1) frequency domain low pass filter
频域低通滤波器
1.
The paper presents two kinds of frequency domain low pass filter improving performance on big gradient and complex 3-D shape measurement,according to the requirement of filter frequency response on Fourier Transform Profilometry.
根据傅立叶变换法检测曲面形貌对滤波频率响应的要求,提出两种频域低通滤波器(指数滤波器,矩形余弦低通滤波器),在对具有大梯度和急剧变化细节的物体形面测量方面,有很好滤波性能。
2) video lower pass filter
视频低通滤波器
1.
In the current satellite television receivers, the video processing circuit receives satellite television signals of different systems on the same video lower pass filter and De-emphasis network, which leads to amplitude frequency distortion and signal-to-noise deterioration of the signals.
在目前的卫星电视接收机中,由于视频处理电路大都采用同一视频低通滤波器和去重网络去接收处理不同制式的卫星电视信号,导致了信号的幅频失真和信噪比恶化,影响了图像信号的质量。
3) low frequency bandpass filter
低频带通滤波器
4) low-pass filtering method in frequence domain
频域低通滤波方法
5) frequency-domain lowpass filtering methods
频率域低通滤波法
6) lowpass antialiasing filter
低通去假频滤波器
补充资料：多媒体视频视频信号转换器
一般是指复合端口、Y/C端口、YUV、DV、SDI、S-Video端子、VGA的信号进行互转，主要是模拟与数字信号的互转，DV与YUV分量信号的互转，VGA电脑信号与视频信号的互转等等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条