公开(公告)号：US20130223532A1

公开(公告)日：2013-08-29

申请号：US13777434

申请日：2013-02-26

Applicant: VIA Telecom, Inc.

Inventor： Yinglai XI ,  Qiang LI ,  Jumei LI ,  Jianbin HE ,  Jinfeng ZHOU ,  Zhichong CHEN ,  Liu YANG ,  Dong LI

IPC: H04N7/26

CPC classification number: H04N19/547 ,  H04N19/117 ,  H04N19/122 ,  H04N19/433 ,  H04N19/50 ,  H04N19/523 ,  H04N19/533 ,  H04N19/56 ,  H04N19/82

Abstract: A motion estimation method is provided. The method has the following steps of: determining a start searching point according to multiple neighboring macroblocks of a current macroblock, wherein the current macroblock corresponds to a searching window; determining a best candidate pixel according to a first line segment where the start searching point is located, and a second/third line segment above/beneath the first line segment; determining whether the best candidate pixel is located at the first line segment; if so, setting a candidate motion vector corresponding to the best candidate pixel as a first motion vector of the current macroblock; and if not, dynamically adjusting the second line segment or the third line segment in the searching window to update the best candidate pixel, and retrieving the first motion vector of the current macroblock corresponding to the updated best candidate pixel.

Abstract translation: 提供了运动估计方法。 该方法具有以下步骤：根据当前宏块的多个相邻宏块确定开始搜索点，其中当前宏块对应于搜索窗口; 根据所述开始搜索点所在的第一线段确定最佳候选像素，以及在所述第一线段之上/之下确定第二/第三线段; 确定最佳候选像素是否位于第一线段; 如果是，则将与最佳候选像素相对应的候选运动矢量设置为当前宏块的第一运动矢量; 如果不是，则动态地调整搜索窗口中的第二线段或第三线段以更新最佳候选像素，并且检索对应于更新的最佳候选像素的当前宏块的第一运动矢量。