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1.中国科学院 上海技术物理研究所 中国科学院红外探测与成像技术重点实验室, 上海 200083
2.中国科学院大学, 北京 100049
3.中国科学院 上海技术物理研究所 启东光电遥感中心, 江苏 启东 226200
[ "赵航斌(1991-), 男, 浙江义乌人, 博士研究生, 2013年于浙江理工大学获得学士学位, 主要从事长波红外及成像光谱仪电子学技术的研究。E-mail:sitpzhb@163.com" ]
[ "刘银年(1971-), 男, 甘肃武威人, 研究员, 博士生导师, 1994年于西北师范大学获得学士学位, 1997年于中国科学院西安光学精密机械研究所获得硕士学位, 2005年于中科院上海技术物理研究所获得博士学位, 主要从事高光谱遥感成像技术方面的研究。E-mail:ynliu@mail.sitp.ac.cn" ]
收稿日期:2017-12-06,
录用日期:2018-1-24,
纸质出版日期:2018-07-25
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赵航斌, 张宗存, 柴孟阳, 等. 大幅宽长波红外变帧频变焦成像[J]. 光学 精密工程, 2018,26(7):1758-1765.
Hang-bin ZHAO, Zong-cun ZHANG, Meng-yang CHAI, et al. Wide-swath and long-wave infrared zoom imaging method with variable frame rate[J]. Optics and precision engineering, 2018, 26(7): 1758-1765.
赵航斌, 张宗存, 柴孟阳, 等. 大幅宽长波红外变帧频变焦成像[J]. 光学 精密工程, 2018,26(7):1758-1765. DOI: 10.3788/OPE.20182607.1758.
Hang-bin ZHAO, Zong-cun ZHANG, Meng-yang CHAI, et al. Wide-swath and long-wave infrared zoom imaging method with variable frame rate[J]. Optics and precision engineering, 2018, 26(7): 1758-1765. DOI: 10.3788/OPE.20182607.1758.
为了验证变焦扫描大幅宽成像时扫描方向边缘视场图像畸变的矫正效果,并降低扫描镜控制难度。首先分析了变焦成像时扫描镜扫描速度与扫描视场角间非线性变化关系;针对扫描镜变速扫描稳定性低且控制难度大的问题,在结合探测器变帧频分析与实现的基础上,提出采用扫描镜匀角速度扫描结合探测器变帧频变焦成像方法。推导了扫描镜匀角速度扫描时,光学系统焦距、相机实时帧频与扫描成像视场角的关系式。最后基于课题组已有的可连续变焦长波红外光学系统,搭建了一套基于扫描镜扫描成像的大幅宽长波红外变焦实验系统,并利用该系统进行了成像验证。成像结果表明,采用变帧频结合变焦成像方法,可有效抑制大幅宽成像时扫描方向边缘视场图像畸变问题。变帧频成像方法降低了变焦扫描时扫描镜扫描复杂度,证明了变焦扫描方法具备图像畸变矫正能力。
This study aims to verify the effect of image-distortion correction on the edge-field-of-view scanning direction in the case of zoom-scanning wide-swath imaging and to simplify the scanning mirror control. First
the nonlinear relationship between the scanning speed of a scanning mirror and the imaging angle of view during zoom imaging is analyzed. With respect to the problem of low stability and the difficulty of realizing control of the variable-speed scanning of the mirror
uniform angular-velocity scanning with a scanning mirror combined with a variable-frame-rate zoom-imaging detector is proposed based on the analysis and realization of a variable-frame-rate detector. Based on the experimental system
the relationship between the focal length of the optical system
the real-time frame rate of the camera
and the imaging field angles at the time of the uniform angular velocity scanning are determined in order to achieve variable-frame-rate zoom scanning imaging. Finally
a wide-swath long-wave infrared (IR) zoom experiment system based on mirror-scanning imaging is constructed using the pre-existing continuous zooming long-wave IR optical system
and the system is used for imaging verification. The results show that by employing a variable frame rate combined with zoom imaging
the image distortion of the edge-field-of-view can be effectively suppressed in the scan direction in wide-swath imaging. The variable frame rate imaging method simplifies the scan-mirror scanning in zoom scanning
and it is confirmed that the zoom-scanning method is able to eliminate the image distortion.
田国良, 柳钦火, 陈良富, 等.热红外遥感(第2版)[M].北京:电子工业出版社, 2014.
TANG G L, LIU Q H, CHEN L F, et al .. Thermal Remote Sensing, 2th Edition [M]. Beijing:Publishing House of Electronics Industry, 2014. (in Chinese)
BECKER LATIKE. Current and future trends in infrared focal plane array technology[J]. SPIE , 2005, 5881:doi:10.1117/12.625464.
王建宇, 徐卫明, 袁立银, 等.热红外高光谱成像系统的背景抑制和性能优化[J].红外与毫米波学报, 2010, 29(6):419-423.
WANG J Y, XU W M, YUAN L Y, et al .. Background radiation suppression of a thermal infrared hyperspectral imaging system[J]. Journal of Infrared and Millimeter Waves, 2010, 29(6):419-423. (in Chinese)
刘银年, 薛永祺, 王建宇, 等.实用型模块化成像光谱仪[J].红外与毫米波学报, 2002, 21(1):9-14.
LIU Y N, XIU Y Q, WANG J Y, et al .. Operational modular imaging spectormeter[J]. Journal of Infrared and Millimeter Waves , 2002, 21(1):9-14.(in Chinese)
WILLIAM L BARNES, THOMAS S PAGANO, VINCENT V. Prelaunch Characteristics of the Moderate Resolution Imaging Spectroradiometer (MODIS) on EOS-AM1[J]. IEEE transactions on geoscience and remote sensing , 1998, 29(4):1088-1100.
MASH NISHIHAMA, ROBERT WOLFE, DAVID SOLOMON. MODIS Level 1A Earth Location: Algorithm Theoretical Basis Document Version 3. 0[EB/OL]. [1997-08-26] ftp://ftp.ccrs.nrcan.gc.ca/ad/EMS/kkhlopen/ATDB_mod28_v3.pdf ftp://ftp.ccrs.nrcan.gc.ca/ad/EMS/kkhlopen/ATDB_mod28_v3.pdf .
贾益, 王盛, 安居白, 等.中低分辨率卫星影像Bowtie效应的快速去除[J].国土资源遥感, 2016, 28(4):83-87.
JIA Y, WANG SH, AN J B, et al .. Algorithm of Bowtie Effect Removing for low and medium resolution satellite images[J]. Remote Sensing for land & Resources , 2016, 28(4):83-87. (in Chinese)
张宗存, 丁学专, 杨波, 等.超大幅宽低畸变成像系统设计与分析[J].红外与毫米波学报, 2017, 36(1):690-696.
ZHANG Z C, DING X ZH, YANG B, et al .. Design and analysis of super large width and low distortion imaging system[J]. Journal of Infrared and Millimeter Waves , 2017, 36(1):690-696. (in Chinese)
周前飞, 刘晶红, 王宣, 等.航空变焦距斜视成像几何畸变的自动校正[J].光学 精密工程, 2015, 23(10):2927-2940.
ZHOU Q F, LIU J H, WANG X, et al .. Automatic correction of geometric distortion in aerial zoom squint imaging[J]. Opt. Precision Eng ., 2015, 23(10):2927-2940. (in Chinese)
刘小勇, 曹开钦, 孙德新, 等.空间超大幅宽低畸变红外成像扫描控制方法[J].光学 精密工程, 2018, 26(1):208-217.
LIU X Y, CAO K Q, SUN D X, et al .. Scanning control method of spaceborne infrared imaging with wide swath and low distortion[J]. Opt. Precision Eng ., 2018, 26(1):208-217.(in Chinese)
宋盛, 刘重飞, 苑自勇, 等.压电驱动双面快速指向镜的设计[J].光学 精密工程, 2016, 24(11):2777-2782.
SONG SH, LIU CH F, YUAN Z Y, et al .. Design of double-sided fast steering mirror based on piezoelectric actuating[J]. Opt. Precision Eng ., 2016, 24(11):2777-2782. (in Chinese).
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