Questions tagged [triangulation]
Triangulation is either using angular measurements along a baseline to find the location of points, or splitting a polygon into triangles so that it can be rendered by a graphics library.
triangulation
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Input order of points changes the outcome of Delaunay Triangulation
Recently I have learnt about the Delaunay Triangulation and using the Bowyer-Watson algorithm to solve it. When implementing, I followed along from the wikipedia pseudocode and other sources to create ...
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reconstructing 3D points using cv2.triangulatePoints vs doing it with equations do not yield same results
In the provided code snippet, I am performing stereo triangulation to reconstruct 3D points from corresponding 2D points captured by two different cameras.
First, I loaded calibration data such as ...
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3D individual Delaunay cells that change color internally, depending on value of Z (or any other function)
I've got a 3D surface built on Delaunay triangulation. Do you know how to enforce matplotlib to paint each triangle not with a constant color but with a user-defined-function dependent color ? (or at ...
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A 3D plot invisible where it overlaps the gray border
Having shifted the origin of a 3D plot to the left bottom corner of the display window, and having enlarged it along the horizontal direction, I get the plot cutoff (but the frame remains) right where ...
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JavaScript Triangles Not Scaling Correctly
I am working on a an effect that create many point and triangulates them to create a simple background animation. However, when I try to scale them down, not all lines are scaled accordingly and are ...
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Computing surface Laplacian/Laplace Beltrami in R using Delaunay triangulation
I have been researching methods to compute the Laplacian/Laplace-Beltrami operator, but I've found that R lacks built functions for these purposes. There is actually a package that allows for ...
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Meshing a parametrized surface
I have a problem which I thought was standard, but it appears not to be.
I have a closed surface in 3D space (the membrane of a red blood cell). The surface is parametrized using spherical harmonics.
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Good way to stabilise hand landmarks with help of two cameras?
I want to be able to stabilize a set of landmarks with the help of two cameras, right now im using a dual camera setup and cvzone.HandTrackingModule for both cameras. So the output is two landmarklist ...
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How can I generate a concave hull of 3D points?
I have 68 3d points (I'm guessing it's called a sparse point cloud). I want to connect them all together to create a mesh. I first tried this using Delaunay Triangulation. However, it didn't work well ...
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Meaning of mesh_size
In the following, does "mesh_size" refer to the maximum perimeter or maximum area of each element?
with pygmsh.geo.Geometry() as geom:
geom.add_polygon(
[
[0.0, 0.0],
...
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Opencv-Triangulation function giving nonsense results
we are currently working on an autonomous vehicle project and we are testing this code using the Carla application. I have a vehicle from the simulation and I have two vehicles on the vehicle at a ...
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I am trying to find car motions with two cameras on Carla but the results are meaningless
I have two cameras in a fixed position on the vehicle and the features of these cameras are exactly the same. First, I record an image with these two cameras, which I call "initial". Then, ...
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Polygon Triangulation is not proper for some polygons using Delaunay Triangulation Method
My original polygon WKT is this:
POLYGON ((98.51786360976723 78.60265688535823, 98.51786360976723 78.67546052678281, 98.78608990953424 78.67546052678281, 98.78608990953424 78.60265688535823, 98....
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xyz (latitude longitude elevation) position on a surface
how do I find a the xyz position on a surface created with multiple points. Say I survey the perimeter of a parking lot sloped in 2 directions not necessarily on a flat plan to create a surface. If i ...
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Understanding cv2.recoverPose's coordinate frame transformations
I am having problems understanding the functionality of cv2.recoverPose(points1, points2). As of my understanding of the documentation, this function should return the rotation matrix from camera1 to ...
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