3-D SENSING USING LASER SHEET PROJECTION - INFLUENCE OF SPECKLE

被引：7
|
作者：
LI, JL
SU, XY
ZHOU, WS
机构：
[1] Opto-electronics Department, Sichuan University, Chengdu
来源：
OPTICAL REVIEW | 1995年 / 2卷 / 02期
关键词：
IMAGE SPECKLE; LASER TRIANGULATION;
D O I：
10.1007/s10043-995-0144-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In laser triangulation, the determination of the centroid is limited by the image speckle. In this article we present a new method to reduce image speckle. We find the correlation function of image speckle decreases with the change of illumination angle, so for a static object are scan the incident angle within the plane of the light sheet and get a speckle-reduced image, with the time-integration effect of a CCD camera. An analytical description is presented and is experimentally verified.
引用
收藏
页码：144 / 147
页数：4
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