公开(公告)号：EP1574994B1

公开(公告)日：2012-05-30

申请号：EP04354011.1

申请日：2004-03-11

Applicant: STMicroelectronics Srl ,  STMicroelectronics S.A.

Inventor： Rovati, Fabrizio Simone ,  Zambotti, Paolo Sergio ,  Mellot, Pascal Jean

IPC: G06T7/20

CPC classification number: G06T7/207

公开(公告)号：EP1574993B1

公开(公告)日：2012-09-12

申请号：EP04354010.3

申请日：2004-03-11

Applicant: STMicroelectronics Srl ,  STMicroelectronics SA

Inventor： Rovati, Fabrizio Simone ,  Zambotti, Paolo Sergio ,  Mellot, Pascal Jean

IPC: G06T7/20

CPC classification number: G06T7/20

公开(公告)号：EP1574994A1

公开(公告)日：2005-09-14

申请号：EP04354011.1

申请日：2004-03-11

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics S.A.

Inventor： Rovati, Fabrizio Simone ,  Zambotti, Paolo Sergio ,  Mellot, Pascal Jean

IPC: G06T7/20

CPC classification number: G06T7/207

Abstract: A method for estimating motion in a sequence of bidimensional arrays of sampled values (e.g. video frames), includes the step of generating (104; 114) estimated motion vectors having at least one component along at least one reference axis (x, y). Motion estimation is performed with a given resolution (110, 112), and the method includes at least one of:

dynamically varying (110, 112) the resolution between subsequent estimation steps (114), and
if said estimated motion vectors have two components along two reference axes (x, y), selectively varying (110, 112) the resolution of motion estimation independently along said two axes (x, y).

Preferred application is in optical mouse arrangements.

Abstract translation: 一种用于在采样值（例如视频帧）的二维阵列的序列估计运动的方法，包括：生成步骤（104; 114）沿至少一个参考轴线（X，Y），其具有至少一个分量估计的运动向量。 运动估计执行与给定的分辨率（110，112），并且该方法包括以下至少一个：动态地改变（110，112）的后续估计步骤（114）之间的分辨率，并且如果所述估计的运动矢量沿着具有两个部件 两个参考轴（x，y）的选择性地改变（110，112）的运动估计unabhängig的分辨率沿着所述两个轴（X，Y）。 优选的应用是在光学鼠标的安排。