Suppression mechanics of returning wave speckle with multibeams illumination

Rui WANG; Rui-xin SHI

doi:10.3788/OPE.20172509.2333

您当前的位置：

首页 >

文章列表页 >

Suppression mechanics of returning wave speckle with multibeams illumination

更新时间：2020-08-13

- Suppression mechanics of returning wave speckle with multibeams illumination
- Optics and Precision Engineering Vol. 25, Issue 9, Pages: 2333-2338(2017)
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2.吉林大学口腔医学院, 吉林长春 130021
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172509.2333
  CLC： TP929.12
- Received：23 June 2017，
  
  Accepted：15 July 2017，
  
  Published：2017-09
- 稿件说明：
移动端阅览
Rui WANG, Rui-xin SHI. Suppression mechanics of returning wave speckle with multibeams illumination[J]. Optics and precision engineering, 2017, 25(9): 2333-2338.
DOI：

Rui WANG, Rui-xin SHI. Suppression mechanics of returning wave speckle with multibeams illumination[J]. Optics and precision engineering, 2017, 25(9): 2333-2338. DOI： 10.3788/OPE.20172509.2333.

摘要

为了有效抑制激光照射目标表面所产生的散斑效应，提高激光主动成像图像质量，提出采用多光束照明技术，通过理论分析与仿真实验相结合的方式验证了多光束照明在抑制回波散斑效应方面的作用。首先，建立了多光束分光照明模型，理论分析了多光束照明对于完全散射叠加场和部分散射叠加场的散斑抑制原理。在此基础上，根据理论模型构建了仿真实验系统，采用不同能量分配的分光方式，对3种不同表面粗糙度的目标进行了单光束回波散斑对比度和多光束回波散斑对比度实验评估。实验结果表明：等能量4光束照明的回波散斑对比度仅为单光束对比度的1/2，与理论分析结果完全吻合，充分验证了多光束照明技术在回波光场散斑抑制方面的有效性。

Abstract

In order to suppress the speckle effect of target surface induced by laser illumination

and to increase the image quality of laser active imaging

the multibeams illumination technology was adopted and its effect on rejection of returning wave speckle was investigated theoretically and experimentally. The splitting illumination model of multibeams was established. The speckle suppression principle of multibeams illumination in entire speckle superposed field and partly speckle superposed field was analyzed. On the basic of the principle and theory model

the simulation experiment system was set up

where the returning speckle contrast of single beam and multibeams illuminated on three different roughness targets with different splitting ways was evaluated by adjusting the energy distribution. The experiment result indicates that the contrast of homenergic four beam can be reduced to half of that of single beam

which complies to the theory analysis and proof the feasibility of speckle rejection using multibeams illumination.

关键词

Keywords

references

王灿进, 石宁宁, 孙涛, 等.基于光纹特征的激光主动照明图像去模糊[J].光学精密工程, 2016, 24(5): 1159-1167.

WANG C J, SHI N N, SUN T, et al.. Image deblurring for laser active illumination based on light vein features [J]. Opt. Precision Eng., 2016, 24(5): 1159-1167. (in Chinese)

张绍阳, 侯旭阳, 崔华, 等.利用激光散斑获取深度图[J].中国光学, 2016, 9(6): 633-641.

ZHANG SH Y, HOU X Y, CUI H, et al.. Depth image acquisition using laser speckle [J]. Chinese Optics, 2016, 9(6): 633-641. (in Chinese)

GOODMAN J W. Speckle Phenomena in Optics: Theory and Applications [M]. Greenwood Village: Roberts and Company Publishers, 2008.

GOODMAN J W. 光学中的散斑现象: 理论与应用[M]. 曹其智, 陈家璧, 译. 北京: 科学出版社, 2009. GOODMAN J W. Speckle Phenomena in Optics [M]. CAO Q Z, CHEN J B, trans. Beijing: Science Press, 2009. (in Chinese)

DAYTON D, GONGLEWSKI J, ARNAULD C S. Laser speckle and atmospheric scintillation dependence on laser spectral bandwidth [J]. SPIE, 2009, 7476: 74760A.

HIGGS C, BARCLAY H T, BILLMAN K W. Multibeam laser illuminator approach [J]. SPIE, 1999, 3706: 206-215.

王锐.多束部分相干光抑制光强闪烁效应的仿真实验研究[J].发光学报, 2014, 35(7): 835-839.

WANG R. Simulation experiment of using multiple partially coherent beams to limit laser intensity scintillation effect [J]. Chinese Journal of luminescence, 2014, 35(7): 835-839. (in Chinese)

孔平, 杨晖, 林伟民, 等.动态散斑对比度颗粒测量法[J].光学精密工程, 2014, 22(10): 2633-2638.

KONG P, YANG H, LIN W M, et al.. Measurement of particle sizes by contrast of dynamic laser speckle [J]. Opt. Precision Eng., 2014, 22(10): 2633-2638. (in Chinese)

OHTSUBO J, ASAKURA T. Statistical properties of laser speckle produced in the diffraction field [J]. OSA Publishing, 1977, 16(6): 1742-1753.

OHTSUBO J, ASAKURA T. Statistical properties of the sum of partially developed speckle patterns [J]. OSA Publishing, 1977, 1(3): 98-100.

OHTSUBO J. Joint probability density function of partially developed speckle patterns [J]. OSA Publishing, 1988, 27(7): 1290-1292.

Views

519

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

White-light interferometry immune to vibration disturbance over wide frequency region

Influence of pH value on removal effect of fused silica during magnetorheological finishing

Image restoration based on adaptive group images sparse regularization

Magnetostrictive tactile sensor for texture detection

Optical target recognition based on optical path of Mach-Zehnder interferometric

Related Author

HUANG Xiaojin

MI Le

LIU Qian

Chao WANG

Hui DONG

Yun-fei ZHANG

Dong TIAN

Jia-bao LIU

Related Institution

Institute of Machinery Manufacturing Technology， China Academy of Engineering Physics

Institute of Machinery Manufacturing Technology, Chinese Academy of Engineering Physics

College of computer engineering, Jimei University

State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology

Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰