Huang Cheng, Zhu Jinshan, Li Zhirong, et al. Brightness measurement of ships navigation at night based on color CCD camera[J]. Opto-Electronic Engineering, 2018, 45(7): 170553. doi: 10.12086/oee.2018.170553
Citation: Huang Cheng, Zhu Jinshan, Li Zhirong, et al. Brightness measurement of ships navigation at night based on color CCD camera[J]. Opto-Electronic Engineering, 2018, 45(7): 170553. doi: 10.12086/oee.2018.170553

Brightness measurement of ships navigation at night based on color CCD camera

    Fund Project: Supported by National Natural Science Foundation of China (51309043)
More Information
  • In order to measure the light environment of the ships navigation at night better, so as to lay the foundation for the evaluation of the light environment of the ships navigation at night and reduce the impact on the safety of the ship's navigation at night, a method of measuring the brightness of the sea light environment by a color CCD camera was proposed. Based on the principle of imaging, the relationship between brightness and camera parameters was deduced and the chromaticity calibration experiment was used to fit the relationship between the three-stimulus value and the standard RGB. The brightness calibration experiment fits out the unknown parameters in the formula and then the brightness measurement formula was determined. The port of Dalian Newport cruise terminal was chosen to verify the measurement formula. The results show that the method can measure the brightness of the light environment of the ships navigation at night, which has high precision.
  • 加载中
  • [1] 翁建军, 周阳.海上光污染对船舶夜航安全的影响及对策分析[J].武汉理工大学学报(交通科学与工程版), 2013, 37(3): 549-552.

    Google Scholar

    Weng J J, Zhou Y. Analysis of impact of light pollution at sea upon ships navigation safety at sea and countermeasures[J]. Journal of Wuhan University of Technology (Transportation Science & Engineering), 2013, 37(3): 549-552.

    Google Scholar

    [2] 朱金善, 孙立成, 戴冉, 等.海上光污染及对现行《国际海上避碰规则》的修改意见[J].中国航海, 2006(2): 29-33.

    Google Scholar

    Zhu J S, Sun L C, Dai R, et al. Sea light pollution and some amending proposals for the current international regulation for preventing collisions at sea[J]. Navigation of China, 2006(2): 29-33.

    Google Scholar

    [3] 党睿, 王立雄, 刘刚.居住区道路照明检测方法研究[J].照明工程学报, 2015, 26(3): 76-79, 92.

    Google Scholar

    Dang R, Wang L X, Liu G. Research on measurement method of road lighting in residential areas[J]. China Illuminating Engineering Journal, 2015, 26(3): 76-79, 92.

    Google Scholar

    [4] 党睿, 马剑, 刘刚.城市居住区照明检测新技术研究[J].照明工程学报, 2011, 22(2): 16-20.

    Google Scholar

    Dang R, Ma J, Liu G. Research on the new technology of measurement about urban residential areas lighting[J]. China Illuminating Engineering Journal, 2011, 22(2): 16-20.

    Google Scholar

    [5] 李岷舣, 曲兴华, 耿欣, 等.光环境污染监测分类与控制值探索[J].中国环境监测, 2013, 29(2): 51-54.

    Google Scholar

    Li M Y, Qu X H, Geng X, et al. Explore the classification and control values of light pollution monitoring[J]. Environmental Monitoring in China, 2013, 29(2): 51-54.

    Google Scholar

    [6] 顾冰, 詹庆旋, 祝志强.利用数码相机测量亮度分布的实验研究[J].照明工程学报, 2003, 14(1): 15-18, 23.

    Google Scholar

    Gu B, Zhan Q X, Zhu Z Q. Research on measurement of luminance distribution using a digital cameras[J]. China Illuminating Engineering Journal, 2003, 14(1): 15-18, 23.

    Google Scholar

    [7] 周钢, 马鵷鶵, 牟同升.数码成像法测量面发光体亮度[J].光学仪器, 2006(3): 12-16.

    Google Scholar

    Zhou G, Ma Y C, Mou T S. Measuring surface light source luminance by using digital imaging device[J]. Optical Instruments, 2006(3): 12-16.

    Google Scholar

    [8] 俞文杰, 郭子杨, 廖启栗, 等.数码相机的亮度分布测试研究[J].中国计量学院学报, 2014, 25(3): 273-278.

    Google Scholar

    Yu W J, Guo Z Y, Liao Q L, et al. Research on luminance distribution measurement using a digital camera[J]. Journal of China Jiliang University, 2014, 25(3): 273-278.

    Google Scholar

    [9] 何荥, 翁季, 胡英奎, 等.用鱼眼镜头数码相机测试天空亮度分布[J].重庆大学学报, 2010, 33(7): 129-134. doi: 10.11835/j.issn.1000-582X.2010.07.023

    CrossRef Google Scholar

    He Y, Weng J, Hu Y K, et al. Testing sky luminance distribution by fish-eye lens digital cameras[J]. Journal of Chongqing University, 2010, 33(7): 129-134. doi: 10.11835/j.issn.1000-582X.2010.07.023

    CrossRef Google Scholar

    [10] 蔡怀宇, 杨光, 李秀明, 等.双线扫描CCD测量远距离闪光点平均高度[J].光电工程, 2015, 42(5): 1-6.

    Google Scholar

    Cai H Y, Yang G, Li X M, et al. Mean height of long distance burst measurement based on double high speed line scanning CCD[J]. Opto-Electronic Engineering, 2015, 42(5): 1-6.

    Google Scholar

    [11] 黄成, 朱金善.船舶夜航光环境评价指标筛选[J].应用光学, 2017, 38(5): 804-809.

    Google Scholar

    Huang C, Zhu J S. Screening of light environment evaluation indices for ship night navigation[J]. Journal of Applied Optics, 2017, 38(5): 804-809.

    Google Scholar

    [12] Hirning M B, Isoardi G L, Garcia-Hansen V R. Prediction of discomfort glare from windows under tropical skies[J]. Building and Environment, 2016, 113: 107-120.

    Google Scholar

    [13] 王润辉.数字图像处理[M].北京:清华大学出版社, 2013.

    Google Scholar

    Wang R H. Digital Image Processing[M]. Beijing: Tsinghua University Press, 2013.

    Google Scholar

    [14] 易斌, 米红菊, 赵宏伟.基于HDR图像处理的数码相机成像式亮度测量方法[J].光学技术, 2012, 38(2): 191-196.

    Google Scholar

    Yi B, Mi H J, Zhao H W. A new method of DSC's imaging luminance measurement based on HDR image processing[J]. Optical Technique, 2012, 38(2): 191-196.

    Google Scholar

  • Overview: With the continuous improvement of the industrialization and urbanization of human society, the light pollution at sea was increasingly affecting the safe navigation of ships at night. In order to better measure the light environment of ships navigation at night, and evaluate the light environment to reduce the impact of light pollution at sea upon ships navigation at night. Making foundation for the safety of the ship’s night navigation and laying the foundation for the urgent need to choose a measurement tool to measure light pollution at sea. Aiming at the limitations of current light environment measurement tools, this paper proposes a method of using color CCD camera in combination with digital image processing technology to measure the brightness of the sea light environment. Firstly, starting from the principle of a color CCD camera, combining photometry and colorimetry the theoretical theory analyze the feasibility of measuring brightness and determine the photometric parameters that need to be corrected. Secondly, the relationship between brightness and camera parameters was derived based on the principle of camera imaging. The digital image processing software was used to extract the brightness and color information from photos. The Chroma calibration experiment fits the relationship between the tristimulus value of the digital image and the standard RGB. The luminance calibration experiment fits the unknown parameters in the relational expression and then determines the luminance measurement formula. Finally, the measurement formulas of the waters of the Dalian Xingang oil tanker terminal are validated by examples. For a wide range of water CCD camera shooting, in order to avoid the occurrence of a large measurement error, the captured images are divided into regions. These regions are subjected to brightness and chromaticity calibration experiments, and the brightness of each region is measured separately. The brightness values obtained by the standard brightness meter and the color CCD camera were compared and analyzed. According to the analysis results, comparing the accuracy of the domestic standard luminance meter, the error of the method meets the standard of the second luminance meter and is close to the standard of the first luminance meter. The results show that this method is feasible for measuring the light environment brightness of the ships navigation at night exhibiting high accuracy. This method can be used not only to measure the nighttime light environment of ships in port waters but also to measure the brightness values of offshore light environments in other areas such as fishing areas and marine engineering work vessels, which puts forward some problems in the experiment and lays the foundation for follow-up research.

  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Figures(3)

Tables(1)

Article Metrics

Article views(6890) PDF downloads(3170) Cited by(0)

Access History

Other Articles By Authors

Article Contents

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint