仿射坐标

Affine transformations are transformations that preserve collinearity and relative distancing in a transformed coordinate space.

仿射型变是在一个转变坐标空间内保持共线性和相对距离的型变。

Then, the minutiae sets are aligned globally through coordinate transform, and the alignment parameters are optimized by using affine transform and least square method. Finally, minutiae matching and directional field matching are respectively achieved based on the minutiae alignment, and the two matching scores are fused into a single to obtain a more reasonable result. Experimental results show that this method contributes to ensure the accuracy of fingerprint identification as well as possesses the real-time performance.

该算法首先利用脊线信息快速确定满足局部匹配要求的细节点对，在此基础上进一步通过全局坐标变换完成细节点的全局配准，并采用仿射变换模型通过最小二乘估计对配准参数进行优化，然后在配准的基础上分别进行细节点匹配和方向场匹配，最后对两种匹配分值进行融合，以取得较合理的匹配结果。

GDAL datasets have two ways of describing the relationship between raster positions (in pixel/line coordinates) and georeferenced coordinates. The first, and most commonly used is the affine transform.

GDAL dataset有两种方式去描述栅格位置和地理坐标的关系：第一种，也是最常用的一种是用仿射变换，另一种是GCPS地面控制点

Based on the 2 sets of CPI-accuracy plane coordinates composed by the 14 GPS control points along the Hunan-Guangxi railroad line, we carried out coordinate transformation using the Similarity Transformation Method and the Affine Transformation Method in different common point numbers and position distributions.

以湘桂线14个GPS测量点的两套CPI精度的控制点平面坐标为依据，分别用相似变换、仿射变换及不同公共点个数求转换参数进行坐标转换，分析成果精度之间的差异及规律。

The author also investigates Geo~coordinate transformation and similitude/affine transformation. Having accomplished the design of functions of spatial reference system, the author defines and designs the interfaces, component classes and then implements the component framework.

研究了关于大地坐标系转换和平面坐标的相似和仿射变换理论，在完成空间参照系统的功能设计的基础上，定义了空间参照系统的接口和组件对象，并设计和实现了这一系统。

Then the Cartesian coordinates was converted to spherical coordinates in which the watermark was embedded.

先将3D物体模型转换到仿射不变空间，然后把顶点坐标转换到球面坐标，利用球面坐标来嵌入水印。

Of or relating to a transformation of coordinates that is equivalent to a translation, contraction, or expansion with respect to a fixed origin and fixed coordinate system.

仿射的与一个固定原点及固定坐标系有关的等价于平移、收缩或展开的坐标变换式的，与其相关的

These coordinates were used to affinely register the images to a standard geometry with fixed eye locations and image size of 99 132 pixels.

这些坐标用来将这些图像仿射记录为眼部位置固定且图像大小为99 132的标准几何图形。

This chapter provides a mathematic model for the transformation between two images obtained from the same scene. Based on pin-hole camera model, the relationship between the coordination of two images is discussed using two camera models, and it is proved that geometric relationship of two images obtained from one scene satisfies affine transformation.

论文在透视投影成像模型基础上，用两个不同相机在不同位置对空间中同一点成像，推导出对应点在不同图像中像素坐标之间的解析表示形式，证明了像素坐标之间满足仿射模型，同时分析了图像之间满足仿射模型时应具备的条件。

This chapter provides a mathematic model for the transformation between two images obtained from the same scene. Based on pin-hole camera model, the relationship between the coordination of two images is discussed using two camera models, and it is proved that geometric relationship of two images obtained from one scene satisfies affine transformation.

论文在****投影成像模型基础上，用两个不同相机在不同位置对空间中同一点成像，推导出对应点在不同图像中像素坐标之间的解析表示形式，证明了像素坐标之间满足仿射模型，同时分析了图像之间满足仿射模型时应具备的条件。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。