查询词典 sampling method

Three point registrations and ICP (Iterative Closest Point Algorithm) algorithm are used to register for multi-view data. The angle-and-chord's algorithm is advanced which is based on chordal deviation algorithm for data sampling. The method is proved to be effective and right by some examples.

采用基于参考点的对齐算法和ICP算法实现多视点云的对齐，在弦高差方法的基础上提出一种弦高角度法实现点云数据的精简处理，完成数据精简，实例应用表明所提方法精简效果好，数据的压缩效率高。

Data preprocessing refers to the process of polygonization, smoothing, decimation and registration. The flow and main steps of data preprocessing are described here. Several specific cases, for example the sampling method based on chordal deviation, the feature based registration, are discussed.

本文研究和讨论了点云预处理的基本流程和主要步骤，研究点云光顺的高斯滤波，中值滤波和平均滤波方法、点云精简的弦高差算法和多视点云特征对齐的方法。

Furthermore, using Monte Carlo sampling to generate an expanded training set with a sufficiently large number of cleavable octapeptides significantly reduced the inaccuracy caused by arbitrarily assigning the occurrence frequencies for some low-abundance residues, as treated in the h function method.

进而，使用Monte Carlo采样生成一个可断裂十肽的扩展为大数目试测时，明显地降低了使用h功能法处理时由某些少数残基引发的出现频度不对称性。

The system uses a special acoustic emission sensors, combined with the DSP card as a dedicated hardware platform, through UBS2.0 extended to PC, In the environment of the Windows operating system ,using software programming method to configurate USB 2.0 bus ,then to operate the hard platform, Achieved a high sampling rate data acquisition system of Cavitation signal.

该系统采用特殊的声发射传感器，结合以DSP为核心的预处理卡作为专用硬件平台，通过UBS2.0扩展到上位机上，在视窗操作系统环境下使用软件编程的方法，以微机作为控制单元经USB2.0总线对硬件平台进行配置和操作，实现了对气蚀状态信号的高采样率的数据采集。

Firstly the sampling convolutive mixture signals are reseted for matching instantaneous mixture model, then considering non-stationarity of the sources, space whitening and joint block-diagonalization method is exploited to obtain the original signals.

该算法先将采集到的卷积混合信号进行重排，使之满足重新定义向量后的瞬时混合模型特征，然后考虑到信号的非平稳特性，采用空间白化和联合近似块对角化方法分离出源信号。

The discrete mathematical models of the roundness and cylindricity EST are established; the mathematical models of the generating line straightness, axis straightness, coaxality, circular run—out and total run—out error of the revolution workpiece are put forward and established first based on the EST; the method about how to sample and to process sampling data are given when these models are applied to measure workpleces.

其主要内容是：针对长期以来国内对回转误差运动的有关定义的争论，对回转误差运动的本质进行了讨论，进一步明确了静心与静轴，动心与动轴的概念，并对此进行了数学推导，给出了相应的数学模型；统一了&平动说&和&瞬心说&关于回转轴线的定义，指出了两种学说各自的力学基础和它们的一致性。

According to the principle that the moss can monitor the sulfur dioxide, the funaria hygrometrica is used in Pollution monitoring and the conditions of sulfur dioxide pollution are proposed by using five-point sampling method on funaria hygrometrica

根据苔藓植物监测二氧化硫原理，利用盆栽葫芦藓对大气污染进行定位定时监测，采用五点取样法对受害的葫芦藓植株进行统计，得出二氧化硫的污染程度和危害。

The six groups classified by cluster analysis of SSR markers is consistent with the available pedigree and the result of combining ability. So it is feasible to analyze the genetic diversity of maize population by SSR markers and to distinguish heterotic group by method of mixed sampling.

6个玉米群体的聚类结果与系谱来源和田间配合力测定结果基本一致，说明，用若干单株混合取样分析玉米群体SSR的遗传多样性，进而对不同玉米群体划分杂种优势类群是可行的。

Non-invasive sampling is a useful tool for genetic analysis of endangered species,but it is often inapplicable due to the low quality and quantity of DNA obtained.In order to explore a method for extracting DNA from specimen of bird,we tried to extract DNA from dried skin of birds.We extracted total DNA of the koklass specimens successfully.

20世纪80年代以来，由于PCR技术的广泛应用，已经能对极少量遗传物质进行检测，由此产生了一类新的取样方法——非损伤性取样[1]，即在不伤害或触及动物的前提下收集脱落的毛发、粪便、口腔脱落细胞、陈旧皮张等作为分析样品，进行遗传学分析。

Studies the high precision estimation methods of echo frequency, proposes a simplified TLS-ESPRIT method for frequency estimation based on uniform sampling data. For moving platform, such as torpedo, proposes a time fusion algorithm for target status estimation based on multicycle data of single sensor.

c。深入研究了回波信号的高精度频率估计技术，提出了一种基于均匀采样数据的TLS-ESPRIT频率估计算法；针对运动平台，提出了一种单传感器多测量周期目标状态估计的时间融合算法；以炸点预测为例构造了相应的状态模型及算法，计算机仿真验证了融合算法的有效性。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样