Questions tagged [point-cloud]
The point-cloud tag has no usage guidance.
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Elevation angle estimation from L-shaped antenna array
I have TI IWR6843ISK-ODS radar sensor and need point cloud data as output from it. The antenna arrangement is as follows:
I would like to know how to estimate elevation angle with this antenna ...
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Using nearest neighbor in RANSAC
I found many resources online talking about nearest neighbor concept in RANSAC. For example, figure 2 of this paper, this article and this repo talk about nearest neighbor in the context of RANSAC. ...
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Finding rectangle corners by using point cloud
I have a rectangle in the 3D scene, which I know its width and height. It is placed in the 3D scene like the image below. I can manually select all points on the rectangle by mouse click.
Given the ...
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Registration of point cloud based on feature matching method
I recently find myself an interesting problem to solve.
Basically I got 2 partially overlapped point clouds (in real world) that I want automate the registration process. My naive approach currently ...
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What is the name of the filter or technique to reduce depth aliasing around object edges when working with camera depth?
I'm working with a point cloud, created by sampling a 2D camera texture and a depth map. The color is combined with the depth and is projected onto a 3D scene to create a "point cloud".
The ...
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Making a 3D point cloud from multiple RGB-D images
I have multiple (4 kinect) cameras that give RGB-D (color and depth) information of the same scene from different points of view. I want to make a 3D point cloud out of these depth maps. I can get a ...
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Can LiDaR be used for volume measurement? [closed]
I need to measure volume with LiDaRs. However, they seem to only capture the surface of an object. More precisely, the surface that is seen by the sensor. Therefore, the cloud point data that it ...
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Combining Multiple Point Clouds
I have a car with 8 lidars, each with a field of view of 60 degrees. My car looks like this
How can I merge all the lidar readings into 1 point cloud?
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Multiple-image dense point cloud reconstruction with camera extrinsics/intrinsics
I have the following data available:
Images from different angles
X, Y, Z, pitch, yaw, and roll for each camera/image, together with the timestamp
Lens distortion parameters and intrinsic camera ...
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Is it possible to make 3D point cloud with RADAR?
Is it possible to make 3D point cloud with RADAR? Both LIDAR and RADAR are EM waves, but with different wavelength. So, if it is technically possible to make point clouds with LIDAR, why is it not ...
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Determining the covariance of point clouds in real-time
So basically I have a set of multidimensional data that I need to determine the covariance of between dimensions in real-time. Each point that comes in is a vector. I have gotten the mean and variance ...
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Point cloud comparison
Let me preface this question with the fact that two hours ago I had no idea what a cloud point was. I do however have a solid mathematical background although geometry has never been my focus. I do ...
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Image distortion and alignment on 3D mesh / pointcloud
Currently I have a fairly accurate (50 µm) and large dataset from a 3D scanner and a set of high resolution pictures. Sadly the 3D scanner (a Nikon/Metris arm-based CMM that was hanging around the lab)...
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Processing line scanner data
I have a line scanner output that is scanning the geometry of a surface. Typically the output looks something like this:
Where the x and y axis refers to the coordinate system in mm. (ignore the red ...
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Can the Z-Transform be used to create smoothed 3D surfaces from point clouds?
According to Dr. Math the Z-transform can create closed-form solutions for 1D series defined by difference equations (e.g. the Fibonacci series).
My 3D surface $z=LC(x,y)$ is defined by difference ...
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