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13 条记录 (耗时 0.065 秒)

    Apparatus and method for encoding moving picture
    1.
    发明授权
    Apparatus and method for encoding moving picture 有权
    用于编码运动图像的装置和方法

    公开(公告)号：US08144770B2

    公开(公告)日：2012-03-27

    申请号：US11853936

    申请日：2007-09-12

    申请人： Byung Gyu Kim ,  Seon Tae Kim ,  Chang Sik Cho

    发明人： Byung Gyu Kim ,  Seon Tae Kim ,  Chang Sik Cho

    IPC分类号： H04N7/12

    CPC分类号： H04N19/19 ,  H04N19/107 ,  H04N19/109 ,  H04N19/127 ,  H04N19/147 ,  H04N19/176 ,  H04N19/61

    摘要： Provided are moving picture encoding apparatus and method skipping intra prediction in encoding mode determination using rate-distortion (RD) costs and determining an encoding mode at high speed. The moving picture encoding method includes the steps of: setting the lowest one of rate-distortion costs of macroblocks adjacent to a macroblock to be encoded as a threshold value; setting the lowest one of mode-specific distortion costs obtained by inter prediction for the macroblock to be encoded as an optimum inter mode distortion cost; comparing the threshold value with the optimum inter mode distortion cost; and when the threshold value is larger than the optimum inter mode distortion cost, as a result of the comparison, skipping intra prediction and setting a mode having the optimum inter mode distortion cost as a final encoding mode.

    摘要翻译： 提供了在使用速率失真（RD）成本的编码模式确定中跳过帧内预测的运动图像编码装置和方法，并且以高速确定编码模式。 运动图像编码方法包括以下步骤：将要编码的宏块相邻的宏块的速率失真成本中的最低速率设置为阈值; 将要编码的宏块的帧间预测获得的模式特定失真成本中的最低一个设置为最佳帧间失真成本; 将阈值与最佳帧间失真成本进行比较; 并且当阈值大于最佳帧间失真成本时，作为比较的结果，跳过帧内预测并将具有最佳帧间失真成本的模式设置为最终编码模式。

    Fast mode-searching apparatus and method for fast motion-prediction
    2.
    发明授权
    Fast mode-searching apparatus and method for fast motion-prediction 失效
    用于快速运动预测的快速模式搜索装置和方法

    公开(公告)号：US07903736B2

    公开(公告)日：2011-03-08

    申请号：US11375629

    申请日：2006-03-14

    申请人： Byung Gyu Kim ,  Suk Kyu Song ,  Seon Tae Kim ,  Pyeong Soo Mah

    发明人： Byung Gyu Kim ,  Suk Kyu Song ,  Seon Tae Kim ,  Pyeong Soo Mah

    IPC分类号： H04N7/12

    CPC分类号： H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/61

    摘要： Provided is a fast mode-searching apparatus and method for motion-prediction. The fast mode-searching apparatus includes a probability information obtaining unit, a first inter mode searching unit, a second inter mode searching unit, and a selective intra mode searching unit. The probability information obtaining unit detects whether at least one of a macroblock of a previous frame, a macroblock of a current frame, and adjacent macroblocks corresponds to at least one of P16×16, P16×8, and P8×16. The first inter mode searching unit performs an inter mode search on a block that is not detected by the probability information obtaining unit. The second inter mode searching unit determines whether the macroblock of the current frame corresponds to P16×16 as a result of performing the inter mode search on a block detected by the probability information obtaining unit. The selective intra mode searching unit performs an intra mode search if the macroblock of the current frame corresponds to P16×16.

    摘要翻译： 提供了一种用于运动预测的快速模式搜索装置和方法。 快速模式搜索装置包括概率信息获取单元，第一帧间模式搜索单元，第二帧间模式搜索单元和选择性帧内模式搜索单元。 概率信息获取单元检测前一帧的宏块，当前帧的宏块和相邻宏块中的至少一个是否对应于P16×16，P16×8和P8×16中的至少一个。 第一帧间模式搜索单元对未由概率信息获取单元检测到的块执行帧间模式搜索。 作为对由概率信息获取单元检测到的块执行帧间模式搜索的结果，第二帧间模式搜索单元确定当前帧的宏块是否对应于P16×16。 如果当前帧的宏块对应于P16×16，则选择性帧内模式搜索单元执行帧内模式搜索。

    Fast motion estimation apparatus and method using block matching algorithm
    3.
    发明授权
    Fast motion estimation apparatus and method using block matching algorithm 失效
    快速运动估计装置和方法采用块匹配算法

    公开(公告)号：US07869518B2

    公开(公告)日：2011-01-11

    申请号：US11243095

    申请日：2005-10-04

    申请人： Byung Gyu Kim ,  Pyeong Soo Mah ,  Seon Tae Kim ,  Suk Kyu Song

    发明人： Byung Gyu Kim ,  Pyeong Soo Mah ,  Seon Tae Kim ,  Suk Kyu Song

    IPC分类号： H04N7/12

    CPC分类号： H04N21/234309 ,  H04N19/40 ,  H04N19/513 ,  H04N19/533 ,  H04N19/56 ,  H04N19/57 ,  H04N19/61 ,  H04N19/70 ,  H04N21/2355 ,  H04N21/2662 ,  H04N21/812

    摘要： A fast motion estimation apparatus and method in which motion estimation is carried out on a current block of a current frame of video image data with reference to a corresponding matching block of a previous frame are provided. The fast motion estimation apparatus includes: a determination unit which determines whether an SAD between pixel values of a current block of a current frame and a corresponding matching block of a previous frame is greater than a predefined threshold; an initial search unit which performs an initial search when the SAD is greater than the predetermined threshold to find which search point of a current search pattern is the minimal SAD point and to determine whether the minimal SAD point matches the center of the current search pattern; and a repetitive search unit which performs an iteration search when the minimal SAD point differs from the center of the current search pattern to reset the minimal SAD point to be a center of the current search pattern and to set a number of search points and the size of a search pattern based on from current search pattern to a center of the search window of the previous frame.

    摘要翻译： 提供了参照前一帧的对应的匹配块对视频图像数据的当前帧的当前块执行运动估计的快速运动估计装置和方法。 快速运动估计装置包括：确定单元，确定当前帧的当前块的像素值与前一帧的对应匹配块之间的SAD是否大于预定阈值; 初始搜索单元，当SAD大于预定阈值时执行初始搜索，以找出当前搜索模式的哪个搜索点是最小SAD点，并确定最小SAD点是否与当前搜索模式的中心匹配; 以及重复搜索单元，当最小SAD点与当前搜索模式的中心不同时执行迭代搜索，以将最小SAD点重置为当前搜索模式的中心，并设置搜索点的数量和大小 基于从当前搜索模式到前一帧的搜索窗口的中心的搜索模式。

    INTRA-MODE PREDICATION SEARCH METHOD AND APPARATUS FOR COMPRESSION OF REAL-TIME VIDEO SIGNAL
    4.
    发明申请
    INTRA-MODE PREDICATION SEARCH METHOD AND APPARATUS FOR COMPRESSION OF REAL-TIME VIDEO SIGNAL 审中-公开
    用于压缩实时视频信号的内部模式预测搜索方法和装置

    公开(公告)号：US20080137743A1

    公开(公告)日：2008-06-12

    申请号：US11950718

    申请日：2007-12-05

    申请人： Byung Gyu Kim ,  Jong Ho Kim ,  Chang Sik Cho

    发明人： Byung Gyu Kim ,  Jong Ho Kim ,  Chang Sik Cho

    IPC分类号： H04N7/48

    CPC分类号： H04N19/11 ,  H04N19/147 ,  H04N19/176

    摘要： Provided is an intra-mode prediction search method for compression of a real-time video signal, the method including the steps of: measuring a Rate-Distortion (R-D) cost of a video-signal macro block received from outside; determining a search threshold value by comparing the R-D cost of the received macro block with R-D costs of neighboring macro blocks; determining an inter mode having the minimum sum of absolute error (SAE) by measuring the SAE of the received macro block for each inter mode; and determining an intra-mode prediction search in response to the minimum SAE of the determined inter mode and the search threshold value.

    摘要翻译： 提供了一种用于压缩实时视频信号的帧内模式预测搜索方法，该方法包括以下步骤：测量从外部接收的视频信号宏块的速率失真（R-D）成本; 通过将接收的宏块的R-D成本与相邻宏块的R-D成本进行比较来确定搜索阈值; 通过针对每个帧间模式测量所接收的宏块的SAE来确定具有最小绝对误差和（SAE）的帧间模式; 以及响应于所确定的帧间模式和搜索阈值的最小SAE来确定帧内模式预测搜索。