point-spread function psf

基本解釋

Point-spread function(PSF) plays a key role in image restoration. As a result, prior knowledge and posteriori estimation of PSF is usually used to restore image.
在圖像恢復(fù)技術(shù)中，點擴展函數(shù)（PSF）是影響圖像恢復(fù)結(jié)果的關(guān)鍵因素，所以常常利用先驗知識和后驗判斷方法估計PSF函數(shù)來恢復(fù)圖像。
For the conventional channel equalization techniques, the channel point-spread function (PSF) must be determined firstly, but it is almost impossible to obtain the PSF in practice.
盲均衡技術(shù)實際求解比較困難，一般信道均衡使用傳統(tǒng)均衡技術(shù)，因而必須首先知道點擴展函數(shù)，但實際條件下點擴展函數(shù)不可能知道。
The primary difficulty with blind image restoration is insufficient information. This calls for proper incorporation of apriori knowledge about the image and the point-spread function(PSF).
盲圖像恢復(fù)的主要困難是信息不足，而為了恢復(fù)圖像和確定點擴散函數(shù)需要適當?shù)南闰炛R。