MOTION ESTIMATION APPARATUS AND METHOD USING PREDICTION ALGORITHM BETWEEN MACROBLOCKS
    1.
    发明申请
    MOTION ESTIMATION APPARATUS AND METHOD USING PREDICTION ALGORITHM BETWEEN MACROBLOCKS 审中-公开
    运动估计装置和使用MACROBLOCK之间的预测算法的方法

    公开(公告)号:US20120163462A1

    公开(公告)日:2012-06-28

    申请号:US13315307

    申请日:2011-12-09

    IPC分类号: H04N7/32 H04N7/26

    CPC分类号: H04N19/109 H04N19/52

    摘要: Disclosed is a motion estimation apparatus and method using a prediction algorithm between macroblocks. In the motion estimation method, an average of a motion vector of a macroblock 1 and a motion vector of a macroblock 3 is determined as a prediction motion vector. A prediction sum of absolute difference (SAD) value of the macroblock 2 is calculated, which is an SAD value based on the prediction motion vector. A reference SAD value for neighboring macroblocks of the macroblock 2 is compared with a value obtained by subtracting a predetermined threshold value from the prediction SAD value. Normal motion vector estimation is performed on the macroblock 2 based on the compared result.

    摘要翻译: 公开了使用宏块之间的预测算法的运动估计装置和方法。 在运动估计方法中,确定宏块1的运动矢量和宏块3的运动矢量的平均值作为预测运动矢量。 计算宏块2的绝对差(SAD)值的预测和,其是基于预测运动矢量的SAD值。 将宏块2的相邻宏块的参考SAD值与通过从预测SAD值减去预定阈值而获得的值进行比较。 基于比较结果对宏块2进行正常运动矢量估计。

    MOTION ESTIMATION APPARATUS AND METHOD
    2.
    发明申请
    MOTION ESTIMATION APPARATUS AND METHOD 审中-公开
    运动估计装置和方法

    公开(公告)号:US20130148733A1

    公开(公告)日:2013-06-13

    申请号:US13556497

    申请日:2012-07-24

    IPC分类号: H04N7/32

    摘要: Disclosed are motion estimation apparatus and method. The present invention can reduce an external memory access in an area in which a macroblock is large while preventing image quality from deteriorating due to motion estimation according to coding units, by obtaining a minimum motion vector using a prediction method in 64×64 and 32×32 modes for the coding units meeting a high efficiency video coding (HEVC) standard and obtaining a motion vector using a full search method in other modes.

    摘要翻译: 公开了运动估计装置和方法。 本发明可以通过使用64×64和32×64的预测方法获得最小运动矢量来减少宏块大的区域中的外部存储器访问,同时通过根据编码单位的运动估计来防止图像质量劣化 满足高效率视频编码(HEVC)标准的编码单元的32种模式,并且在其他模式中使用全搜索方法获得运动矢量。

    NETWORK LOAD REDUCING METHOD AND NODE STRUCTURE FOR MULTIPROCESSOR SYSTEM WITH DISTRIBUTED MEMORY
    3.
    发明申请
    NETWORK LOAD REDUCING METHOD AND NODE STRUCTURE FOR MULTIPROCESSOR SYSTEM WITH DISTRIBUTED MEMORY 失效
    具有分布式存储器的多处理器系统的网络负载减少方法和节点结构

    公开(公告)号:US20110153958A1

    公开(公告)日:2011-06-23

    申请号:US12970909

    申请日:2010-12-16

    IPC分类号: G06F12/00

    摘要: Provided are a network load reducing method and a node structure for a multiprocessor system with a distributed memory. The network load reducing method uses a multiprocessor system including a node having a distributed memory and an auxiliary memory storing a sharer history table. The network load reducing method includes recording the history of a sharer node in the sharer history table of the auxiliary memory, requesting share data with reference to the sharer history table of the auxiliary memory, and deleting share data stored in the distributed memory and updating the sharer history table of the auxiliary memory.

    摘要翻译: 提供了一种用于具有分布式存储器的多处理器系统的网络负载减小方法和节点结构。 网络负载减少方法使用包括具有分布式存储器的节点和存储共享者历史表的辅助存储器的多处理器系统。 网络负载减小方法包括在辅助存储器的共享者历史表中记录共享者节点的历史,参考辅助存储器的共享者历史表请求共享数据,以及删除存储在分布式存储器中的共享数据,并更新 共享历史表的辅助存储器。

    MOTION ESTIMATION APPARATUS AND METHOD
    4.
    发明申请
    MOTION ESTIMATION APPARATUS AND METHOD 有权
    运动估计装置和方法

    公开(公告)号:US20120163461A1

    公开(公告)日:2012-06-28

    申请号:US13297291

    申请日:2011-11-16

    IPC分类号: H04N7/26

    摘要: Disclosed is a motion estimation apparatus and method capable of reduce a memory bandwidth by accessing reference image data occupying the largest part of the memory bandwidth based on a result of motion estimation skip determination. The motion estimation apparatus includes a motion estimation skip determination unit, a sum absolute of absolute difference (SAD) processing unit and a multiplexer (MUX) unit. The motion estimation skip determination unit determines the presence of motion estimation skip by reading current image data and skip reference image data, and outputs a motion vector in a skip mode. The SAD processing unit calculates an SAD value by reading the current image data and reference image data and outputs a motion vector in a normal mode. The MUX unit outputs the motion vector in the skip mode or the motion vector in the normal mode as a final motion vector based on a skip flag signal.

    摘要翻译: 公开了一种运动估计装置和方法,其能够通过基于运动估计跳跃确定的结果访问占用存储器带宽的最大部分的参考图像数据来减少存储器带宽。 运动估计装置包括运动估计跳过确定单元,绝对差(SAD)处理单元和多路复用器(MUX)单元的和绝对值。 运动估计跳过确定单元通过读取当前图像数据并跳过参考图像数据来确定运动估计跳过的存在,并且以跳过模式输出运动矢量。 SAD处理单元通过读取当前图像数据和参考图像数据来计算SAD值,并以正常模式输出运动矢量。 MUX单元基于跳过标志信号将跳过模式中的运动矢量或正常模式中的运动矢量作为最终运动矢量输出。

    APPARATUS FOR DECODING CONTEXT ADAPTIVE VARIABLE LENGTH CODE AND TABLE SEARCH METHOD FOR DECODING CONTEXT ADAPTIVE VARIABLE LENGTH CODE
    5.
    发明申请
    APPARATUS FOR DECODING CONTEXT ADAPTIVE VARIABLE LENGTH CODE AND TABLE SEARCH METHOD FOR DECODING CONTEXT ADAPTIVE VARIABLE LENGTH CODE 审中-公开
    用于解码上下文自适应长度代码和表搜索方法用于解码上下文自适应可变长度代码

    公开(公告)号:US20100074542A1

    公开(公告)日:2010-03-25

    申请号:US12368814

    申请日:2009-02-10

    IPC分类号: G06F7/06 G06F17/30

    摘要: Provided are an apparatus for decoding a minimum memory access-based context adaptive variable length code (CAVLC) of the moving picture compression standard, H.264, and a table search method for decoding a context adaptive variable length code using the same. The apparatus for decoding a context adaptive variable length code may be useful to improve an overall decoding speed since the repeated memory accesses may be reduced to 2 cycles of memory accesses by reconstructing a context adaptive variable length code table of first decoding information (TrailingOnes) and second decoding information (TotalCoefficient) into 2-step tables and storing the reconstructed 2-step tables in advance and performing a table search to decode the first decoding information and the second decoding information, by using the information stored in the 2-step tables, depending on whether the remaining bits except for the number of leading zero are present in the inputted bit stream.

    摘要翻译: 提供了一种用于解码运动图像压缩标准H.264的最小存储器访问上下文自适应可变长度码(CAVLC)的装置,以及用于使用其进行上下文自适应可变长度码的解码的表搜索方法。 用于对上下文自适应可变长度码进行解码的装置对于提高整体解码速度可能是有用的,因为通过重建第一解码信息(TrailingOnes)的上下文自适应可变长度码表,可以将重复的存储器访问减少到2个周期的存储器访问, 第二解码信息(TotalCoefficient)到2步表中,并且通过使用存储在2步表中的信息,预先存储重建的两步表并执行表搜索以解码第一解码信息和第二解码信息, 取决于在输入的比特流中是否存在除了前导零的数目之外的剩余比特。