http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
편광각도에 따른 CMOS 이미지 센서의 Sun Glint 영향성 분석
유연덕(Yeondeok Yoo),김홍락(Hong-Rak Kim),박진호(Jin-Ho Park),박성현(Sunghyun Park),강지안(Jian Kang) 한국해군과학기술학회 2023 Journal of the KNST Vol.6 No.3
This study analyzed the Sun Glint Effect of CMOS Image Sensor by Polarization Angles. First, when the polarization angle increased by 15° from 0° to 165°, each angles was compared by the number of sun glints. Standard Gray value was defined for the number of sun glint comparison. Then, the relationship between image average Gray value and Sun glint by polarization angles was analyzed. The polarization angle showed the smallest average number of sun glints in 500 frames at 60° - 75°. average number of sun glints in 500 frames decreased by 63.62 % for LPVIS100 and 79.03 % for #47-216 at 75° compared to 0°.
동 · 하절기 해상 환경에서의 적외선 카메라 탐지거리 예측에 관한 연구
박진호(Jin-Ho Park),박성현(Sunghyun Park),유연덕(Yeondeok Yoo),김홍락(Hong-Rak Kim) 한국해군과학기술학회 2023 Journal of the KNST Vol.6 No.3
Infrared signals are absorbed, scattered and transmitted by the atmosphere, there are wavelength regions where transmission is high. These regions are referred to as “atmospheric windows”. Infrared cameras are being developed depending on the atmospheric windows, The performance of infrared cameras differ under prevailing atmospheric conditions such as ambient temperature, relative humidity, target signature, target to background temperature difference and distance from target. In this paper, we analysis the detection ranges of the MWIR and LWIR bands in Summer and Winter Maritime Environments, which are greatly affected by atmospheric conditions.
효율적인 Thermal Noise Filter 설계 및 분석
박성현(Sunghyun Park),박진호(Jin-Ho Park),김홍락(Hong-Rak Kim),유연덕(Yeondeok Yoo),강지안(Jian Kang) 한국해군과학기술학회 2023 Journal of the KNST Vol.6 No.3
In this study, we would like to confirm the effect of the Mean Filter in image process. First, we made a test about the effect of mean filter on general Kernal and the processing time. As a result of analysis, the same result as the theory was obtained, but result of image has different pixel calculation and image delay according to the Kernal size. Additionally, a method for minimizing image delay was studied and differences from mean filter for actual images.