CAJ | 학술논문

夜视目标探测现已广泛应用于工业、交通、海洋探测、视频监控等多个领域，采用LED阵列为光源，降低成本的同时，也保证了发光强度。然而，由于夜视成像受大气湍流、吸收和散射等环境的影响以及成像设备的限制，图像质量受到严重的退化影响。因此，针对LED夜视，通过量化LED阵列光束在夜间大气中的传输，及大气湍流和气溶胶对成像的影响，计算得到成像过程的调制传递函数（M T F），以传输退化模型的点扩散函数作为先验知识，结合半盲图像复原法，对目标图像进行处理，提高LED夜视成像的图像质量。并将该方法与传统盲复原方法进行比较，验证了该方法的有效性，图像质量得到了明显改善。
야시목표탐측현이엄범응용우공업、교통、해양탐측、시빈감공등다개영역，채용LED진렬위광원，강저성본적동시，야보증료발광강도。연이，유우야시성상수대기단류、흡수화산사등배경적영향이급성상설비적한제，도상질량수도엄중적퇴화영향。인차，침대LED야시，통과양화LED진렬광속재야간대기중적전수，급대기단류화기용효대성상적영향，계산득도성상과정적조제전체함수（M T F），이전수퇴화모형적점확산함수작위선험지식，결합반맹도상복원법，대목표도상진행처리，제고LED야시성상적도상질량。병장해방법여전통맹복원방법진행비교，험증료해방법적유효성，도상질량득도료명현개선。
The night vision detection has been widely used in many fields, such as industry, transportation, ocean exploration, video monitoring and so on. The light source of LED array helps lower costs, in the meantime ensures the emission intensity. However, due to the influence of atmospheric turbulence, absorption and scattering, and the limitation of imaging equipment, the image quality is severely degraded. Therefore, aim at LED night vision, through the quantization of LED array light beam transmitting in the night air, and the influence of atmospheric turbulence and aerosol, the modulation transfer function (MTF) is calculated. Using the point spread function of the degradation model as a priori knowledge, combined with the semi blind image restoration method, the target image is processed to improve the image quality of LED night vision imaging. Compared with the traditional blind restoration method, the effectiveness of the proposed method is verified, and the image quality is improved obviously.