background signal suppression

基本解釋

In order to evaluate results of pretreatment, two definitions of signal-to-noise ratio and background suppression factor were given.
爲(wèi)了評價預(yù)処理結(jié)果，定義了兩個評價蓡數(shù)——信噪比和背景抑制因子。
Current-mode background suppression circuit eliminates background current. Logarithmical signal conversion from current to voltage is implemented by the adaptive photoreceptor.
首先，經(jīng)電流模背景抑制電路消除背景電流後的紅外信號經(jīng)自適應(yīng)光接收器實現(xiàn)電流到電壓的對數(shù)轉(zhuǎn)換；
The infrared images of low signal-to-noise ratio(SNR)are analyzed according to the characteristics of infrared images. A preprocessing method based on background suppression is proposed.
根據(jù)紅外圖像成像的特點，對低信噪比紅外圖像進行了分析，提出了基於背景抑制的預(yù)処理方法；