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低灰度
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  low gray
     A novel method and SoC implementation for improving low gray image in AC PDP
     一种新的AC PDP低灰度级图像增强方法及SoC实现
短句来源
     For this purpose, eight fractal dimensin (FD) features are used based on the original image, the high gray level image, the low gray level image, four directional (0°, 45°, 90°, 135°) gradient image and the multi fractal dimension of order two.
     利用原始图像、高灰度图像、低灰度图像、四个方向(0°, 45°, 90°, 135°)的梯度图像及二阶多分维共八个分维数作为特征值;
短句来源
     The research results are as follows:(1) Color balanced algorithm of gray patch , remedies the deficiency of white patch algorithm invalid in analyzing low gray level picture and the defect of gray world algorithm which can only use for picture with abundant of color variation.
     研究内容及成果如下:(1) Gray patch色彩平衡算法,弥补white patch算法分析低灰度图像无效的不足,以及gray world算法只能用于色彩变化丰富图像的缺陷。
短句来源
     Enhancement of Dynamic Low Gray Levels in Color Plasma Display Panel
     彩色等离子体显示器动态低灰度级增强技术
短句来源
     The paper begins with the analysis of drawbacks in the Pal fuzzy edge extraction algorithm, as being monotony in the image enhancement zone, loss of low gray information resulting from image enhancement and a lack of noise restraint treatment in the enhancement process.
     分析了Pal的模糊边缘提取算法的缺陷,即图像增强区域单一、图像增强后造成低灰度信息的损失、没有做抑噪处理。
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  “低灰度”译为未确定词的双语例句
     Simulation results show that CLEAR technique enhances the capability of displaying the image with low grey level, and improves farthest the display quality of the whole image while eliminating the dynamic false contour.
     仿真结果表明,准备期动态修正CLEAR技术在消除动态假轮廓的同时,增强了对低灰度级图像的显示能力,并且最大限度地提高了整幅图像的显示质量.
短句来源
     The experimental results show that with the proposed method plenty of lower level gray can be preserved to obtain more favorable edge detection.
     试验结果表明,该算法能保留大量低灰度信息,可以获得较好的检测效果.
短句来源
     The(experiment) results show that this method can maintain the low grey scale information of the(image.)
     文章最后的实验结果表明该方法能保持图像的低灰度信息。
短句来源
     Aiming to practical purpose of mark image enhancement, through analysing the definition and speeding of the contrast fuzzy enhancement arithmetic (Pal),a fastspeed fuzzy enhancement arithmetic is offered based on simply function and the fuzzy segment operator of contrast ratio to consummate deficiency of Pal.
     针对痕迹图像的增强处理实际需求 ,通过分析 Pal的对比度模糊增强算法的不足 ,给出了一种改进的快速模糊增强算法。 该算法由于采用简化的隶属度函数和分段对比度模糊算子 ,较好地弥补了 Pal算法速度慢和丢失原图像中低灰度值信息的缺陷。
短句来源
     So a gamma correction is introduced to the image sending end to compensate for this nonlinearity.
     为了克服低灰度级图像偏暗的缺点,大多数图像发送系统均采用预补偿办法,对其发出的图像信号作了预γ校正,从而实现了图像信号与图像亮度间的线性变换。
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     Their specific properties are described in some detail: high surface activity and low critical micelle concentration;
     临界胶束浓度;
短句来源
     Biaxial(-)with low birefringence.
     双折射率
短句来源
     Low-resolution Radar Target Recognition Based on Gray-level Map Features
     基于灰度图特征的分辨雷达目标识别
短句来源
     Enhancement of Dynamic Low Gray Levels in Color Plasma Display Panel
     彩色等离子体显示器动态灰度级增强技术
短句来源
     Gray levels of LCD
     液晶显示器灰度的实现
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  low gray
In contrast, the relatively low gray-level values found in stages 5.5, and 1 are not associated with enhanced test corrosion.
      
Figure 1 Examples of the implant and hard bone model, that is, implant has the higher gray level and hard bone has low gray level.
      
Here we use simple thresholding to reduce the higher gray level to low gray level.
      
In normal images, implant has the higher gray level and hard-bone has low gray level.
      
Measurements of low gray-level values have high relative uncertainty due to noise.
      
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A nature texture classification method based on fractal dimension using self similar texture characterization is presented. For this purpose, eight fractal dimensin (FD) features are used based on the original image, the high gray level image, the low gray level image, four directional (0°, 45°, 90°, 135°) gradient image and the multi fractal dimension of order two. The fractal dimension is estimated with the modified box counting method. The texture classification is completed with back propagation (BP)...

A nature texture classification method based on fractal dimension using self similar texture characterization is presented. For this purpose, eight fractal dimensin (FD) features are used based on the original image, the high gray level image, the low gray level image, four directional (0°, 45°, 90°, 135°) gradient image and the multi fractal dimension of order two. The fractal dimension is estimated with the modified box counting method. The texture classification is completed with back propagation (BP) neural network. The results are compared with other techniques. The Wiener filter is used to improve the performance of this method.

提出一种利用分维特征, 即自然纹理的自相似性进行纹理识别的研究。利用原始图像、高灰度图像、低灰度图像、四个方向(0°, 45°, 90°, 135°)的梯度图像及二阶多分维共八个分维数作为特征值; 分维的计算采用改进的盒子计数法(MBCM); 最后利用反向传播(BP)神经网络进行纹理的分类识别。实验结果与其它技术进行了比较, 并提出利用维纳滤波进一步改进分类性能。

The scale space technique introduced by Witkin proposed an edge detection method by smoothing the image step by step. The smoothing process can be described as a traditional heat diffusion equation. In this paper it is assumed that heat diffuses from low temperature position to high temperature position and a new anisotropy reverse heat diffusion equation is obtained. This equation is used to design an image enhancement method (IEM ), and through a suitable anisotropy function the gray value transfers from low...

The scale space technique introduced by Witkin proposed an edge detection method by smoothing the image step by step. The smoothing process can be described as a traditional heat diffusion equation. In this paper it is assumed that heat diffuses from low temperature position to high temperature position and a new anisotropy reverse heat diffusion equation is obtained. This equation is used to design an image enhancement method (IEM ), and through a suitable anisotropy function the gray value transfers from low gray value to high gray value mainly in the edges to be enhanced. The experiment results show that designing IEM through the new heat diffusion equation can make an efficient use of the conclusion of the scale-space technique, and a good enhancement result is obtained.

Witkin等人的尺度空间滤波办法是对原图像一个逐渐平滑的过程,这个过程可以用传统的热传导方程来描述.假设“热量”由低温向高温处流动,导出一个各向异性的反向热传导方程.将它用于图像处理,通过选择合适的各向异性函数,使得在感兴趣的边缘处“热量”由低温向高温处流动,即“灰度”从“低灰度”向“高灰度”流动,以此得到一个适合一类图像的图像锐化算子.实验证明,这种锐化算子的导出方法能够有效利用已有的尺度空间研究成果,基于目的设计合适的图像锐化算子,得到理想的结果.

In this paper, a quick fuzzy approach for image segmentation based on local time-frequency feature is proposed. The hierarchical multiresolution wavelet information combining with the context information of the image extracted from GMRF constitutes feature space of the image, segmentation is implemented via fuzzy partition in the feature space with the QFCM algorithm. The effectiveness and robustness of the approach have been tested by simulations on a wide range of images, especially on images with low object-surrounding...

In this paper, a quick fuzzy approach for image segmentation based on local time-frequency feature is proposed. The hierarchical multiresolution wavelet information combining with the context information of the image extracted from GMRF constitutes feature space of the image, segmentation is implemented via fuzzy partition in the feature space with the QFCM algorithm. The effectiveness and robustness of the approach have been tested by simulations on a wide range of images, especially on images with low object-surrounding contrast and those images with low SNR.\;

对于景物 -背景对比度差且信噪比较低的灰度图像的分割问题 ,提出了一种基于时频域局部特征的快速模糊分割方法。鉴于多分辨小波分析具有良好的揭示图像信号的时频域局部信息的能力 ,在图像的多尺度小波分析的基础上 ,基于高斯 -马尔可夫随机场理论 ,应用统计的方法抽取一组参量 ,这组参量反映了图像的局部特征信息 ,从而构造出图像的特征集。最后利用快速模糊C -均值 (QFCM)聚类方法对特征集进行模糊划分 ,从而完成图像的分割。实验证明 ,该方法具有良好的分割效果 ,且有较强的稳健性。

 
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