The mask acts as a low frequency spatial filter whose effect is to enhance rendition of fine detail . 掩模就象一個(gè)低頻空間濾波器,其效果是增強(qiáng)細(xì)節(jié)的重現(xiàn)。
Study and design of spatial filter in high power femtosecond laser system 高能飛秒激光系統(tǒng)中空間濾波器的研究和設(shè)計(jì)
Understanding the effects of motion correction and spatial filtering on the outcome of statistical analysis of fmri data 了解移動(dòng)校正及空間濾波對(duì)功能性磁振造影資料統(tǒng)計(jì)分析結(jié)果的影響。
In the facet of pre - transact of ir image , the traditional smooth spatial filter and histogram equalization are analyzed and intruded first 論文在紅外圖像預(yù)處理方面,首先分析了傳統(tǒng)的空間濾波技術(shù),并著重介紹了平滑空間濾波器。
( 6 ) the spatial filter is introduced to avoid the damage from the hot - image . it is indicated by the numerical results that this work is valuable ( 6 )引入了空間濾波器抑制熱像效應(yīng)對(duì)光學(xué)元件造成的破壞,從數(shù)值模擬來看,這種方法是行之有效的。
Two models were given to analyze the characteristics of distributed spatial filtering of bend multimode fiber and the multimode fiber amplifier in this paper 本論文主要工作是提出了用于分析彎曲多模光纖的空間濾波特性的理論模型和存在彎曲損耗時(shí)的光纖放大器等效模型。
Compared with the traditional methods of artifacts elimination , ica , a kind of spatial filter , does not be restricted by the case of spectrum overlapping , and have a good reservation of useful detail signals 此外, ica這種空間濾波器不受信號(hào)頻譜混迭的限制,消噪的同時(shí)能對(duì)有用信號(hào)的細(xì)節(jié)成分做到很好的保留,很大程度上彌補(bǔ)了時(shí)頻域方法的不足。
As analyzing the optical spatial filter and frequency domain filter with wavelet transform , the space variable processing > matched filtering and imagery system are the examples . all of these confirm the feasibility of wavelet transform applied in optical information processing 用小波變換處理光學(xué)信息,主要的是應(yīng)用小波的多分辨特性,小波變換的定義是一相關(guān)運(yùn)算,很容易在光學(xué)系統(tǒng)中實(shí)現(xiàn),這是光學(xué)小波變換的理論依據(jù)。
A temporal - spatial filter is designed for noise removing of clinical eeg signals , the first filtering is temporal filtering using band - pass filter , and the second filtering is spatial filtering with ica - based spatial filter 為了有效去除臨床腦電信號(hào)的噪聲和干擾,設(shè)計(jì)了一種時(shí)空濾波器,分兩個(gè)階段對(duì)腦電信號(hào)進(jìn)行濾波預(yù)處理:第一個(gè)階段是時(shí)域?yàn)V波,用傳統(tǒng)的帶通濾波器實(shí)現(xiàn);第二個(gè)階段是空域?yàn)V波,用基于獨(dú)立分量分析( ica )的空域?yàn)V波器實(shí)現(xiàn)。
Optical spatial filtering is the based operation on oip and the foundation of high - pass , low - pass , band - pass , edge - enhance and feature distinguishing . this simulation experiments system includes special filtering experiments when the input image is one - dimension grating , two - dimension grating or general image 以4f相干光學(xué)成像理論為基礎(chǔ),本仿真實(shí)驗(yàn)系統(tǒng)給出了一維黑白光柵的空間濾波、網(wǎng)格和非周期性結(jié)構(gòu)輸入物的空間濾波等仿真實(shí)驗(yàn)。