光电工程
光電工程
광전공정
OPTO-ELECTRONIC ENGINEERING
2013年
12期
6-12
,共7页
CCD传感器%地面辐射状靶标%地面分辨力%自动检测
CCD傳感器%地麵輻射狀靶標%地麵分辨力%自動檢測
CCD전감기%지면복사상파표%지면분변력%자동검측
CCD sensor%radial targets on the ground%ground resolution%automatic detection
当前大量的遥感成像设备都采用电荷藕合器件(Charge Coupled Device, CCD)传感器作为其感光仪器，而地面分辨力是其非常重要的性能参数。针对各类 CCD 传感器，传统方法是通过人眼观察，然后估计出成像传感器的最小分辨尺寸，从而得到地面分辨力。本文基于地面辐射状靶标在CCD传感器上的成像表现，结合光学原理，提出了一种新的计算机自动检测CCD传感器动态地面分辨力的方法。该方法综合考虑了影响CCD传感器动态成像时，影响地面分辨力的多种因素，弥补了传统人工目视判读的缺陷与不足。并通过不同传感器的影像，验证了这种自动检测方法的可靠性和稳定性。
噹前大量的遙感成像設備都採用電荷藕閤器件(Charge Coupled Device, CCD)傳感器作為其感光儀器，而地麵分辨力是其非常重要的性能參數。針對各類 CCD 傳感器，傳統方法是通過人眼觀察，然後估計齣成像傳感器的最小分辨呎吋，從而得到地麵分辨力。本文基于地麵輻射狀靶標在CCD傳感器上的成像錶現，結閤光學原理，提齣瞭一種新的計算機自動檢測CCD傳感器動態地麵分辨力的方法。該方法綜閤攷慮瞭影響CCD傳感器動態成像時，影響地麵分辨力的多種因素，瀰補瞭傳統人工目視判讀的缺陷與不足。併通過不同傳感器的影像，驗證瞭這種自動檢測方法的可靠性和穩定性。
당전대량적요감성상설비도채용전하우합기건(Charge Coupled Device, CCD)전감기작위기감광의기，이지면분변력시기비상중요적성능삼수。침대각류 CCD 전감기，전통방법시통과인안관찰，연후고계출성상전감기적최소분변척촌，종이득도지면분변력。본문기우지면복사상파표재CCD전감기상적성상표현，결합광학원리，제출료일충신적계산궤자동검측CCD전감기동태지면분변력적방법。해방법종합고필료영향CCD전감기동태성상시，영향지면분변력적다충인소，미보료전통인공목시판독적결함여불족。병통과불동전감기적영상，험증료저충자동검측방법적가고성화은정성。
Currently a large number of remote sensing device use a Charge Coupled Device (CCD) sensor as its photographic equipment, and the ground resolution is one of most important performance parameters of the CCD sensor. For all types of CCD sensor, the tradition method to obtain the ground resolution is implemented through human eyes’ observation. Based on the imaging performance of the ground radial targets in the CCD sensors and combined with optical principle, a new method of automatically detecting the dynamic ground resolution of the CCD sensors was proposed. This new method has considered various factors which influence ground resolution. Besides, it has overcome the shortcoming of the traditional method. The experiment results validate the reliability and stability of this automatic detection method with different remote sensing images.
