Homework 5. of Photogrammetric Computer Vision – 3D Reconstruction

I’m also take one lesson on Computer Vision in this semester. The homeworks are not difficult but practical.

Here is output of the 5th. homework.

Figure 1.

Figure 2.

The main task is to do both Projective Reconstruction and Euclidean Reconstruction given corresponding point pairs and some control points in euclidean coordinates.

In Projective Reconstruction we firstly calculate the fundamental matrix from the given point pairs and then derivate the projective matrices using normalized configuration (the most simple way) . With all this information a linear triangulation method is used to calculate the corresponding object points in projective space. And those procedure is so called Projective Reconstruction (of course the simple without any optimization).

In Euclidean Reconstruction we simply using all the information we got from the Projective Reconstruction and make the same procedure to the control points. At the mean time we calculate the spatial homograph using the control points.   Finally all the object points in projective space are transposed into euclidean space using the same spatial homograph, and that is so called Euclidean Reconstruction (without any optimization).

My document(PDF format) of this homework is below, if you have interest, maybe you can read it.

Homework 5. of Photogrammetric Computer Vision – 3D Reconstruction

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6 Comments

  1. 王晓年
    Posted %A %B %e%q, %Y at %I:%M %p | Permalink

    很高兴看到你的同济大学经历,我也是同济大学的,最近也有个和你 Homework 5. of Photogrammetric Computer Vision – 3D Reconstruction 相似的任务。不知可否参考一下你的程序还有数据?还有参考那些文献了?希望你能回信。

  2. Posted %A %B %e%q, %Y at %I:%M %p | Permalink

    已经给你回信了,请查收。如果来信能把问题描述清楚一些会更好。

  3. xiaohou
    Posted %A %B %e%q, %Y at %I:%M %p | Permalink

    你好。。我也正在做三维重建~~已经标定了摄像机的内外参数。。图像匹配点也已经找到。。正在求图像特征点的三维坐标,并实现三维重建。。
    看了你的作业的效果图,和我做的很类似。。希望可以和你讨论讨论。。能否参考一下你的程序,还有数据呢~~

  4. Posted %A %B %e%q, %Y at %I:%M %p | Permalink

    主要算法就在pdf文档里面,你可以下载来看看的:)

  5. xiaohou
    Posted %A %B %e%q, %Y at %I:%M %p | Permalink

    我需要你的试验数据,可以传一份给我吗?
    非常感谢

  6. Posted %A %B %e%q, %Y at %I:%M %p | Permalink

    sorry,这个由于一些原因不能提供

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