光学防抖对提高相机成像清晰度的影响分析

解官宝, 郭喜庆

解官宝, 郭喜庆. 光学防抖对提高相机成像清晰度的影响分析[J]. 应用光学, 2012, 33(2): 278-283.
引用本文: 解官宝, 郭喜庆. 光学防抖对提高相机成像清晰度的影响分析[J]. 应用光学, 2012, 33(2): 278-283.
XIE Guan-bao, GUO Xi-qing. Image stabilizer for improving definition of image[J]. Journal of Applied Optics, 2012, 33(2): 278-283.
Citation: XIE Guan-bao, GUO Xi-qing. Image stabilizer for improving definition of image[J]. Journal of Applied Optics, 2012, 33(2): 278-283.

光学防抖对提高相机成像清晰度的影响分析

详细信息
    通讯作者:

    解官宝(1987-),男,河南人,硕士研究生,主要从事光电检测和控制方面的研究工作。

  • 中图分类号: TN206

Image stabilizer for improving definition of image

  • 摘要: 研究了光学防抖提高相机成像清晰度的原理和效果。从相机成像光路上分析了抖动对成像的影响并给出抖动造成的偏移量的表达式;建立了光学防抖的控制模型,采用PID控制算法,利用MATLAB仿真得出防抖效果;在关闭和开启光学防抖条件下,对成像目标拍摄并经处理后得到2组8幅150112像素的图像。在基于频率域的直方图上,有光学防抖的图像增加10个左右高频分量;在基于空间域的能量梯度曲线上,有光学防抖的图像数量级从104提高到了105。
    Abstract: The principle and effect of image stabilizer for improving the definition of image are studied. First, the influence of shaking on imaging is analyzed according to the light path of camera and the expression of offset d caused by shaking is given; second, the paper establishes the control model of the image stabilizer, uses the proportional-integral-derivative (PID) control algorithm and gets the result of anti-shaking effects with the simulation of MATLAB; last, some objects are shot by a digital camera respectively under the conditions of opening and closing image stabilizer. Two groups, 8 images of 150112 pixels are obtained. Based on the histogram in frequency domain, the image shot with image stabilizer has 10 more high-frequency components than the image shot without image stabilizer on average; based on the energy gradient curve in spatial domain, the order of magnitude of the image shot with image stabilizer increases from 104 to 105.
  • [1]王心怡.望远镜影像稳定系统的设计与实现[D].哈尔滨:哈尔滨工业大学,2007.
    WANG Xin-yi. Design and realization of the image stabilizing system for telescope[D].Harbin: Harbin Institute of Technology, 2007.(in Chinese)
    [2]张博夫.数码相机抖动模糊图像的恢复[J].深圳职业技术学院,2010,9(5):36-41.
    ZHANG Bo-fu. Restoration of blurred images of digital cameras caused by hands shake[J].Journal of Shenzhen Polytechnic, 2010, 9(5):36-41.(in Chinese with an English abstract)
    [3]洪华杰,王学武,翁干飞.光电侦察装备中的反射镜稳定技术[J].应用光学,2011,32(4):591-597.
    HONG Hua-jie, WANG Xue-wu, WENG Gan-fei. Mirror stabilization in electro-optical reconnaissance system[J]. Journal of Applied Optics, 2011, 32(4):591-597.(in Chinese with an English abstract)
    [4]徐之海,李奇,冯华君.摄像、照相系统中的稳像技术[J].照相机,2002.6:4-5.
    XU Zhi-hai, LI Qi, FENG Hua-jun. The image stabilizing for camera and imaging system[J].Camera, 2002,6:4-5. (in Chinese with an English abstract)
    [5]杜井庆,高世桥,罗创,等.基于PID算法的控制量按任意函数变化的一种控制方法[J].仪器仪表学报,2011,32(6):1317-1323.
    DU Jing-qing, GAO Shi-qiao, LUO Chuang. Control method with control quantum varying in the form of arbitrary function based on PID algorithm[J].Chinese Journal of Scientific Instrument, 2011, 32(6):1317-1323.(in Chinese with an English abstract)
    [6]李远生.基于MATLAB自动控制系统建模与仿真[J].湖南电力,2011,31(3):15-18.
    LI Yuan-sheng. Model building and simulation of automatic control system based on MATLAB[J].Hunan Electric Power, 2011, 31 (6): 15-18 (in Chinese with an English abstract)
    [7]高绍姝,金伟其,王岭雪,等.图像融合质量客观评价方法[J] .应用光学,2011,32(4):671-677.
    GAO Shao-shu, JIN Wei-qi, WANG Ling-xue. Objective quality assessment of image fusion[J].Journal of Applied Optics, 2011, 32(4): 671-677 (in Chinese with an English abstract)
    [8]薛立勤.显示图像质量定量评价方法及质量控制研究[D] .武汉:华中科技大学,2007.
    XUE Li-qin. Display image quality quantitative assessment method and the quality control[D].Wuhan: Huazhong University of Science and Technology, 2007.(in Chinese)
    [9]申勤.数字图像清晰度评价函数的研究与改进[J] .微型机与应用,2011,30(1):32-34.
    SHEN Qin. Research and improvement of digital image clarity evaluation function[J].Microcomputer & Its Applications, 2011, 30(1): 32-34.(in Chinese with an English abstract)
    [10]宋康,张涛,廖俊必.图像自相关函数作为清晰度评价函数的理论分析[J] .西南交通大学学报,2008,43(5):578-581.
    SONG Kang, ZHANG Tao, LIAO Junbi. Theoretical analysis of autocorrelation function of image as sharpness evaluation function[J].Journal of Southwest Jiaotong University, 2008,43(5): 578-581.(in Chinese with an English abstract)
    [11]吴利明,陶晓杰.一种新的图像清晰度评价方法[J].仪器仪表用户,2008,15(6):84-86.
    WU Li-ming, TAO Xiao-jie. A new kind of definition evaluation function of image[J].Yiqiyibiao Yonghu, 2008, 15(6): 84-86. (in Chinese with an English abstract)
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出版历程
  • 刊出日期:  2012-03-14

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