SURFACE SHAPE RECONSTRUCTION OF A NONRIGID TRANSPARENT OBJECT USING REFRACTION AND MOTION

被引：79
|
作者：
MURASE, H
机构：
[1] NTT Basic Research Labs, Tokyo
来源：
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE | 1992年 / 14卷 / 10期
关键词：
COMPUTER VISION; IMAGE RECOVERY; MOTION ANALYSIS; OPTICAL FLOW; SURFACE RECONSTRUCTION;
D O I：
10.1109/34.159906
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The appearance of a pattern behind a transparent, moving object is distorted by refraction at the moving object's surface. This paper describes an algorithm for reconstructing the surface shape of a nonrigid transparent object, such as water, from the apparent motion of the observed pattern. This algorithm is based on the optical and statistical analysis of the distortions. It consists of the following parts: 1) extraction of optical flow, 2) averaging of each point trajectory obtained from the optical flow sequence, 3) calculation of the surface normal using optical characteristics, and 4) reconstruction of the surface. The algorithm is applied to both synthetic and real images to demonstrate its performance.
引用
收藏
页码：1045 / 1052
页数：8
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