- 黑角，亦可稱暗角
- 漸暈
- 暈邁玻璃法
- 暈飾玻璃法
- 暈影
- 照片四周發(fā)虛
- 周邊暗角
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vignetting中文什么意思
例句與用法
- Anti vignetting effect
防漸暈效應(yīng) - Vignetting can occur due to the altered ray path , when the eyepiece ' s lenses are not large enough in diameter to allow all the rays to make it through
裝飾圖案可以發(fā)生是由于蝕變射線路徑，當(dāng)目鏡的鏡頭是不是足夠大的直徑，讓所有的光線，使之通過。 - For example , the geometric effect and vignetting are simulated with the synthetic method in which they are modeled with ray tracing and then simulated with pixel - based processing . the effects of detector noise on imaging are simulated with the three - dimension model . the theory of pixel transfer function is extended and developed , and microscanned images of four patterns are simulated with good results
本文具有如下幾個突出特點：用光線追跡法分析建模，而用基于象素處理的綜合方法，模擬了光學(xué)系統(tǒng)中的幾何效應(yīng)和漸暈現(xiàn)象；利用三維噪聲模型，模擬了探測器噪聲對圖像質(zhì)量的影響；對象素傳遞函數(shù)理論進(jìn)行了擴(kuò)展和延伸，給出四種工作模式的微掃描成像系統(tǒng)的象素傳遞函數(shù)的具體數(shù)學(xué)表達(dá)式，并利用這些表達(dá)式模擬了探測器的空間效應(yīng)和微掃描成像的圖像效果。 - On the base of studying imaging theory of lens , the imaging theory of laser confocal scanning microscopy was analyzed in detail in this paper , and the advancement of that the optical fiber was applied to the system was described ; on the base of completed the demonstration for whole project , the experiment scheme was designed ; the relationship between the main parameters of key devices and the resolution was deduced , and the requirements of coupling efficiency and vignetting effects to optical system was analyzed ; the design of optical system and the planar scanning controlling circuit was completed ; a new method was put forward to resolved the inherent non - liner scanning problem of the galvanometer scanner by using software liner controlling in circuit design , and the perfect planar scanning was realized ; at last the low noise , high multiple and non - distortion amplify circuit of photoelectric detector was completed
本文在透鏡成像理論的基礎(chǔ)上，系統(tǒng)、深入地分析了共焦掃描顯微成像的機(jī)理，論述了應(yīng)用單模光纖的激光共焦掃描顯微成像系統(tǒng)的優(yōu)點；進(jìn)行了總體方案的論證，并設(shè)計確定了單模光纖激光共焦掃描顯微成像系統(tǒng)的總體方案；從理論上推導(dǎo)分析了分辨率要求與試驗系統(tǒng)中相關(guān)器件主要參數(shù)之間的關(guān)系，分析了系統(tǒng)耦合效率和漸暈現(xiàn)象對光學(xué)系統(tǒng)的設(shè)計要求；完成了方案中光學(xué)系統(tǒng)和二維掃描控制電路的設(shè)計，并在電路設(shè)計中采用了用軟件解決檢流計式光學(xué)掃描器(振鏡)非線性問題的新方法，能夠?qū)崿F(xiàn)較為理想的二維模擬掃描；完成了高增益、低噪聲和低失真的探測接收系統(tǒng)的設(shè)計和調(diào)試。