Research on infrared image reconstruction simulation with equal row frequency sampling 等行频采样方式下的红外图像帧重建仿真研究
Typically caused by distortions to the frequency components below the horizontal line frequency 它沿水平方向逐步扩展,通常是由低于行频的频率畸变造成的。
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 道旁过者问行人,行人但云点行频或从十五北防河,便至四十西营田。
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 本文从计算机视频电磁泄漏和数字滤波器两方面的基本理论出发,详细论述了计算机视频信息电磁泄漏的原理及特点,指出视频泄漏信息的频谱是以行频为周期的谱线;分析了重加滤波器和梳状滤波器的性能;分析了视频泄漏信息截获的条件;推导出稳定截获视频泄漏信息需要对同步信号的精度控制在皮秒级;论述了清晰再现对接收机和数据采集卡的技术要求。
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研究了数字视频结构变换的四种技术:去隔行技术,变频技术,行频转换技术,宽高比变换技术。实验验证了大量的相关算法,其中基于运动估计的运动补偿结构转换方法,清晰度和流畅度得到了很大的提高。
行: go频: frequent(水平)行频: horizontal line frequency行频,行率: line rate行频率: line frequency行频器: line divider半行频率: half-line frequency扫描行频: scanning line frequency行频测量: line frequency行频调整: horizontal hold control行频放大器: horizontal-frequency amplifier行频分量: line frequency components行频分频器: horizontal frequency divider行频偏移: line frequency deviation行频振荡器: line frequency generator行频周期: line period运行频率: running frequency双行频振荡器: twice horizontal frequency oscillator行频波型畸变: line time waveform distortion行频补偿信号: line tilt行频梯形失真: line keystone行频遮没脉冲: line-freqency blanking pulse牵行频率自动跟踪: lock水平扫描频率,行频: hsf horizontal scanning frequency行频梯形补偿波形: line keystone waveform