exponential lowpass filtering [电子] 指数低通滤波器
frequency-domain lowpass filtering methods [电子] 频率域低通滤波法
FFT lowpass filtering FFT低通滤波
Spatial Lowpass Filtering 空域低通滤波
The selection of a proper place can not only avoid obvious distortion of watermarked image, but also resist lossy image compression and lowpass filtering.
选择的嵌入方案即适当的位置既不会使水印图像产生明显失真,又可以抵抗图像压缩和低通滤波。
参考来源 - 一种傅里叶域图像数字水印方案的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Multiresolution support for lowpass filtering is introduced according to different property of wavelet transform for signal and noisy at different scale.
依据信号与噪声的小波变换在不同分辨率下呈现不同特性的特点，提出了多分辨率支集图像低通滤波方法。
The digital filtering includes lowpass filtering, polarization filtering, frequency weighting filtering, correlation filtering and superposition process, etc.
数字滤波部分包括：低通滤波、偏振滤波、频率加强滤波、相关滤波及叠加处理等。
One of the most popular approaches to extract the gravity field information from the much noisy measurement that observed by airborne gravimeter is lowpass filtering.
从含有大量噪声的航空重力仪测量值中提取重力场信息，最常用的方法是使用低通滤波器。
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