应用于不同大小的块。

Patent Agency Ranking