1) error accumulation
误差积累
1.
The problem of the error accumulation,three different kinds of linear size marking form is analysed here.
分析了尺寸公差法标注尺寸的三种形式，它们都存在不同程度的误差积累，在一定条件下采用位置度注法，可以解决尺寸标注中的误差积累问
2.
Image alignment error is classified as type I error and type II error in this paper for the error accumulation and image mismatch of microscopic image mosaicing,and a global image alignment model of image mosaicing is proposed to deal with these two types of error.
针对显微图像拼接中的误匹配和误差积累问题,把图像对准误差划分为第一类误差和第二类误差,并提出了一种新的图像拼接方法。
3.
(1) Study on video mosaic algorithm for 1D scan patternTo overcome the problem of registration error accumulation in traditional registration algorithms, this paper presents a fast and accurate video mosaic approach for 1D scan pattern.
为此,本文分别对摄像机以一维和二维方式扫描时,彩色视频图像快速、准确的拼接方法进行了研究,完成的主要工作如下:(1)摄像机一维方式扫描时视频图像拼接方法研究针对目前算法中易存在的误差积累问题展开研究,提出一种当前帧到全景图像的拼接方法。
2) accumulated error
累积误差
1.
Accumulated error control technique applied in small mass production of piece;
累积误差控制技术在单件小批量生产中的应用
2.
This paper introduces the principle of the 3D Optix laser scanner briefly,discusses the method of improving the data accuracy in single piece measurement and reducing the accumulated error of spliced joint in multi-pieces measurement with an applied example.
简要介绍3D Optix扫描仪的测量原理,并结合一测量实例探讨提高单片点云数据测量精度及减小多片点云数据拼接累积误差的方法。
3.
Firstly,the nonlinear problem and the cause of accumulated error for inertial strapdown attitude solution were analyzed.
采用低精度的微惯性陀螺和加速度计作为微惯性捷联姿态确定系统元件,首先分析了捷联惯性姿态解算的非线性问题和误差累积的原因;根据姿态三角函数关系引入横滚、俯仰角的3个替换变量作为状态变量,并根据状态变量之间的约束方程和运动体前向速度测量,建立了捷联惯性姿态的一种扩展卡尔曼滤波模型;采用MTi微惯性捷联测量组合进行实验,将该扩展卡尔曼滤波方法解算载体姿态结果与捷联姿态解算结果相比较,验证了该方法抑制惯性姿态解算累积误差的能力。
3) accumulative error
累积误差
1.
With the purpose to reduce influence of accumulative error from the recurrence formula of residual stress measured with magnetic stress meter on the calculation result,based on the consideration that the stress at a same measuring point has no relation to the measuring order,the author proposed an improved calculation method for the work piece with free boundaries on both ends.
为了减小CCY-84型磁测应力仪残余应力递推公式中累积误差对计算结果的影响,针对两端自由边界的工件,基于同一测点应力与其测量顺序无关的思路提出了改进的计算方法,并在实际测量770mm×1200mm×2820mm球墨复合铸铁轧辊工作层残余应力中得到了应用。
4) cumulative error
累积误差
1.
The simulated results show that when muzzle velocity is zero the cumulative error induced by acceleration of 0.
6g加速度所引起的累积误差可达2。
2.
Through the study, it is found that the equation is fine and simultaneously the step used in usual flight simulation can meet the command of step determined by the absolutely stable domain of the equation, and the main source of the error lies in cumulative errors.
对定步长的龙格—库塔法用于欧拉方程的四元数法求解时所表现的巨大误差作了进一步的研究 ,发现方程组是良态的 ,同时在通常的飞行模拟仿真中 ,所取的步长也是能够满足方程组的绝对稳定区域所带来的步长限制 ,而此误差产生的原因主要在于累积误
3.
This paper makes further research on the error,caused by use of a single step or a variable step of Runge Kutta to solve the Euler equation of quaternion method, find that the large error results from cumulated error with single step, and when using the variable step,the cumulative error is less.
结果表明 ,定步长时有很大的累积误差 ,单位四元数的“单位”性不能得到满足 ,而变步长有明显的改观 ,对一般的飞行模拟状态 ,都能得到较好的模拟结果 ,可以在实际中使用。
5) error accumulation
误差累积
1.
The paper presents a new configuration scheme of gyro-free strapdown inertial navigation system(GFSINS) which is consisted of nine accelcrometers,gives the methods of angular velocity calculation for the configuration of ac- eelerometers,and analyses the error accumulation of angular velocity of its configuration scheme by simulation.
文中提出了一种新的由九个加速度计组成的无陀螺捷联惯性导航系统(GFSINS)的配置方案,给出了该加速度计配置的角速度解算方法,通过仿真分析了该配置方案的角速度误差累积。
2.
To eliminate error accumulation in the mosaicing of large-scale microscope images, a new algorithm was proposed.
针对大规模显微图像拼接中的误差累积问题,提出了一种新的图像拼接模型。
3.
This paper illustrates collocations in English language and their functions in terms of reducing error accumulation, improving accuracy and fluency in L2 acquisition.
词语搭配是英语中普遍存在的语言现象;在二语习得中,词语搭配对减少语言输入和输出中的误差累积、提高语言表达的准确性和流利程度具有重要意义。
6) accumulative error
积累误差
1.
A method by which the mosaic accumulative error can be eliminated is also proposed.
提出了一种适宜于生成全方位全景图象的拼接和平滑算法 ,给出了一种消除拼接积累误差的方法 ,进而首次在立方体表面拼接成功了全方位全景图象 ,并由此生成了球面上的全方位全景图象 。
2.
Through analyzing the model, the best image overlapped ratio and the accumulative stitching error are obtained,and the validity of the method which can eliminate image stitching accumulative error is proved in theory, contrastive samples have been also given.
对图象拼接的误差及其对图象质量的影响建立了数学模型 ,通过对模型的分析得到了图象最佳重叠比例和拼接积累误差期望值的计算公式 。
补充资料：误差积累
误差积累
accumulation of errors;
误差积累【a“”mu轰ati佣ofe~;圈翻臼n~nol伴侧.0-哪}代数方程组的数值解中的 在计算过程各个阶段的舍人误差对代数方程组训算解的精确度的总影响.在线性代数数值方法中，对舍人误差的总影响的先验估计最普遍采用的技术是逆(或向后)分析方法.证用到解线性代数方程组 点_、二方(价逆分析方案(schel_级。of一nvers‘:ar，a]ysls)女日卜假设应用某直接法初由此法算出的解场井不满足方程(1)，但它可以表小为扰动方程组 份丰矛漪片二力十、、(2)的精确解.根据对矩阵人，和向量戈的范数所能找到的最佳先验估计来估计直接法的质量这些“最什一的凡，和蝙分别称为力法M的等价扰动矩阵和向量 如果对从，和从，的估计是可得到的，那么近似解叭，的误差理沦_}_l‘由不等式 }_、义。}l --——一专 {}一、{} 、八~、，月、自汽、}、:{坑}} ‘一两岁{号万而…一湍十箭·甲估计这甩山nd曰)一{4{·}功{1是矩阵」的条件数.并假定(3)中的矩阵范数从属犷向量范数}· 实际卜，A;的估计是很难预光知道的以)的 仁要意义在J’已提供厂比较不同方法的优劣的可能性卜面提出矩阵凡，;日某婆典型估计 对用!E交变换和浮点运算(假斌方程11)中的4和八是实的少的方‘法 骊八，{，续/(川}{沁!::.件)在这估计式中，￡足计算机中的相对情度，1卜月;}、一(又代)‘’是Euclid矩阵范数，八旧是〔城‘型函数.这里。
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参考词条