查询词典 centroid

Animal's welfare can be feed back from their vocalism. We had some experiments to get 35 days old chicken's vocalization in different environment, including normal environment、 light off environment and people's disturbing environment. On the base of Mel Frequency Cepstral Coefficient, We introduction a new algorithm for feature extraction---Subband Mel Spectrum Centroid. We used support vector machine classification model to evaluate the performance of using different sound parameters.

本文通过研究35日龄海兰褐蛋鸡在正常状态、光照与人为干扰等应激下发声信息的变化特征，提出基于子带梅尔频谱质心的优化特征参数，并通过建立支持向量机模型，比较了采用优化特征参数与梅尔频标倒谱系数及其一阶、二阶导数组成的特征参数（MFCC_39）在识别不同应激中的应用效果。

Used squared eancroid method for CCD image subdivided locating,discussed on squared cancroid method,and compared it with traditional centroid method, Gauss curvefitting method , and polynomial interpolation method.

介绍了激光三角测距传感器的基本工作原理和激光光斑成像噪声处理的主要方法，将平方加权质心法应用于激光在CCD中成像的细分定位，并与传统质心法、多项式插值法和高斯曲线拟合法进行了较为系统的比较；通过实验表明，平方加权质心法是一种较为理想的细分定位方法，不仅简单、易于实现，而且具有更高的定位精度以及抗噪声的能力。

Used squared cancroid method for CCD image subdivided locating, discussed on squared cancroid method.and compared it with traditional centroid method, Gauss curvefitting method, and polynomial interpolation method.

本文介绍了激光三角测距传感器的基本工作原理和激光光斑成像噪声处理的主要方法，将平方加权质心法应用于激光在CCD中成像的细分定位，并与传统质心法、多项式插值法和高斯曲线拟合法进行了较为系统的比较。

The centroid and centroidal deviation of bullets are important design parameters of bullets.

弹丸质偏心是弹丸性能的重要设计参数。

The results show that the Yager's ranking method is better than the centroid method when the fuzzy numbers of the input factors are dissymmetric. So the solving procedure of the Yager's ranking method is more suitable for this kind of problem.

结果显示，当要素价格为非对称的模糊数值时，Yager 排序法所得到的结果会优於重心法所求解之结果；故Yager 排序法的求解程序为此类问题的较佳求解方法。

According to the extraction of cells figures, based on the edge detection the paper extracts 9 measurement parameters such as centroid, area, area rate of karyon and cytoplasm, optic density, cells and karyon shape factor according to the morphological knowledge and the medical knowledge of pathology expert.

在细胞特征提取方面，在边缘检测的基础上依据形态学知识和病理学专家的医学知识提取了诸如周长、面积、核质比、光密度、细胞及细胞核形状因子等9个度量参数。

Star skeleton is a fast skeletonization technique by connecting from centroid of target object to contour extremes.

星状骨架是一种藉由连结物件中心到物件轮廓突出点的快速骨架技巧。

To control the base design of power machine using numeric,taking the blower as an example,the key problem affected by power machine load,base and subgrade-the off-center value between centroid of control load and poid of foundation subface was analyzed.The relationship of calculating maximum amplitude of machine foundation and permitting amplitude was discussed.

以风机为例，对动力机器荷载、基础和地基共同作用的关键问题—控制荷载重心与基础底面形心的偏心值进行分析，并对机器基础最大振幅的求解与允许振幅的关系进行了论述，以便对动力机器基础的设计能从数值上加以控制。

Targets are extracted from the images according to their size, shape, intensity, etc. An improved method to identify every coded target is proposed. The gray scale centroid algorithm is applied to get subpixel locations of both uncoded and coded targets.

该算法首先根据标记点的尺寸、形状、灰度变化及位置分布等特征提取目标；然后利用非编码元与编码元的不同形状与灰度特征，提出一种改进的编码元自动身份识别方法，同时实现非编码元与编码元的分类；最后采用质心法进行标记点的精确定位，达到亚像素精度。

Bolt capacities and orientations are added vectorially,and are included in the Safety Factor calculation as a single, equivalent force passing through the centroid of the wedge.

锚杆锚固容许力作为通过型心的单一等效力反映在安全系数中，主动和被动的锚杆模型均能被模拟。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。