CAJ | 학술논문

针对气象计量自动化温度检定系统中图像噪声大、对比度不够等问题，在采用图像预处理技术的基础上，提出一种同态滤波的对比度受限自适应图像预处理方法。尝试中值滤波对红外图像进行去噪，保证噪声不被增强的前提下，利用同态滤波的原理，对图像细节进行增强。但同态滤波依然存在图像特征点与非特征点在图像质量不高的情况下容易混淆的问题，对此采用限制对比度自适应直方图均衡的方法进一步调整图像的动态范围。通过仿真实验对此方法进行验证，验证了所提出方法的有效性。
침대기상계량자동화온도검정계통중도상조성대、대비도불구등문제，재채용도상예처리기술적기출상，제출일충동태려파적대비도수한자괄응도상예처리방법。상시중치려파대홍외도상진행거조，보증조성불피증강적전제하，이용동태려파적원리，대도상세절진행증강。단동태려파의연존재도상특정점여비특정점재도상질량불고적정황하용역혼효적문제，대차채용한제대비도자괄응직방도균형적방법진일보조정도상적동태범위。통과방진실험대차방법진행험증，험증료소제출방법적유효성。
Automation temperature calibration system based on meteorological measurement issues such as big noise, low contrast in the image, homomorphic filtering is proposed for contrast limited adaptive image preprocessing method on the basis of the image preprocessing technology. Try median filter for infrared image denoising, and use the principle of homomorphic filtering to enhance image details based on the premise that the noise would not be enhanced. However feature points and non-feature points are very confusing when the image is very poor quality in the method of homomorphic filtering, so the method of equalling limited contrast adaptive histogram is used to adjust the dynamic range of the image. The simulation results verify the feasibility of the method.