查询词典 reference frame

This method represents the virtual objects in Euclidean space instead of in affine space, which is consistent with the popular graphics rendering tools such as OpenGL and is more common in practice. A new classification based local and global tracking strategy to match features between the reference image and the currently frame directly is presented, which enables the augmented reality system working effectively even under large changes of viewing angles. A novel affine coordinate system definition method based on a collection of feature points is also proposed, which makes the tracking method effective even when not all the reference points are detected during the whole process, as long as there are at least four pairs of reference points correspondences.

该方法以仿射变换为桥梁来建立欧氏空间下的摄像机坐标系与世界坐标系之间的变换关系，它与OpenGL等当前流行的图形渲染工具一致，具有更强的通用性；采用基于分类的自然特征匹配策略，能够在视角和视点发生大幅度变化情况下依然正常工作；提出基于特征点集合的仿射坐标系定义方法，使增强现实系统在最小配置下只需4点追踪成功即可完成注册，比需要6点的透视投影方法具有更好的健壮性和精确性。

Since Strauss challenges the contemporary frame of reference, to follow his interpretation of Weber we must, at least provisionally, be willing to step out of our frame of reference and our presuppositions about classical political philosophy.

因为施特劳斯挑战了当代参考标准的构架，为了追随其对韦伯的阐释，我们必须起码暂时跳出我们的参照框架以及我们对古典政治哲学的预设。

On moving base, a new initial alignment algorithm for strapdown inertial navigation system is proposed. In the algorithm, two special inertial frames, the initial-time inertial frame (i0 frame) and the initial-time SINS body inertial frame (ib0 frame), are defined and are selected as calculation reference frames, then, the calculation of initial alignment direction cosine matrix is expanded into three parts:(1) the DCM between i0 frame and the navigation frame will be easily obtained via local geographical coordinates and initial alignment time;(2) attitude updating using gyro samples gets the DCM between SINS frame and ib0 frame;(3) by explaining SINS specific force equation in SINS body frame, the relation between velocity log, accelerometer measurement and gravity acceleration is established to achieve the constant DCM from ib0 frame to i0 frame.

在运载体运动情况下，提出了一种适用于捷联惯导系初始对准的新算法，该算法以惯性空间为参考基准，即建立了初始时刻惯性坐标系（i0系）和初始时刻捷联惯组惯性坐标系（ib0系）两个惯性坐标系，将初始对准姿态矩阵的实现分解为三部分：（1）通过地理位置和初始对准时间求解i0系至导航坐标系的变换矩阵；（2）使用姿态更新算法实时计算捷联惯组相对于ib0系的变换矩阵；（3）通过惯导比力方程变形，获得测速仪辅助测量、加速度计输出和重力加速度之间的关系，从中可以求解出从ib0系至i0系的常值变换矩阵。

Usually set up Newton's first law of inertial frame of reference as a frame of reference, so this law is defined in practice this important concept of inertial frame of reference.

通常把牛顿第一定律成立的参照系成为惯性参照系，因此这一定律在实际上定义了惯性参照系这一重要概念。

Then you will find yourself at the point of letting in your infiniteness as replacement for the sense of tininess and vulnerability that constitutes the first experience of the three-dimensional frame of reference, and therefore the last experience of the three-dimensional frame of reference.

当你允许你的无限本质取代渺小且脆弱的感受（这种感受正是构成三度空间思想架构的最初体验，因此也是三度空间思想架构的最终体验）时，你便会找回你自己。

A frame-by-frame address code time reference recorded on the spare track of a videotape or inserted in the vertical blanking interval for editing purposes.

一个逐帧的地址编码时间参照，记录在一盘录像带的备用轨道上，或插入到垂直的空白间隔中以备剪辑之需。

In a short retrospection of the history and present situation of international talent flows, chapterl shows the objective demand for changing the normal formulas in the whirligig of age, redefine the concept of human capital, outline the relevant concepts and its fundamental types, and then give a brief analysis to the relation between the evolving of multiple economic and social pattern and talent flows, set up the frame of reference of international migration studies of specialized human capital in the frame of multiple economic and social pattern.

然后，专门分析多元经济社会形态的演进与人才流动的关系，构建了多元经济社会形态演进中专业化人力资本国际迁移研究的参照系。

Indeed, even the phrase "at the same time" is only meaningful relativistically in a particular inertial reference frame.

其实，即使是这句话：&在同一时间&，是唯一有意义的relativistically在某一惯性系。

In the reference frame,mathematic model and dynamic equivalent circuit was built.

在d-p坐标系统下，构建了同步发电机的数学模型以及动态等效电路。

Based on a study of the passive articulated rover,a complete suspension kinematics model from wheel to inertial reference frame is presented,which uses the D-H kinematics model method of manipulator and presentation with Euler angle of pitch,roll,and yaw.

以被动关节式地形自适应月球车为研究对象，融合关节机器人D-H坐标建模方法构建了月球车悬架运动学模型和以侧倾、俯仰和偏转角表示姿态的欧拉角方式建立了车轮到世界坐标系的悬架完整表达模型。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。