透视

Having the sphere in the center of the view press Ctrl+C to create a Camera and fix the chosen foreshortening. In

调整透视，（将所要表现的物体放置在画面的中间）然后按下Ctrl C来创建出摄像机，然后修正透视，之后按P键切换的透视图都会

If you look at the frustum from any side, you can view it as a two dimensional triangle - we will use this perspective to analyze the problem, as it allows us to deal with one axis at a time.

从任何一个角度看这个锥截体，它都是一个二维三角形—我们将用这个透视法来分析这个问题。用透视法我们可每次只处理一个轴。

Based on the former chapter, one method based on fundamental matrix and crossrate is proposed in this chapter to render novel image considering the character of fundamental and cross-rate invariant in the perspective project, which utilized the correspondence relationship between the given two images and projective invariant between images to render novel image.

该方法通过将基本矩阵的稳定性求解问题转化为一个有条件的极值求解问题，结合遗传算法良好的全局寻优特点，将该方法很好地引入到基本矩阵的求解中，并取得了良好的实验结果。（5）第五章在上一章的基础上，综合基本矩阵和透视投影中的交比不变性的特点，提出了一种基于基本矩阵和交比的生成新图象的方法，这种利用已知两幅图象之间存在的匹配关系和新图象和已知图象存在的透视不变量，来生成新图象。

In IBR (image-based rendering) application, we introduce homotopy mapping into view interpolation based on uncalibrated images, and present three forms of perspective homotopic transform according to different conditions.①The linear interpolation technique presented only preserves perspective geometry, but the intrinsic and extrinsic parameters of camera are changed. For the uncalibrated images, its application is restricted.②The view interpolation presented for rotational uncalibrated images can preserve both perspective geometry and the intrinsic parameters of camera, and the view position can be controlled. At meanwhile, the image registration method and panoramic images synthetic method is presented.

3在基于图象的绘制技术方面，将同伦变换引入视图插补中，针对未标定图象序列，并根据以下三种情况给出相应的透视同伦变换，①只保证符合透视关系，而摄象机内外参数均已改变的线性插补技术，对于标定图象序列，这种插补技术是非约束的，而对于未标定图象序列则只适合于某些特殊场景；②旋转图象序列的视图插补技术，同时给出了旋转图象序列的整合及全景图生成方法；③通过对非约束图象的预校正，完成平移情况下的视点插补。

And based on the perspective mapping, we have got the arithmetic of inverse perspective mapping, which realizes getting the depth of the object through the single camera.

根据摄像机透视映射原理，进行逆换算从而得到逆透视映射，从而实现了利用单摄像机获取环境深度信息，简化了系统的结构，有效的实现了自主避碰导航。

" I believe the best way to think about our earnings is in terms of "look-through results, calculated as follows: Take $250 million, which is roughly our share of the 1990 operating earnings retained by our investees; subtract $30 million, for the incremental taxes we would have owed had that $250 million been paid to us in dividends; and add the remainder,$220 million, to our reported operating earnings of $371 million.

我个人相信最好的方式是利用透视的方法来衡量伯克希尔的盈余，2 亿 5，000 万美元大概是我们在 1990 年可以从被投资公司那边未分配到的营业利润，扣除 3，000 万的额外股利所得税，再将剩下的 2 亿 2，000 万美元加到本来的帐列盈余 3 亿 7，100 万，所得的 5 亿 9，000 万大概就是我们经过透视的真正盈余。

Last year, however, our look-through earnings did not grow at all but rather declined by 14%. To an extent, the decline was precipitated by two forces that I discussed in last year's report and that I warned you would have a negative effect on look-through earnings.

然而去年我们的透视盈余不但没有增加，反而减少了 14%，这样的下滑主要导源于去年年报就曾经向各位提过的两项因素，那时我就曾经警告各位那对我们的透视盈余将会有负面的影响。

I've told you that over time look-through earnings must increase at about 15% annually if our intrinsic business value is to grow at that rate. Indeed, since present management took over in 1965, our look-through earnings have grown at almost the identical 23% rate of gain recorded for book value.

我曾经告诉各位，长期而言，如果我们的实质价值也期望以这个幅度来成长的话，透视盈余每年也必须增加 15%，而的确过自从现有经营阶层于 1965 年接手后，公司的透视盈余几乎与帐面价值一样，以 23%的年复合成长率增加。

If our intrinsic value is to grow at our target rate of 15%, our look-through earnings, over time, must also increase at about that pace. When I first explained this concept a few years back, I told you that meeting this 15% goal would require us to generate look-through earnings of about $1.8 billion by 2000. Because we've since issued about 3% more shares, that figure has grown to $1.85 billion.

长期而言，如果我们的实质价值想要以每年15%的幅度来成长的话，那么透视盈余每年也必须增加以这个幅度来成长，几年前我第一次提到这个观念时曾表示，到公元2000年为止，Berkshire若要以15%的目标，透视盈余必须成长18亿美元以上，而由于1993年我们又发行了一些新股，所以现在的门槛提高到18.5亿美元。

The after-tax earnings in 1990 from our preferred had been about $45 million, an amount somewhat higher than the combination in 1991 of three months of dividends on our preferred plus nine months of look-through earnings on the common.

首先我告诉各位旗下媒体事业的盈余，不管是帐面直接或是间接透视一定会减少，而事实证明确是如此，第二个因素发生在 4 月 1 号我们吉列特别股被要求转为普通股，1990 年来自特别股的税后盈余是 4，500 万美元，大概比 1991 年一季的股利总和加上三季的普通股透视盈余还多一点。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。