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：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：EP1574993A1

公开(公告)日：2005-09-14

申请号：EP04354010.3

申请日：2004-03-11

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

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

IPC: G06T7/20

CPC classification number: G06T7/20

Abstract: A system for estimating motion from a sequence of bidimensional arrays of sampled values (e.g. video frames) includes a motion estimator (PC) configured for performing motion estimation between a current frame and a reference frame to derive an estimated motion vector (V). The motion estimator (PC) is configured for performing, if at least one of the components of the estimated motion vector is null, at least one of the steps of:

a) maintaining said reference frame as the reference frame for motion estimation with a further frame in said sequence, and
b) reducing the frame rate of said sequence of arrays.

Preferred application is in optical mouse arrangements.

Abstract translation: 一种用于从采样值（例如视频帧）的二维阵列的序列估计运动系统包括被配置用于当前帧和参考帧之间执行运动估计来导出估计运动向量（V）的运动估计器（PC）。 运动估计器（PC）被配置用于执行，如果所估计的运动向量的分量中的至少一个是零，以下步骤中的至少一个：a）维持所述参考帧作为用于运动估计的参考帧与另外的 所述序列帧，和b）降低阵列的所述序列的帧速率。 优选的应用是在光学鼠标的安排。