1) low frequency sub-band image
低频子带图像
1.
The low frequency sub-band image extracted from the pre-processed SAR image is filtered by Gabor filter.
该方法首先提取预处理后SAR目标图像的低频子带图像,用Gabor滤波器对该子带图像进行滤波,对滤波后各子带图像进行分块,提取所有分块的统计特征作为目标识别特征,最后用支持向量机对该特征进行分类完成目标识别。
2) low requency sub image
低频子图像
3) low frequency sub-band
低频子带
1.
Choosing proper orthogonal wavelet function,the low frequency sub-band was enhanced obviously and the high frequency sub-band was restrained moderately to realize image enhancing via the modulation of information entropy window.
采用信息熵窗小波低频子带分析的方法,目的是对缺乏足够能量的低照度和低对比度图像进行增强。
2.
By analysis on coefficient characteristic after discrete wavelet transform,multiple description coding method based on discrete wavelet transform is proposed,the method generates multiple description bit-stream by restructuring and assigning wavelet coefficients of low frequency sub-band after discrete wavelet transform.
在分析离散小波变换后系数特性的基础上,提出了一种基于离散小波变换的多描述编码方法,它通过将离散小波变换后的低频子带的小波系数进行重组赋值产生多描述码流。
4) low frequency sub-image
低频子图
1.
Motion estimation based on low frequency sub-image;
基于低频子图的运动估计算法
5) Subband Image
子带图像
6) high frequency sub image
高频子图像
补充资料:低频
1.指应用于某一技术领域中的最低频率范围。例如,无线电波段中,将30~300千赫范围内的频率称低频;电子放大电路中,将接近音频(20赫兹~2万赫兹)的频率称为低频。
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