SPATIAL DOMAIN FILTERING OF SPECKLE INTERFEROGRAMS DEPICTING VIBRATION MODES

被引：0
|
作者：
Garoi, Florin [1 ]
Schiopu, Paul [2 ]
Apostol, Dan [1 ]
机构：
[1] Natl Inst Lasers Plasma & Radiat Phys, Laser Depart, Bucharest, Romania
[2] Univ Politehn Bucuresti, Optoelect Depart, Bucharest, Romania
来源：
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN-SERIES A-APPLIED MATHEMATICS AND PHYSICS | 2012年 / 74卷 / 01期
关键词：
image processing; speckle interferometry; histogram; median filter; Gaussian filter; vibration; measurement; PATTERN INTERFEROMETRY; FRINGES; SHAPES;
D O I：
暂无
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper we investigate the improvement of speckle interferograms obtained with Digital Speckle Pattern Interferometry (DSPI) from vibration of an aluminium plate with 3.05, 4.18 and 4.56 kHz frequencies. With our algorithm, we obtained a SNR improvement of 0.3, 0.5 and 0.35 respectively for the three studied cases. Histogram equalization is applied to improve both the contrast and dynamic range.
引用
收藏
页码：115 / 124
页数：10
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