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Questions tagged [vanishing-point]

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Finding the Angle between Vanishing point and Lines in Python

I am working on a project in which I need to first find the vanishing point in an image and the angle the vanishing point makes with the lines. I have done finding the vanishing point. How should I find the angle i.e theta1 and theta2 Consider I…
YRR
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2D polygon to 3D object and scene

Let's say that you have a camera and take a snapshot of a rectangular paper lying on a table. We get that picture, use as a flat background and need to set up an OpenGL scene in the way that the paper it's rendered with a quad with coordinates,…
Lucio
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gluPerspective has vanishing point in corner. Opengl

I'm using pyglet: http://www.pyglet.org/ to work with opengl. However, i have some problems. My vanishing point appears in the corner of the screen (0,0) the lower left corner. The following image should show illustrate this:…
shimao
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iOS - Using the same vanishing point for multiple elements when using CATransform3d

I'm trying to rotate multiple elements using CATransform3d, the problem is that each one is assigned an individual vanishing point. Since they are dynamic elements I cannot use an image to simulate all of them moving together. And I know no way to…
user2067377
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How to modify the perspective division in OpenGL?

How do you modify or override the perspective division calculation in OpenGL? Also is it possible to use x, y, z and w as variables in matrices in OpenGL?
user2689489
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Detect vanishing point in an image

In c#, is this possible to detect / find / retrieve a vanishing point ? For example, i would like to open an image, analyse it, and on top of it, draw all the line which are pointing to the vanishing ? I made some research, and all examples are…
Etienne Arthur
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Vanishing points in rubiks cube

Hi I'm trying to do the Ex 6.5 from Szeliski's book ... But I'm stuck at points 3 and 4, I have the theory of what a vanishing point is, but what does it mean to find it for each face? and how about the focal lenght and rotation angle for those VP?…
vlavyb
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Find the distance from camera to vanishing point in matlab

I have this program that finds the vanishing point for a given set of images. Is there a way to find the distance from the camera and the vanishing point? Also once the vanishing point is found out, I manually need to find the X and Y coordinates…
Next Door Engineer
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