Examples show that this method can decompose the image frequency for gradually reduced N-and IMF and the remainder.
实例表明,此方法能较好的将图像分解为频率逐渐减小的N个IMF和余项的和。
When it is realized by using the analog devices, the conventional quadrature coherent detector may result in the large image frequency errors.
传统的正交相干检波器由模拟器件构成,存在较大的镜频误差。
The main structure of the mixer adopts two symmetrical single-balanced mixers, with phase-shifting of the up and down path signals to eliminate the image frequency.
混频器主结构采用两只对称的单平衡混频器组合,通过上下两路信号移相来达到消除镜频的目的。
I/Q imbalance problem causes finite rejection in the image frequency band, and the image interference will alias into the desired signal, severe distortion will occur.
不平衡问题将会造成接收机的镜像干扰排斥能力大幅降低,镜像干扰将使得欲接收的信号严重失真。
Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.
然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏,从而达到应用的目的。
Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.
其思路是将信号先通过单边带调制,将较低频率调制到需要的频率范围;然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏,从而达到应用的目的。
The multiresolution structure of wavelet is used to construct the image frequency components., which has better image fidelity preservation and robustness than spatial domain based techniques.
本算法利用小波变换的多分辨率特性来进行图象的小波域分解,这样可以获得更好的图象保真度并且比在空域中的水印嵌入算法更稳健。
A portrait type that appeared with relentless frequency in eighteenth-century England is the familiar image of a gentleman poised with one hand inside his partially unbuttoned waistcoat.
18世纪英国出现频率极高的一种肖像类型,是人们熟悉的绅士单手插在部分没有扣子的马甲里的形象。
Depending upon how radical your idea is, you may or may not elicit a sympathetic response in those around you (determining the frequency at which the fractal shape appears in the overall image).
取决于你的想法有多么激进,你也许能够,也许不能够在你周围的人群中得到同情的反应(决定了这个分形在整体图像中出现的频率)。
Objective: to study the effects of respiratory movement frequency and scanning time on the image results in the treatment of lung cancer by stereotactic radiotherapy.
目的:研究立体定向放射治疗肺癌中呼吸运动频率与图像扫描时间对靶体积定位成像结果的影响。
This paper introduces the image block segmentation into the multi-focus image fusion, and USES wavelet spatial frequency as the multi-focus image clarity indicator.
本文将图像块分割引入多聚焦图像融合中,以小波空间频率作为多聚焦图像的清晰度指标。
The traditional low-pass filter method can restrain the high frequency part and decrease noise but may destroy image detail, and other methods also have other defects.
传统的低通滤波方法将图像的高频部分滤除,虽然能达到降低噪声的效果,但会破坏图像的细节。
An improving noise eliminated difference template based on the analysis of object and background gray value also has been developed to eliminate the low frequency noise in image.
对图像中的低频噪声,基于对图像中目标与背景灰度值特点的分析,提出了改进的差分去噪声模板。
The significance of this is that you usually only need bokeh shapes in areas of high frequency (ie, cluttered or "noisy" areas of image) since they are otherwise nearly invisible.
该值的重要意义在于你通常只想场景中一些高频率地方(即图片中的噪声区域)产生散景效果,否则他们将几乎无法看见。
In image denoising, traditional low-pass methods can suppress high frequency noise, at the same time they can destroy image details unsatisfactory.
在图像滤波方面,传统的低通滤波方法在滤除图像高频成分的同时,破坏了图像的某些细节。
High-performance data acquisition is needed in some high speed and high precision measurements when signal measurements, image manipulation and audio frequency signal process are taken.
在信号测量、图像处理、音频信号处理等一些高速、高精度的测量中,都需要进行高性能数据采集。
For the image high-frequency part, use the new evaluation factor - wavelet neighborhood information to choose the ultimate wavelet high-frequency coefficients.
使用由方差和平均梯度构造的新的评价因子——小波邻域信息量作为融合规则选取小波高频系数。
And it USES the texture, frequency and direction of image to choose the embedding position and intensity according to human visual properties.
根据人类的视觉特性,由图像的纹理、频率、方向特征自适应地确定嵌入位置与强度。
For the problem of image enhancement, an improved nonlinear extrapolation method in frequency space is proposed.
针对图像增强的问题,提出了一种改进的频域非线性外推方法。
After the research on the image fusion method based on the frequency domain, this paper proposed an improved multi-focus image fusion method based on morphological wavelet.
本文在对基于频率域的图像融合方法研究的基础上,提出了一种改进的基于形态学小波的多聚焦图像融合方法。
One of VQ image coding method used in the low frequency subband-the unbalanced tree-structured VQ is presented in this paper.
文章介绍一种图像低频子带编码的矢量量化方法—非对称树结构矢量量化。
The license plate region is positioned by disposing the high frequency image created by wavelets operationthis arithmetic enhances the position velocity and accuracy.
将分解出的高频图像经过后继处理即可定位出车牌,这种算法不仅提高了车牌定位的速度,而且大大提高了定位的准确率。
Every 90 seconds, the array switches to looking at a different star, or a different frequency range, and a new image is generated.
因为每隔90秒望远镜阵列就会切换观测另外一个星体或者一个不同的频段,一幅新的信息转换成的图像就会显示出来。
Wavelet analysis is widely used in digital signal and image fields because of its good time frequency localization feature, but it doesn't do well in timely processing of long signals.
小波分析有良好的时-频局部化性能,现被广泛应用于数字信号和图像处理等领域,但其在处理有限长信号时的实时性不太理想。
The homogeneity of the sheet is analyzed by image transform, i. e. the spatial domain image is transformed to frequency domain or wavelet domain to obtain the features.
对于纸页的均匀性分析,通过图像变换,将空间域图像变换到频域或小波域进行分析,获取其特征;
Signal is in low frequency, while noise in high frequency and minutia in image is also in this area.
信号主要分布在低频区域,而噪声主要分布在高频区域,同时图像的细节也分布在高频区域。
According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made.
根据光学传递函数、调制度和空间频率视觉及对物象的感知程度,制作TIFF格式透视灰度图。
Modulation of spatial frequency by means of multidimensional holographic modulating board can bring about transformation from object via frequency to image and implement pseudo-color coding.
通过多维全息调制板对空间频率进行调制,完成物-频-像的变换过程,可实现空间假彩色编码。
Meanwhile, some noises are added into frequency bands where it is less visible in order to achieve noise smooth of overall reconstructing image.
同时,在不灵敏频带内(如图象边缘区)引入一定噪声以达到整个恢复图象的噪声平滑。
Meanwhile, some noises are added into frequency bands where it is less visible in order to achieve noise smooth of overall reconstructing image.
同时,在不灵敏频带内(如图象边缘区)引入一定噪声以达到整个恢复图象的噪声平滑。
应用推荐