MOTION DISPLACEMENT ESTIMATION USING AN AFFINE MODEL FOR IMAGE MATCHING

被引：42

作者：

FUH, CS

MARAGOS, P

机构：

[1] Harvard Univ, Cambridge, MA

来源：

OPTICAL ENGINEERING | 1991年 / 30卷 / 07期

关键词：

VISUAL COMMUNICATIONS; IMAGE MOTION ANALYSIS; DISPLACEMENT ESTIMATION; BLOCK MATCHING; AFFINE MODELS;

D O I：

10.1117/12.55885

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A model is developed for estimating the displacement field in spatio-temporal image sequences that allows for affine shape deformations of corresponding spatial regions and for affine transformations of the image intensity range. This model includes the block matching method as a special case. The model parameters are found by using a least-squares algorithm. We demonstrate experimentally that the affine matching algorithm performs better in estimating displacements than other standard approaches, especially for long-range motion with possible changes in scene illumination. The algorithm is successfully applied to various classes of moving imagery, including the tracking of cloud motion.

引用

页码：881 / 887

页数：7

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