| 光谱学与光谱分析 |
|
|
|
|
|
| Chromatism Analysis of Multispectral Imaging System Based on AOTF and Hardware Compensation Strategy |
| WANG Yao-li1, 2, 3, WEN Ting-dun1, 2, WANG Zhi-bin1, 2, 3*, ZHANG Rui1, 2, 3, SONG Yan-peng1, 2, 3 |
1. Key Laboratory of Instrumentation Science and Dynamic Measurement, North University of China, Taiyuan 030051, China
2. School of Information and Communication Engineering, North University of China, Taiyuan 030051, China
3. Engineering Technology Research Center of Shanxi Province for Opto-Electronic Information and Instrument, North University of China, Taiyuan 030051, China |
|
|
|
|
Abstract In view of the existing chromatism in the AOTF multispectral imaging system causes different wavelength imaging clarity under different focal length , even under the fixed wavelength, due to the horizontal direction (diffraction) spectral broadening, which leads to clear horizontal lines and blurring vertical lines. This paper made a concrete analysis of the chromatism of AOTF, pointing out the causes of imaging blurring. According to the imaging characteristics of AOTF multispectral imaging system, this paper proposed an improved algorithm based on SSIM, which can be used to evaluate the image sharpness. The target of the original algorithm was two images (one as a reference image, the other one as the test image), while the algorithm proposed in this paper made similarity analysis between the adjacent lines in one target image, small similarity in change edges declares great contrast, thus the image is clearer. The image quality caused by chromatism in the AOTF multispectral imaging system can be compensated by automatic focusing system, which mainly based on this algorithm. It has small calculated amount and fast speed. The feasibility and practicability of the compensation strategy were verified through experiments. The results show that this strategy can effectively solve the image blurring caused by chromatism in the AOTF multispectral imaging system, which has an important application value.
|
|
Received: 2015-06-19
Accepted: 2015-10-15
|
|
|
|
Corresponding Authors:
WANG Zhi-bin
E-mail: wangzhibin@nuc.edu.cn
|
|
[1] LIU Ji-fan, MA Yan-hua, ZHANG Lei, et al(刘济帆, 马艳华, 张 雷, 等). Infrared and Laser Engineering(红外与激光工程), 2013, 42(11): 3065.
[2] XU Rui, HE Zhi-ping, CHEN Kai, et al(徐 睿, 何志平, 陈 凯, 等). J. Infrared Millim. Waves(红外与毫米波学报), 2014, 33(3): 327.
[3] WANG Hao, ZHANG Chun-guang, HUANG Jun-feng, et al(王 号, 张春光, 黄峻峰, 等). Acta Optica Sinica(光学学报), 2014, 34(4): 0423002(1-5).
[4] XU Lin-li, LI Hong-ning, SUN Yu-yang, et al(徐林丽, 李宏宁, 孙煜洋, 等). Journal of Optoelectronics·Laser(光电子·激光), 2014, 25(11): 2234.
[5] WANG Wei, ZHENG Zhi-huan, SHEN Hui-liang(王 魏, 郑芝寰, 沈会良). Opto-Electronic Engineering(光电工程), 2014, 40(9): 35.
[6] Yang Yu, Sha Xuejun, Zhang Zonghua. Chinese Optics Letters, 2011, 9(8)：081101.
[7] ZHANG Ze-hong, HE Zhi-ping(张泽红, 何志平). Piezo Electrics & Acoustooptics(压电与声光), 2013, 35(2): 170.
[8] Voelz D, Kodali B. Characterization of an Acousto-Optic Tunable Filter Imaging System. SPIE, 2006, 6302: 63020p.
[9] LIU Ji-fan(刘济帆). Study of Spectrally Programmable Imaging Spectrometer Based on AOTF(基于AOTF的光谱可编程成像光谱技术研究). Shanghai：Shanghai Institute of Technical Physics(上海：中国科学院上海技术物理研究所)，2012.
[10] Xu Rui(徐 睿). Calibration of AOTF Imaging Spectrometer in Deep-Space Exploration Application(深空探测AOTF红外成像光谱仪系统定标技术研究). Hefei：University of Science and Technology of China(合肥：中国科学技术大学)，2013.
[11] YAN Le-le, LI Hui, QIU Ju-neng, et al(闫乐乐, 李 辉, 邱聚能, 等). Journal of Applied Optics(应用光学), 2014, 25(22): 378.
[12] JIN Xin, JIANG Gang-yi, CHEN Fen, et al(靳 鑫, 蒋刚毅, 陈 芬, 等). Journal of Optoelectronics·Laser(光电子·激光), 2014, 25(22): 378.
[13] Qiang Fang, Guo Jin, Sun Tao, et al. Optics & Laser Technology, 2015, 67(4): 183. |
| [1] |
LI Xin-quan1, 2，ZHANG Jun-qiang1, 3*，WU Cong-jun1，MA Jian1, 2，LU Tian-jiao1, 2，YANG Bin3. Optical Design of Airborne Large Field of View Wide Band Polarization Spectral Imaging System Based on PSIM[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 250-257. |
| [2] |
CUI Xiang-yu1, 3, CHENG Lu1, 2, 3*, YANG Yue-ru1, WU Yan-feng1, XIA Xin1, 3, LI Yong-gui2. Color Mechanism Analysis During Blended Spinning of Viscose Fibers Based on Spectral Characteristics[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3916-3923. |
| [3] |
CAO Qian, MA Xiang-cai, BAI Chun-yan, SU Na, CUI Qing-bin. Research on Multispectral Dimension Reduction Method Based on Weight Function Composed of Spectral Color Difference[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2679-2686. |
| [4] |
TAN Hui-jiao, DANG Rui*. Comparison of Raman Spectroscopy and Color Difference in the Light-Induced Color Damage Evaluation of Cultural Heritages With Silk[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(08): 2474-2479. |
| [5] |
ZHAO Kai-qing, DANG Rui*. Evaluation Method for Damage Degree of Light Sources Used to Lighting Colorful Cultural Relics Based on Spectrum Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(06): 1886-1890. |
| [6] |
XUE Shu-ning, YIN Yong*, YU Hui-chun, YUAN Yun-xia, MA Shuai-shuai. Determination of Spoilage Benchmark and Its Hyperspectral Information Representation Method as Well as Construction of Hyperspectral Based Spoilage Early Warning Model During Banana Storage[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(12): 3871-3877. |
| [7] |
WAN Xing, Lü Xin-guang*. Study on the Relationship between the Infrared Spectra Similarity of Inks and the Accuracy of Computer Color Matching[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(03): 711-716. |
| [8] |
LIANG Jing1, 2, NING Si-yu1, LIAN Yu-sheng3, YAO Bu-yun1, SUN Liang1. Study on Evaluation of Color Difference Based on LED Lighting[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3199-3204. |
| [9] |
MA Chong-qi1, 2, CHENG Lu1, JIN Xiao3, MAI Wei1, 2*, LIU Jian-yong1, 2, ZHU Bao-ji1. All Spectral Yarn Color Matching Algorithm Based on Stearns-Noechel Model[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(08): 2488-2492. |
| [10] |
ZHANG Na1, YAN Rui-xiang1*, GUAN Wen-qiang2, WANG Chao3 . Effects of Red Light-Emitting Diode (LED) on the Postharvest Yellowing Change of Broccoli [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(04): 955-959. |
| [11] |
XIE Chuan-qi1, 2, SAHO Yong-ni1, GAO Jun-feng1, HE Yong1* . Study on the Color Determination of Tomato Leaves Stressed by the High Temperature Based on Hyperspectral Imaging [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(12): 3431-3435. |
| [12] |
ZHAO Shou-bo, ZHANG Fu-min*, QU Xing-hua, ZHENG Shi-wei, CHEN Zhe . A Method for Selecting Self-Adoptive Chromaticity of the Projected Markers [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(04): 1120-1123. |
| [13] |
ZHAO Hui-jie, ZHOU Peng-wei*, ZHANG Ying, LI Chong-chong . Lateral Chromatic Aberrations Correction for AOTF Imaging Spectrometer Based on Doublet Prism[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(10): 2869-2874. |
| [14] |
CUI Xiao-yan1, ZHANG Xiao-dong2*. Study of Spectrum Drifting of Primary Colors and Its Impact on Color Rendering Properties[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(08): 2190-2193. |
| [15] |
ZHANG Rong-fu, WANG Liang-liang, WANG Tao, LU Kang, LI Bin-yan, ZHUANG Song-lin . The Characteristics of Multicolor Imaging System for Logarithmic Wavefront Coding[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(07): 1999-2002. |
|
|
|
|
