中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

150 records (took 0.03 seconds)

    Power efficient motion estimation techniques for video encoding
    11.
    发明授权
    Power efficient motion estimation techniques for video encoding 有权
    用于视频编码的功率有效的运动估计技术

    公开(公告)号：US09591326B2

    公开(公告)日：2017-03-07

    申请号：US13638628

    申请日：2010-03-31

    Applicant: Lidong Xu ,  Yi-Jen Chiu ,  Hong Jiang

    Inventor： Lidong Xu ,  Yi-Jen Chiu ,  Hong Jiang

    IPC: H04N19/53 ,  H04N19/30 ,  H04N19/187 ,  H04N19/37 ,  H04N19/33 ,  H04N19/57 ,  H04N19/105 ,  H04N19/174 ,  H04N19/61 ,  H04N19/176 ,  H04N19/573 ,  H04N19/109

    CPC classification number: H04N19/53 ,  H04N19/105 ,  H04N19/109 ,  H04N19/174 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/37 ,  H04N19/57 ,  H04N19/573 ,  H04N19/61

    Abstract: Adaptive control can use hierarchical motion estimation (HME) and/or multiple reference motion estimation (MRME) for the motion estimation of current encoding blocks. Both HME and MRME are allowed in the motion estimation to achieve a high coding gain. Control consists of slice level control and macro-block (MB) level control. A slice is one or more contiguous macroblocks. In slice level control, it is decided to use only one reference frame or use multiple reference frames to coding current slice based on the motion vectors obtained in coarse level motion estimation. In MB level control, it is decided to perform MRME or perform HME for the MB and its subblocks based on the coarse level motion vectors of the MB.

    Abstract translation: 自适应控制可以对当前编码块的运动估计使用分层运动估计（HME）和/或多参考运动估计（MRME）。 在运动估计中允许HME和MRME两者实现高编码增益。 控制由片级控制和宏块（MB）级控制组成。 切片是一个或多个连续的宏块。 在片级控制中，决定仅使用一个参考帧或者使用多个参考帧来基于在粗略级运动估计中获得的运动矢量对当前片进行编码。 在MB级别控制中，决定执行MRME或基于MB的粗略级别运动向量对MB及其子块执行HME。

    CROSS-CHANNEL RESIDUAL PREDICTION
    15.
    发明申请
    CROSS-CHANNEL RESIDUAL PREDICTION 审中-公开
    跨渠道残留预测

    公开(公告)号：US20140219347A1

    公开(公告)日：2014-08-07

    申请号：US14244411

    申请日：2014-04-03

    Applicant: Lidong Xu ,  Yi-Jen Chiu ,  Yu Han ,  Wenhao Zhang

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

    IPC: H04N19/61

    CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/61

    Abstract: Systems, apparatus and methods are described including determining a prediction residual for a channel of video data; and determining, using the first channel's prediction residual, a prediction residual for a second channel of the video data. Further, a prediction residual for a third channel of the video data may be determined using the second channel's prediction residual.

    Abstract translation: 描述了系统，装置和方法，包括确定视频数据的信道的预测残差; 以及使用所述第一信道的预测残差来确定所述视频数据的第二信道的预测残差。 此外，可以使用第二信道的预测残差来确定视频数据的第三信道的预测残差。

    Histogram Segmentation Based Local Adaptive Filter for Video Encoding and Decoding
    16.
    发明申请
    Histogram Segmentation Based Local Adaptive Filter for Video Encoding and Decoding 有权
    用于视频编码和解码的基于直方图分割的局部自适应滤波器

    公开(公告)号：US20140086304A1

    公开(公告)日：2014-03-27

    申请号：US13991592

    申请日：2012-09-24

    Applicant: Lidong Xu ,  Yi-Jen Chiu ,  Wenhao Zhang ,  Hong Jiang

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

    IPC: H04N7/26

    CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/186 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82

    Abstract: Reconstructed picture quality for a video codec system may be improved by categorizing reconstructed pixels into different histogram bins with histogram segmentation and then applying different filters on different bins. Histogram segmentation may be performed by averagely dividing the histogram into M bins or adaptively dividing the histogram into N bins based on the histogram characteristics. Here M and N may be a predefined, fixed, non-negative integer value or an adaptively generated value at encoder side and may be sent to decoder through the coded bitstream.

    Abstract translation: 通过将重建的像素分类为具有直方图分割的不同的直方图箱，然后在不同的箱上应用不同的过滤器，可以改进用于视频编解码器系统的重构图像质量。 直方图分割可以通过将直方图平均地划分成M个箱或者基于直方图特征将直方图自适应地划分成N个箱来执行。 这里M和N可以是编码器侧的预定义的，固定的，非负整数值或自适应产生的值，并且可以通过编码比特流发送到解码器。

    ADAPTIVE CONTRAST ADJUSTMENT TECHNIQUES
    17.
    发明申请
    ADAPTIVE CONTRAST ADJUSTMENT TECHNIQUES 有权
    自适应对比度调整技术

    公开(公告)号：US20120250988A1

    公开(公告)日：2012-10-04

    申请号：US13074257

    申请日：2011-03-29

    Applicant: Ya-Ti Peng ,  Yi-Jen Chiu

    Inventor： Ya-Ti Peng ,  Yi-Jen Chiu

    IPC: G06K9/00

    CPC classification number: G06T5/40 ,  G06K9/38 ,  G06T2207/10016 ,  G06T2207/10024

    Abstract: Techniques are disclosed involving contrast adjustment for images. For example, an input image is classified based on its pixel value characteristics, as expressed in an input brightness histogram. From such a classification, a target histogram distribution for a corresponding output image (i.e., a contrast-adjusted transformation of the input image) may be specified. With the target histogram of the output image specified, a transformation function may be derived that maps input image values to output image values. Moreover, transitions of such transformation functions may be smoothed. Such smoothing may provide advantages, such as a reduction in flickering associated with video data.

    Abstract translation: 公开了涉及图像的对比度调整的技术。 例如，输入图像根据输入亮度直方图所表示的像素值特性进行分类。 根据这样的分类，可以规定对应的输出图像的目标直方图分布（即输入图像的对比度调整变换）。 利用指定的输出图像的目标直方图，可以导出将输入图像值映射到输出图像值的变换函数。 此外，这种变换函数的转换可以被平滑化。 这种平滑可以提供诸如减少与视频数据相关联的闪烁的优点。

    Flexible macroblock ordering and arbitrary slice ordering apparatus, system, and method
    18.
    发明授权
    Flexible macroblock ordering and arbitrary slice ordering apparatus, system, and method 有权
    灵活的宏块排序和任意切片排序装置，系统和方法

    公开(公告)号：US08126046B2

    公开(公告)日：2012-02-28

    申请号：US11479324

    申请日：2006-06-30

    Applicant: Yi-Jen Chiu ,  Prasenjit Biswas

    Inventor： Yi-Jen Chiu ,  Prasenjit Biswas

    IPC: H04N7/12 ,  H04B1/66

    CPC classification number: H04N19/44 ,  H04N19/112 ,  H04N19/129 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/197 ,  H04N19/61 ,  H04N19/70

    Abstract: A system, apparatus, method, and article to process a flexible macroblock ordering and arbitrary slice ordering are described. The apparatus may include a video decoder. The video decoder includes a processor to store coding parameters of one or more neighboring macroblocks in a data buffer. The neighboring macroblocks are previously decoded macroblocks and are adjacent to a current macroblock. The processor is to store control parameters for each of the one or more neighboring macroblocks in the data buffer. The processor is to reconstruct coding parameters for the current macroblock using availability information associated with the neighboring macroblocks.

    Abstract translation: 描述了处理柔性宏块排序和任意片排序的系统，装置，方法和制品。 该装置可以包括视频解码器。 视频解码器包括处理器，用于存储数据缓冲器中的一个或多个相邻宏块的编码参数。 相邻宏块是先前解码的宏块，并且与当前宏块相邻。 处理器用于存储数据缓冲器中的一个或多个相邻宏块中的每一个的控制参数。 处理器使用与相邻宏块相关联的可用性信息来重构当前宏块的编码参数。

    Method and apparatus of content adaptive detailing filtering for digital pictures
    19.
    发明授权
    Method and apparatus of content adaptive detailing filtering for digital pictures 有权
    数字图像内容自适应细化滤波的方法和装置

    公开(公告)号：US07952647B2

    公开(公告)日：2011-05-31

    申请号：US11647023

    申请日：2006-12-27

    Applicant: Yi-Jen Chiu

    Inventor： Yi-Jen Chiu

    IPC: H04N5/21 ,  H04N5/208

    CPC classification number: G06T5/002 ,  G06T5/50 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20012 ,  G06T2207/20192

    Abstract: According to one embodiment, a method is disclosed. The method includes receiving video data performing pre-filtering on the data, performing content analysis is applied to identify an area of the data, applying a two-dimensional (2-D) 2nd gradient operation to extract a high frequency component and normalizing the high frequency component related to high frequency information from a previous picture.

    Abstract translation: 根据一个实施例，公开了一种方法。 该方法包括接收对数据执行预滤波的视频数据，执行内容分析以识别数据的区域，应用二维（2-D）第二梯度操作来提取高频分量并使高标准化 与前一图像的高频信息相关的频率分量。

    METHODS AND SYSTEMS TO ESTIMATE MOTION BASED ON RECONSTRUCTED REFERENCE FRAMES AT A VIDEO DECODER
    20.
    发明申请
    METHODS AND SYSTEMS TO ESTIMATE MOTION BASED ON RECONSTRUCTED REFERENCE FRAMES AT A VIDEO DECODER 有权
    基于视频解码器上重构的参考帧估计运动的方法和系统

    公开(公告)号：US20110002389A1

    公开(公告)日：2011-01-06

    申请号：US12566823

    申请日：2009-09-25

    Applicant: Lidong Xu ,  Yi-Jen Chiu ,  Wenhao Zhang

    Inventor： Lidong Xu ,  Yi-Jen Chiu ,  Wenhao Zhang

    IPC: H04N7/26

    CPC classification number: H04N19/577 ,  H04N19/103 ,  H04N19/137 ,  H04N19/139 ,  H04N19/172 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/57 ,  H04N19/573 ,  H04N19/61

    Abstract: Methods and systems to apply motion estimation (ME) based on reconstructed reference pictures in a B frame or in a P frame at a video decoder. For a P frame, projective ME may be performed to obtain a motion vector (MV) for a current input block. In a B frame, both projective ME and mirror ME may be performed to obtain an MV for the current input block. The ME process can be performed on sub-partitions of the input block, which may reduce the prediction error without increasing the amount of MV information in the bitstream. Decoder-side ME can be applied for the prediction of existing inter frame coding modes, and traditional ME or the decoder-side ME can be adaptively selected to predict a coding mode based on a rate distribution optimization (RDO) criterion.

    Abstract translation: 基于在B帧或视频解码器的P帧中的重建参考图像应用运动估计（ME）的方法和系统。 对于P帧，可以执行投影ME以获得当前输入块的运动矢量（MV）。 在B帧中，可以执行投射ME和镜ME两者以获得当前输入块的MV。 可以在输入块的子分区上执行ME处理，这可以在不增加比特流中的MV信息的量的情况下减少预测误差。 解码器端ME可以应用于现有的帧间编码模式的预测，并且传统的ME或解码器侧的ME可以被自适应地选择以基于速率分布优化（RDO）准则来预测编码模式。

Patent Agency Ranking