Research on infrared image reconstruction simulation with equal row frequency sampling 等行頻采樣方式下的紅外圖像幀重建仿真研究
Typically caused by distortions to the frequency components below the horizontal line frequency 它沿水平方向逐步擴展,通常是由低于行頻的頻率畸變造成的。
The person that pass by the path asks a pedestrian , pedestrian dan yun nods line frequency or prevent a river from 15 north , come 40 on the west battalion cropland 道旁過者問行人,行人但云點行頻或從十五北防河,便至四十西營田。
The second , the main work in the paper is discussed . they are include : the theory and character of electromagnetic leaking from a computer ; the theory of accumulation mean filter and pectination filter ; the analysis of synchronous signal precision , at 10 - 12 second level , for stably intercepting ; the technology requirement of receiver and data acquisition board for clearly displaying the images recovered from the intercepted data 本文從計算機視頻電磁泄漏和數(shù)字濾波器兩方面的基本理論出發(fā),詳細(xì)論述了計算機視頻信息電磁泄漏的原理及特點,指出視頻泄漏信息的頻譜是以行頻為周期的譜線;分析了重加濾波器和梳狀濾波器的性能;分析了視頻泄漏信息截獲的條件;推導(dǎo)出穩(wěn)定截獲視頻泄漏信息需要對同步信號的精度控制在皮秒級;論述了清晰再現(xiàn)對接收機和數(shù)據(jù)采集卡的技術(shù)要求。
Researched four technology of structure conversion about digital video , de - interlaced , frame ratio down or up , row ration down or up , the width and high transforming , implemented lots of corresponding arithmetic of four techniques , motion compensate structure conversion method based on the motion estimating improved the image sequence definition and liquidity degree 4研究了數(shù)字視頻結(jié)構(gòu)變換的四種技術(shù):去隔行技術(shù),變頻技術(shù),行頻轉(zhuǎn)換技術(shù),寬高比變換技術(shù)。實驗驗證了大量的相關(guān)算法,其中基于運動估計的運動補償結(jié)構(gòu)轉(zhuǎn)換方法,清晰度和流暢度得到了很大的提高。