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...础术语] 光学传递函数(optical transfer function,OTF)vkP影像园XCTMR.com 光学传递函数是以空间频率(spatial frequency)为变量的函数。单位空间距离内完成周期性变化次数为空间周期性变化函数的频率，称为空间频率。
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spatial frequency column 空间频率柱
spatial frequency spectrum 空间频谱 ; 空间频率谱
spatial frequency domain 空间频率域
spatial frequency multiplexing 空间频率倍增 ; 空间频率多路法
reduced spatial frequency 约化空间频率
spatial frequency discrimination 空间频率鋻别 ; 空间频率鉴别
spatial frequency filtering 空间频率的滤波 ; 空间频率滤波
Spatial Frequency Processing 空间频率处理
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空间频率 - 引用次数：32
Using the spatial frequency characteristics of HVS, appropriate areas are selected for watermark embedding. And each image sub-block which has different texture characteristic is embedded by different strength.
该算法利用HVS的空间频率特性,选择合适的嵌入区域嵌入水印,并且对于具有不同纹理特性的区域采用不同的嵌入强度,保证了水印的不可感知性。
参考来源 - 数字图像水印算法研究 -
空间频率 - 引用次数：26
The system is with a broad spatial frequency and focus ranges.
本系统测量的空间频率范围和焦距范围都比较大。
参考来源 - 基于CMOS的调制传递函数测试系统的研究 -
空间频率空间频率
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空间频率
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空间频率
·2,447,543篇论文数据，部分数据来源于NoteExpress
Spatial frequency
- abstract: In mathematics, physics, and engineering, spatial frequency is a characteristic of any structure that is periodic across position in space. The spatial frequency is a measure of how often sinusoidal components (as determined by the Fourier transform) of the structure repeat per unit of distance.
以上来源于: WordNet
柯林斯英汉双解大词典
spatial frequency
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1.
N the measure of fine detail in an optical image in terms of cycles per millimetre 空间频率 [television]
双语例句
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In this paper, the DOA estimation is implemented by spatial frequency spectrum analysis.
本文从空间频谱分析的角度来实现这一估计。
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The spatial frequency ratio which could reflect regional similarity among images was defined.
②定义了能够反映图像之间区域相似程度的空间频率比概念。
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A new multi-focus image fusion method using spatial frequency (SF) and morphological operators is proposed.
本文提出了一种新型的基于空间频率和数学形态学算子的多聚焦图像融合算法。
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