中心投影

构建了利用多个面阵CCD影像合成大像幅、中心投影数字航空影像的误差模型；

The error model has been built using multi-matrix CCD images to synthesize a central projection virtual image with large size .

中心投影变换及其在二值图像检索中的应用

Central projection transformation and its application in binary image retrieval

首先简要论述了框幅式中心投影遥感影像的传统核线模型及其理论特性，分析和总结了线阵CCD推扫式遥感影像的核线模型及其研究现状；

First , the paper summarized the traditional epipolarity of Frame perspective images and its properties , analysed the epipolarity geometry of Linear CCD pushbroom images and current status .

应用摄影测量理论，将星载SAR图像近似看作一个多中心投影传感器获取的等效影像，基于星载SAR共线方程给出了SAR图像的自校验直接线性变换定位模型。

The satellite SAR imagery was regarded as an image which was acquired from the multi-center projection sensor approximately based on photogrametry theory . The satellite SAR collinearity equation was revised and the self-calibration direct linear transformation model for satellite SAR was proposed .

其次，据中心投影成象方程以及在分析了摄象机镜头和光电转换畸变特点的基础上，提出用于摄象机定标的直接线性变换&误差校正拟合（DLTEA）算法。

Then the Direct Linear Transformation-Error Approximation ( DLTEA ) algorithm is proposed .

本文从分析传统中心投影法入手，介绍了平面圆柱投影（FCP）的基本概念、主要特点，深入地探讨了实现FCP的一种光学器件&全景环形透镜（PAL）的工作原理。

Beginning with analysis of traditional central perspective , this paper introduces the basic concept of flat cylinder perspective ( FCP ) and profoundly discusses the working principles of panoramic annular lens ( PAL ), one of the optical elements that can realize FCP .

用中心投影来推广初等几何定理

Generalizing the theorems of elementary plane geometry by using the central projection

中心投影与平行投影椭圆对应关系的研究

Research on Relationship of Centre Projection and Parallel Projection Ellipse

四维线中心投影

The line - central projection in four dimensional space

一种仪表指针位置检测的中心投影法

A New Meter Dial Indicator Detection Method Based on Center - point Projection

智能结构的方法、关键技术和应用展望运用于高速公路的中心投影图

Review for the Methods , Key Techniques and Application Perspective of Intelligent Structures

基于中心投影原理建立了成像任务设备辅助导航的量测模型。

The measurement model for the payloads to aid the navigation system is built .

中心投影二求三作图及恢复三维空间的研究

Studies on the Method of Drawing Perspective Pictures and the Calculating of Reconstructing 3-D Space

本文利用中心投影对求交叉权重的算法进行简化。

In this thesis , the central projection is used to simplify the calculation of cross-weighted algorithm .

这两种方法依据中心投影灭线和灭点的原理推导。

Both methods are deduced from the principles of vanishing point and vanishing line of perspective geometry .

圆的中心投影

Central projection of circle

在土木建筑工程设计中，中心投影图的应用越来越广泛。

The application of perspective drawing to the field of civil engineering design is more and more extensive .

D~4线中心投影的计算公式及D~4空间的平移变换和旋转变换

The Formula of D ~ 4 Line-Central Projection and the Translation Transformations and the Rotation Transformations in the D ~ 4 Space

根据现有资料情况，确定了采用等效线中心投影的构像模型作为几何处理的数学基础。

According to the image data possessed , the formation model of equivalent line central projection is adopted to establish the correspondence between image and object space .

新研制的两用绘图机，结构简单、操作方便、作图迅速准确，具有能同时绘制平行投影图和中心投影图两种功能。

The authors have designed a multiple function drawing machine , the perspective plotter , which is both simple in structure and easy for operating and accurate for drawing .

首先，在帧间特征点匹配已确立的前提下，利用仿射运动模型并结合中心投影方式提出了运动估计的最小二乘模型；

First , with the established correspondences of feature points between consecutive frames , the least squares estimation model is proposed based on affine motion model and perspective imaging model .

本文给出了工程上常见的四种类型曲面，回转曲面、椭圆型曲面、二次曲面及直纹曲面的中心投影的轮廓和轮廓线方程。

This paper presents the contour line equations of central projection of four surfaces widely known in engineering ( revolution surface , elliptic surface , quadric surface , and ruled surface ) .

本文推导出D~4线中心投影的计算公式，并且提出D~4空间的平移变换矩阵和绕各坐标面旋转的变换矩阵。

This paper deduces the formula of D ~ 4 line-central projection . It also puts forward the translation transformation matrix and the transformation matrix rotating around each coordinate plane in the D ~ 4 space .

讨论各种特殊位置几何形的中心投影特性，以及超立方体的四灭点中心投影及其灭面组成的三棱维。

And the characteristics of central projection of geometric figures situated in particular positions , the 4-vanishing point-central projection of a hypercube and the triangular pyramid formed by its vanishing plane were also discussed in this paper .

给出了任意7点形作为坐标系中心投影仿射形的充分必要条件，以及作为直角坐标系中心投影的充分必要条件。

The adequate and requisite conditions have been given on which the seven & point figure becomes the affine figure of the central projection of the coordinate system or the central projection of the right angle coordinate system .

使用条件霍夫变换（ConstrainedHOUGHTransfer）和中心投影分析法实现刻度的全自动识别，采用快速中心投影法进行指针检测与识别，识别速度达到68ms。

The constrained HOUGH transfer method combined with the mid-projection method is used to achieve a fully automatic scale recognition process , and the fast mid-projection method is also used to recognize the pointers , which decreases the pointer recognition time to 68 ms.

首先根据严格的中心投影共线条件方程，推导出目标飞行器光学特征点坐标和对应的像点坐标与内参数及相对位置和姿态的严格解析关系；

At first , in the paper the rigorous analytical relations among the feature point coordinates of the target spacecraft , the corresponding image point coordinate , interior parameters , relative position and pose are induced according to rigorous collinear equation of the central projection .

轨道交通圆曲线站台中心线投影及边距确定

Projection of Curvy Platform Center and Side-distance Determination in Railway Traffic

从投影中心或投影中线的辐射距离缩得太短。

Radial distances from CP or CL are too short .

这是一个以埃及孟斐斯为圆心等距离投影区段。从投影中心或投影中线的辐射距离太短。

This is a section of an equidistant projection centered on Memphis Egypt . Radial distances from CP or CL are too short .