查询词典 projective

We adopt the frequency-domain-based affine model and optical flow equation. First, we compute the larger spatial transformation. Then, we refine the parameters using projective transformation.

我们采用的是基于频域仿射模型的光流方程，即首先计算比较大的空间变换，然后再对其进行透视变换求精，实验证明这样既可以获得较好的效果，也提高了计算速度。

Then, an optimization algorithm is used to optimize the initial projective transformation matrices by using area around each feature point, and complete the precise image mosaics.

方法的具体实现为：首先利用相位一致方法提取各图像中边缘上的角点特征，对特征角点进行初始匹配，然后利用初始匹配的角点计算变换矩阵的初始参数，再以光强度差的平方和为优化目标函数，在优化的过程中逐步获得变换矩阵的最佳参数，最后对重叠区域运用渐入渐出的方法实现了光强或颜色的自然过渡。

One is applying a same projective transformation to the two quadrics simultaneously; another is replacing one quadric surface with an appropriate member of the pencil formed by the two quadric surfaces.

由前面给出的QSIC的两个性质可知，简化过程中对两二次曲面进行的两种操作不会改变它们的QSIC的拓扑形态。

Projective transformation of curved surface and plane intersecting line are completed based on vector algebra,adopting space coordinate transforming method.

方法基于向量代数，采用空间坐标变换方法，建立了圆锥面与平面相交中截交曲线的形成特点，讨论了二次曲线的构成的数学原理。

Therefore, we proposed a plane image normalizing method based on projective transformation. This method is also suit for stereo image normalization under large disparity. 3、Object existence decision is needed before extracting disparity from stereo image.

考虑到通常立体视觉方法对两个摄像机一致性的要求较高，不便于在监控系统中安装摄像机，我们提出了一种基于射影变换的平面图像规格化方法，该方法对大视差条件下的双目图像规格化也具有较好的效果。

By analyzing the view frustum in graphics hard-ware, we deduce an equivalent projective transformation, which enable us to use auniform format to represent the surface splatting based on both software and hardwareimplementation.

在该算法中，通过分析图形硬件中投影矩阵的表达形式，推导出了等价的透视投影变换模型，从而使得基于硬件和基于软件的绘制算法形成统一的表达形式。

Firstly, an Iterative Closest Point algorithm is applied for coarse registration. Secondly, gradient feature is extracted from image. Based on the principle of projective transformation, the fine registration is performed by finding the maximum CT gradient projections.

首先基于一种最近点迭代法进行快速粗配准；然后提取图像的梯度特征，根据投影变换原理，采用寻找具有CT最大梯度投影位置的方法进行精配准。

Methods A middleaged male frozen specimen sectional images of the head and neck were acquired using cryosectiome method. With the software of Matlab, the character of the excalibrator was acquired automatically, and the data set were autoregistrated based on two point projective transformation algorithm.

方法采用冰冻铣切技术获取成年男性头颈标本的冰冻连续断层图像，在Matlab软件中自动提取定标点图像特征，采用基于2点的刚体变换算法实现图像的自动配准。

In order to improve the control performance, when the image distortion is too large resulting from camera obliquity, these parameters are transformed from image coordinate to robot coordinate through projective transformation, while parameters such as position and curvature are not necessarily provided.

为改善控制性能，当由于摄像机倾角较大而引起的图像畸变较大时，利用射影变换把参考轨线参数从图像坐标系映射到机器人坐标系，而无须提供位置、曲率等参数。

As you will see, it illustrates the process of projective identification and will

你将会看到，它展现了投射性认同的过程。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。