透视

That is because the model is based on the ideal situation to presume the viewpoint as infinitely far away from the target. So it doesn't include the information of projection plane changing.

这是由于传统的模型是基于二维的平面运动模型，假设为投影点无穷远的情况，并不包含三维透视投影平面变化的信息，因此不能处理。

This model is deducted from the coordinate's transformation in three-dimension world. It obeys the principle of perspective projection plane transformation.

该模型从一般三维空间坐标变化出发，根据透视投影的原理，进行推导和简化，最终得到自由度为8的运动模型。

Finally, in order to establish the relationship between the omni-directional vision system and the planform display of road environment, a panoramic inversed perspective mapping is proposed for mapping road environment to a full-view planform image, where a more comprehensible view of traffic environment can be provided to the driver.

此外，针智能辅助驾驶中全方位环境感知问题，在多摄像机全景视觉系统的基础上，本文将逆透视投影变换扩展到全景图像中。

In this method,the perspective formula is not used again after calculating the first point insteed of using the continuity to calculate the next points on the moveing object.

该算法避免了频繁使用透视公式以及一些影响显示速度的手续，简化了确定动点位置的计算过程。

Intuition and psi abilities like telepathy, clairvoyance, precognition, and telekinesis.

直觉和超感能力，如心灵感应、透视能力、预知能力和意念力

Based on the model of linearcamera in the stereovision and the character of wandering in the virtual scene, this method can get a projection matrix by thecorrespondence of four points between image space and texture plane.

该方法以立体视觉中的线性摄像机模型为基础，针对虚拟场景漫游的特点及需要，利用透视投影中点的对应关系，通过图像空间与纹理平面上的四点对应，求得纹理校正的投影矩阵。

Approaches based on projective geometry are often associated with reference points given as prior knowledge.

其中，基於透视投影几何的方法，常与参考点所提供的已知资讯有所关连。

This paper analyzed the shortcoming of this strategy and then proposed a new correction algorithm based on the viewpoint of projective geometry.

为此从射影几何的观点提出了新算法：利用车牌固有的先验信息，将车牌与车牌图像之间的透视变换矫正为仿射变换，再将仿射变换矫正为相似变换，将此相似变换看做是对原车牌进行旋转和全局缩放的结果，消除其中的旋转因素，就得到一个与车牌仅差一个缩放因子的标准车牌图像，以便于后续的字符处理。

This paper presents the two conditions:Sufficient condition and necessary condition for the links of perspective mapping and projective mapping.

本文给出了射影映射为透视映射的两个充要条件，这两个充要条件与射影变换为对合的充要条件是一致的。

From the concept, it does the exact opposite of a camera: instead of recording an image of the environment by means of an orthographic or perspective projection, projective texture mapping projects an image onto the environment, by using a matrix very similar to the one a camera uses.

从这个概念上，它与摄象机正好相反，不是通过正交或者透视投影来记录环境的图象，而是把图象投射到环境上，通过使用类似于摄象机使用的矩阵。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。