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1. 发明申请

US20050105616A1 Method of motion estimation in mobile device 失效
标题翻译：移动设备中运动估计的方法
公开(公告)号：US20050105616A1
公开(公告)日：2005-05-19
申请号：US10743714
申请日：2003-12-24
申请人： Seon Kim , Bumho Kim , Pyeong Mah
发明人： Seon Kim , Bumho Kim , Pyeong Mah
IPC分类号： H04N7/32 , G06T7/20 , H04N5/14 , H04N7/26 , H04N7/12
CPC分类号： H04N19/433 , G06T7/223 , G06T2207/10016 , G06T2207/20052 , H04N5/145
摘要： The present invention relates to method to effectively implement motion estimation, which is a part of digital video signal processing algorithm, in mobile device like embedded system with small internal memory space. In the present invention, with recognition to the overlapped block of the reference search area between the current and its next macro block, only non-overlapped blocks are transferred to internal memory when motion estimation of next macro block is performed. So the access of external memory and power consumption is reduced and the usability of internal memory is increased. Then, the system performance to implement complex algorithm of MPEG-4 video encoder in mobile devices is improved.
摘要翻译：本发明涉及在具有小内部存储空间的嵌入式系统的移动设备中有效实现作为数字视频信号处理算法的一部分的运动估计的方法。在本发明中，通过识别当前和下一个宏块之间的参考搜索区域的重叠块，当执行下一个宏块的运动估计时，只有非重叠块被传送到内部存储器。因此，外部存储器的访问和功耗降低，并且内部存储器的可用性增加。然后，提高了在移动设备中实现MPEG-4视频编码器复杂算法的系统性能。

2. 发明申请

US20050111553A1 Fast half-pel searching method on the basis of SAD values according to integer-pel search and random variable corresponding to each macro block 失效
标题翻译：基于SAD值的快速半像素搜索方法，根据整数像素搜索和每个宏块对应的随机变量
公开(公告)号：US20050111553A1
公开(公告)日：2005-05-26
申请号：US10740603
申请日：2003-12-22
申请人： Jinwuk Seok , Pyeong Mah , Hyung Jun , Bumho Kim , Yong Son
发明人： Jinwuk Seok , Pyeong Mah , Hyung Jun , Bumho Kim , Yong Son
IPC分类号： H04N7/32 , H04N5/14 , H04N7/26 , H04N7/12
CPC分类号： H04N5/145 , H04N19/523
摘要： The present invention relates to a half-pel motion estimation method. The calculation object half-pel, which is in the block of the previous or next reference frame, is not estimated additionally for each block of the current frame divided into blocks of a predetermined size. The present invention suggests an algorithm that can perform half-pel search only with a SAD value used in integer-pel search and a random variable for correcting errors. Since the present invention does not have to generate half-pel for motion estimation, the calculation amount is amazingly reduced and the calculation time is reduced.
摘要翻译：半像素运动估计方法技术领域本发明涉及半像素运动估计方法。在前一帧或下一个参考帧的块中的计算对象半像素对于被划分为预定大小的块的当前帧的每个块不附加估计。本发明提出一种算法，它只能使用在整数像素搜索中使用的SAD值和用于校正错误的随机变量来执行半像素搜索。由于本发明不需要生成用于运动估计的半像素，因此计算量惊人地减少并且计算时间减少。

3. 发明申请

US20070104274A1 Fast mode-searching apparatus and method for fast motion-prediction 失效
标题翻译：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：US20070104274A1
公开(公告)日：2007-05-10
申请号：US11375629
申请日：2006-03-14
申请人： Byung Kim , Suk Song , Seon Kim , Pyeong Mah
发明人： Byung Kim , Suk Song , Seon Kim , Pyeong Mah
IPC分类号： H04N11/04
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P16x16，P16x8和P8x16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，则选择性模式搜索单元执行帧内模式搜索。

4. 发明申请

US20060280248A1 Fast motion estimation apparatus and method using block matching algorithm 失效
标题翻译：快速运动估计装置和方法采用块匹配算法
公开(公告)号：US20060280248A1
公开(公告)日：2006-12-14
申请号：US11243095
申请日：2005-10-04
申请人： Byung Kim , Pyeong Mah , Seon Kim , Suk Song
发明人： Byung Kim , Pyeong Mah , Seon Kim , Suk Song
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66
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。

5. 发明申请

US20070040837A1 Motion vector estimation method and continuous picture generation method based on convexity property of sub pixel 审中-公开
标题翻译：基于子像素凸度属性的运动矢量估计方法和连续图像生成方法
公开(公告)号：US20070040837A1
公开(公告)日：2007-02-22
申请号：US11501980
申请日：2006-08-10
申请人： Jin Seok , Pyeong Mah , Bum Kim , Hyung Jun , Jeong Lee
发明人： Jin Seok , Pyeong Mah , Bum Kim , Hyung Jun , Jeong Lee
IPC分类号： G06T15/70
CPC分类号： H04N19/567 , G06T7/223 , H04N19/523 , H04N19/80
摘要： A motion vector estimation method and continuous discrete image generation method based on a convexity property of a sub-pixel are provided. The method of estimating a motion vector includes: generating an objective function for a differential definition of a sub-pixel system composed of a chain of arbitrary n-tap filters with respect to an arbitrary k-th order sub-pixel, based on the relation between an integer pixel and a sub-pixel generated through linear FIR filtering; and estimating a motion vector of a sub-pixel by applying a conjugated quadratic algorithm to the objective function.
摘要翻译：提供了基于子像素的凸性属性的运动矢量估计方法和连续离散图像生成方法。估计运动矢量的方法包括：基于该关系，产生用于相对于任意k阶子像素的任意n抽头滤波器链组成的子像素系统的差分定义的目标函数在整数像素和通过线性FIR滤波产生的子像素之间; 以及通过对所述目标函数应用共轭二次算法来估计子像素的运动矢量。

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