如果模式空间的维数较大，那么不仅会造成计算上的困难，而且由于不少变量之间往往相关程度高，会造成混淆和不确定性，所以需进行特征选择。
If the dimension of pattern space is too big, it would result in the difficulty on calculation, and confusing with the indetermination because of high correlation of many variables.
然后，通过分形维数计算车辆的纹理特征，排除非车辆区域。
Second, the no-vehicle regions are filtered by texture feature of AOI based on DBC.
利用分形学方法，计算图像的分维数，然后比较其分形特征。
Using fractal method, the fractal dimensions of these images are calculated to compare their fractal characteristics.
计算机犯罪具有智能性、隐蔽性、超时空性、严重的危害性、犯罪黑数的高值化、诉讼的困难性等特征。
Computer crime has some features, such as high-intelligence, concealment, time-space cross, seriousness, high damage, difficulty of accusation etc.
通过分析木材试样的扫描电镜照片，研究了木材横纹剖面的多孔结构特征，采用盒维数法计算了其分形维数。
The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.
首先通过计算原始图像和特征灰度图像的分形维数实现第一次的粗分类提取，然后采用多重分形奇异谱方法进一步完成了细分。
At first, the fractal dimension is extracted from the original image and special gray image for the rough classification, and then the multi-fractal dimension is used for further classification.
计算结果表明，冲击射流所形成的脉动壁压场可用正交分解进行描述，其特征谱函数随阶数的增加而迅速衰减，对谱密度函数进行低阶近似也非常有效。
The results show that the eigen spectral functions declined with the increasing of order rapidly. The reconstruction of spectral density function shows that low order approximation is very efficient.
研究了混沌与分形的特征参数?关联维数的计算方法和参数的选择。
The calculation of chaos and fractal characteristic parameter, the correlation, is studied.
采用计算分形维数的方法，对黄土丘陵区典型草原带土壤团聚体的分形特征及其对植被恢复的响应进行研究。
The characteristics of soil aggregates fractal dimension and its responses to vegetation rehabilitation were studied in the Hilly-gully region of Loess Plateau.
目前计算分数维广泛采用的方法是盒维数法。但对于灰度图像而言，盒维数计算的结果太粗略以致于很难将它作为进行图像分析的特征。
The popular method for fractal dimension estimation is box-counting method, but as to gray level images, the results are so coarse that they could hardly be used as the feature for image analysis.
该算法和传统色彩量化算法相比，降低了特征向量的维数，计算量小，受光照强度影响较小，提高了检索的性能。
Then we train SVM classifier using visual features such as color, texture, and shape. Experimental results show that this approach can improve precision and recall effectively.
根据汽轮机故障的分形特征，采用分形盒维数方法进行了不同故障试验数据的分形盒维数研究计算。
Using box counting dimension method the different type of turbine fault with fractal characteristic is numerically researched.
开发设计了分形维数计算软件(FWJS)，为烧结矿的微观组元分形特征的处理提供有效帮助。
Computing software on fractal dimension (FWJS) has been designed and developed. It provides help in dealing with fractal characteristics of micro components.
该方法可以有效地降低特征维数，降低了计算量，并且能够增大不同类别的特征间的距离，有助于实现更好的分类结果。
This method can reduce dimension of the feature and calculated amount, and besides it can increase the distance between the feature, this all contribute to a better classification result.
研究了混沌与分形的特征参数?关联维数的计算方法和参数的选择。
These arithmetics are applied to recognise information of erode features in coating material and compute erode feature parameter of coating material.
通过选择合适的嵌入维数计算出的关联维数能够反映系统的真实特性，所以关联维数可以作为削片机检测的一个特征参量。
By choosing suitable insertion dimensions, the correlation dimensions can reflect the real dynamic characteristics of the system and correlation dimensions cou...
通过选择合适的嵌入维数计算出的关联维数能够反映系统的真实特性，所以关联维数可以作为削片机检测的一个特征参量。
By choosing suitable insertion dimensions, the correlation dimensions can reflect the real dynamic characteristics of the system and correlation dimensions cou...
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