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http://dx.doi.org/10.5392/JKCA.2020.20.10.001

CMOS Image Automatic Exposure System With Real-time and Robustness Style for the Journal of Korean Contents  

Choi, Wonseok (LIG넥스원)
Kim, HeeSu (LIG넥스원)
Kim, Jaehyun (LIG넥스원)
Cho, Youngki (LIG넥스원)
Choi, Sungho (국방과학연구소)
Lee, Yongseon (국방과학연구소)
Publication Information
The Journal of the Korea Contents Association / v.20, no.10, 2020 , pp. 1-13 More about this Journal
Abstract
There are many factors that influence the image quality of CMOS camera images, among which the image exposure time is an important factor. If the image exposure time is long, the entire image on the screen becomes brighter. If the exposure time is shorter, the entire image becomes darker. When photographing a still image, real time is not required because the automatic exposure system is given sufficient time to obtain an appropriate exposure time. However, if the surroundings and environment change rapidly like the black box of a driving car, the exposure time should be applied in response to real time. To this end, a robust automatic exposure system for real-time performance and ambient light environment is required. An automatic exposure system that has real-time capability and is robust against the ambient light environment is required. we designed a real-time control sysem capable of parallel operation processing through the design of an embedded system using zynq's logic and ARM core, and developed a real-time CMOS automatic exposure system that is robust to noise and converges to a desired target value within 66 ms through PID control.
Keywords
Auto Exposure; Real Time; ZYNQ; PID Control;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
연도 인용수 순위
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