公开(公告)号：US07006100B2

公开(公告)日：2006-02-28

申请号：US10677629

申请日：2003-10-02

申请人： Kah-Ho Phong ,  Lucas Y. W. Hui

发明人： Kah-Ho Phong ,  Lucas Y. W. Hui

IPC分类号： G09G5/36 ,  H04N7/12 ,  G06F13/00

CPC分类号： G06T1/60 ,  H04N19/433

摘要： A cache memory system is used in a motion estimation system. The system includes: a first cache memory defined in terms of a first width and a first height, and a second cache memory defined in terms of a second width and a second height, wherein said second height is less than said first height, the cache memory system being operable in one of two modes: the first mode being characterized by banks of memory from the second cache memory being concatenated vertically such that their concatenated height is at least equal to the first height, and said concatenated banks being arranged to be appended to the width of the first cache memory to form a single contiguous address space; and the second mode being characterized by banks of memory from the first and second cache being stacked vertically, and being arranged to be addressed as two separate address spaces.

摘要翻译： 在运动估计系统中使用高速缓冲存储器系统。 该系统包括：根据第一宽度和第一高度定义的第一高速缓存存储器和根据第二宽度和第二高度定义的第二高速缓存存储器，其中所述第二高度小于所述第一高度，高速缓存 存储器系统可以以两种模式之一操作：第一模式的特征在于来自第二高速缓冲存储器的存储器组被垂直级联，使得它们的级联高度至少等于第一高度，并且所述级联存储体被布置为被附加 到第一个高速缓冲存储器的宽度以形成单个连续的地址空间; 并且第二模式的特征在于来自第一和第二高速缓存的存储器组是垂直堆叠的，并且被布置为被寻址为两个单独的地址空间。

公开(公告)号：US06931066B2

公开(公告)日：2005-08-16

申请号：US10715894

申请日：2003-11-18

申请人： Swee-San Tee ,  Kah-Ho Phong ,  Jean-Michel Bard ,  Lucas Y. W. Hui

发明人： Swee-San Tee ,  Kah-Ho Phong ,  Jean-Michel Bard ,  Lucas Y. W. Hui

IPC分类号： H04N7/12 ,  H04N7/26

CPC分类号： H04N19/51

摘要： A method of selecting a motion vector for use in a motion estimation system in which the motion vector defines movement of a block of pixels between a search window and a reference frame. The method includes the steps of scanning a search window in a fixed order for a suitable match with an area of the reference frame such that each search position within a current row or column of the window is one pixel away from a previous search position, defining a preferred point in the search window, calculating a primary norm function with reference to the preferred point for a given position in each row or column, calculating a norm function for each search position based on a linear increment of the primary norm function for the respective row or column, calculating an Absolute Error (AE) for each search position, based on a difference between a given property of the search position and a position in the reference window, and selecting a motion vector, the displacement of the motion vector defined in terms of the search position having the smallest AE and the smallest norm function. An apparatus for performing the method is also disclosed.

摘要翻译： 一种选择用于运动估计系统的运动矢量的方法，其中运动矢量定义搜索窗口和参考帧之间的像素块的移动。 该方法包括以固定顺序扫描搜索窗口以与参考帧的区域进行合适的匹配的步骤，使得窗口的当前行或列内的每个搜索位置距离先前搜索位置一个像素，定义 在搜索窗口中的优选点，参考每行或列中的给定位置的优选点来计算主范数函数，基于各个搜索位置的主范数函数的线性增量来计算每个搜索位置的范数函数 行或列，基于搜索位置的给定属性与参考窗口中的位置之间的差计算每个搜索位置的绝对误差（AE），并且选择运动矢量，定义在 具有最小AE和最小范数函数的搜索位置的项。 还公开了一种用于执行该方法的装置。