基于灰度共生矩阵的激光散斑评价方法

白可; 贺锋涛; 张敏; 孙力

doi:10.7510/jgjs.issn.1001-3806.2016.04.005

基于灰度共生矩阵的激光散斑评价方法

1.
西安邮电大学电子工程学院, 西安 710121

作者简介: 白可(1989-),女,硕士研究生,主要从事激光成像方面的研究.

通讯作者: 贺锋涛, hefengtao@xupt.edu.cn ;

基金项目:
国家自然科学基金资助项目(61201193)
中图分类号: TN249

Evaluation method of laser speckle based on gray level co-occurrence matrix

1.
College of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710121, China

Corresponding author: HE Fengtao, hefengtao@xupt.edu.cn ;

CLC number: TN249

摘要: 为了抑制激光成像中的散斑噪声,采用灰度共生矩阵构建了激光显微散斑分析评价系统。系统采用波长为405nm的激光作为显微系统光源,利用电压驱动音圈电机振动样品对激光散斑噪声大小进行控制,同时采用CCD图像传感器采集不同驱动电压下的激光散斑噪声。通过对散斑噪声的角二阶矩、对比度、熵和逆差距特征参量的分析,较好地表征了激光散斑噪声的变化。结果表明,灰度共生矩阵方法可对激光显微成像中的散斑进行评价。
- 激光技术 /
- 激光散斑 /
- 灰度共生矩阵 /
- 散斑评价
Abstract: In order to suppress speckle noise in laser imaging, a laser microscopic speckle analysis and evaluation system was built by using the gray level co-occurrence matrix. In this system, a 405nm wavelength laser was used as light source of the microscopic system and the vibration of an sample driven by a voice coil motor through voltage was used to control the size of laser speckle noise. At the same time, a CCD image sensor was used to collect laser speckle noise under different driving voltages. Through analyzing the characteristic parameters such as angular second moment, contrast, entropy and inverse difference moment of laser speckle noise, the characteristics of laser speckle noise were appropriately characterized. The results show that the gray level co-occurrence matrix method can be used to evaluate the speckle in laser microscopic imaging.
- laser technique /
- laser speckle /
- gray level co-occurrence matrix /
- speckle evaluation

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基于灰度共生矩阵的激光散斑评价方法

作者简介: 白可(1989-),女,硕士研究生,主要从事激光成像方面的研究.

通讯作者: 贺锋涛, hefengtao@xupt.edu.cn ;

Evaluation method of laser speckle based on gray level co-occurrence matrix

Corresponding author: HE Fengtao, hefengtao@xupt.edu.cn ;

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基于灰度共生矩阵的激光散斑评价方法

通讯作者: 贺锋涛, hefengtao@xupt.edu.cn;

作者简介: 白可(1989-),女,硕士研究生,主要从事激光成像方面的研究

English Abstract

Evaluation method of laser speckle based on gray level co-occurrence matrix

Corresponding author: HE Fengtao, hefengtao@xupt.edu.cn

全文HTML

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基于灰度共生矩阵的激光散斑评价方法

作者简介: 白可(1989-),女,硕士研究生,主要从事激光成像方面的研究.

通讯作者: 贺锋涛, hefengtao@xupt.edu.cn ;

Evaluation method of laser speckle based on gray level co-occurrence matrix

Corresponding author: HE Fengtao, hefengtao@xupt.edu.cn ;

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基于灰度共生矩阵的激光散斑评价方法

通讯作者: 贺锋涛, hefengtao@xupt.edu.cn;

作者简介: 白可(1989-),女,硕士研究生,主要从事激光成像方面的研究

English Abstract

Evaluation method of laser speckle based on gray level co-occurrence matrix

Corresponding author: HE Fengtao, hefengtao@xupt.edu.cn

全文HTML

目录