Development of a test software for the modulated transfer function of ccd camera Ccd相機(jī)調(diào)制傳遞函數(shù)測(cè)試軟件的研制
Through describing the space sampling process of ccd , the composing factors of modulate transfer function ( mtf ) of ccd integral sampling process are analyzed . meanwhile , an effective method to analyze the mtf of discrete sampling image system is put forward and is used to analyze and compare mtfs of sub - pixel image system and singlechip ccd system . as a result , definitions of ccd optical transfer function ( otf ) and optical mtf are presented and effective methods to measure ccd mtf are brought forward 本文通過(guò)對(duì)ccd器件空間采樣過(guò)程的描述,詳細(xì)分析了ccd積分采樣過(guò)程調(diào)制傳遞函數(shù)的構(gòu)成要素,提出了分析離散采樣成像系統(tǒng)調(diào)制傳遞函數(shù)的有效方法,并用該方法分析比較了亞像元成像系統(tǒng)與單片ccd系統(tǒng)的mtf ,給出了ccd器件光學(xué)傳遞函數(shù)( otf )和光學(xué)調(diào)制傳遞函數(shù)( mtf )的定義,提出了檢測(cè)ccd調(diào)制傳遞函數(shù)有效方法,采用幾種不同測(cè)量方法測(cè)定了tdiccd的調(diào)制傳遞函數(shù),并進(jìn)行了比較分析。