gamma noise 中文意思是什麼
gamma noise
解釋
伽馬噪聲-
An approach for quality assessment of the filtered images was proposed. after qualitative and quantitative assessment, some conclusions have been drawn : ( 1 ) spatial filters are affected greatly by filtering window size, the size of 5 5 presents best result ; ( 2 ) enhanced frost filter, enhanced lee filter and gamma - map filter smooth the speckle noise well with a small sacrifice of losing texture details and narrow edges, which are better than other popular spatial filters ; ( 3 ) the results show that the proposed filter retains texture and edges well, so more researches are expected
通過對jers - 1sar圖像的各種濾波圖像進行了目視評價和指標比較，得出如下結論: （ 1 ）各種空間濾波器受濾波窗口的影響很大， 5 5大小的濾波窗口濾波效果較好； （ 2 ）對比各種常用的空間濾波器，增強的frost濾波器、增強的lee濾波器和gamma - map濾波器在去噪和紋理、結構特徵保持方面效果最好； （ 3 ）小波濾波方法在保持sar圖像紋理細節方面表現出了很好的優勢，還有待進一步研究。 -
It is more suitable to the practice using qlf to measure quality. this paper discusses the defect of quadratic loss function and studies the models of inverted normal and inverted gamma loss function. we explore the relationship between qlf and signal - to - noise ( sn ), put forward multivariate qlf model based on sn, which overcome the flaw that single - characteristic can not reflect multi - characteristic in practice
本文討論了二次損失函數模型的局限，在此基礎上研究了逆正態、逆伽瑪損失函數模型；探討了質量損失函數與信噪比的關系，提出了基於信噪比的多元質量損失函數模型，克服了單質量屬性不能反映實際中多維質量屬性的質量損失的弊端，實例證明該方法是可行的。
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