Stack Overflow
Stack Overflow

Questions tagged [point-clouds]

A point cloud is a set of vertices in three-dimensional space, and is commonly the data set output by 3D scanners.

Point clouds are applicable to a variety of 3D imaging scenarios, including terrain mapping, CAD modeling, animation and metrology. A point cloud is a raw data set that typically needs to be converted into a useful data set, a process known as surface reconstruction. There are a variety of known algorithms that make this conversion.

Links

1346 questions
0
votes
1 answer

Animated Point Radii with CUDA and OpenGL

I'm trying to implement a point cloud with OpenGL and CUDA, where the radii of the points shall vary in size over time, based on some data associated with them. Since I'm completely new to OpenGL AND CUDA, I'm having a pretty tough time achieving…
Schnigges
  • 1,284
  • 2
  • 24
  • 48
0
votes
1 answer

Wrtie Data from C++ File (Point Cloud Library)

I am using the point cloud library to take in a depth map and then write the PCD file every second or so to the memory so that it can be picked up by another program. I have the program correctly rendering a depth map with a visualizer and it all…
clifgray
  • 4,313
  • 11
  • 67
  • 116
0
votes
1 answer

point cloud to low polly mesh

I am using the Kinect sensor to generate a point cloud of a person. I need to generate from the point cloud the corresponding set of collision surfaces in NVidia PhysX. To achieve it i have to smooth and after triangulate it to concave mesh/set of…
Towelie
  • 99
  • 2
  • 10
0
votes
1 answer

Exporting Point Cloud as .RAW

I am working with a large set of points and I am looking to export the point cloud to the .raw format. I searched for how to do this in Java, and it came back with the java.io.BufferedOutputStream class that nicely takes care of my search, but I…
user1535710
  • 1
-1
votes
0 answers

Converting point clouds to equirectangular image

Thanks for your help in advance. I am trying to convert a point cloud of an empty room to an equirectangular image. (So only the layout line will be present in the equirectangular image) The camera is located at the center and the final product…
greeksalad
  • 33
  • 3
-1
votes
1 answer

Is it possible point cloud to triangulation mesh from c#?

Is it possible to convert incoming point cloud data from Unity into a triangle mesh form? I’d like to achieve this quickly and easily, but it seems like there’s not much available information on this. I’m looking for a way to simplify the process,…
찌눈이
  • 3
  • 2
-1
votes
2 answers

Line-Laser --> data saving

I have a line laser I am connecting to. I am new and going off examples to try to get it to work. Currently, the sensor has variable "aLine" (float) of 1x2048 of data in a while loop To save reading time I am adding the snippets of code here.…
gup08
  • 35
  • 4
-1
votes
1 answer

Visual SLAM on Android Device using single-frame Pointclouds

I have developed a Python application that uses the Intel RealSense D455 camera and the library open3d to perform realtime and, later, slower high definition 3d reconstruction. The algorithm used to achieve this is SLAM. Now, I'm looking everywhere…
vittoema96
  • 121
  • 1
  • 1
  • 6
-1
votes
1 answer

How to calculate the distance from a point to the boundary of a six-dimensional point cloud?

Suppose I have a six-dimensional point cloud D, it has only one cluster and no noise, and its density is uneven. Given an examination point C, how to calculate the distance from C to the boundary of D? This is easy when C is outside the point cloud…
Lucy Don
  • 1
-1
votes
1 answer

How do i convert a las file into a txt (or csv) file in python?

As the title suggested, how can i convert a .las file in a .txt or .csv file? Does laspy library do that? Someone suggested to use pdal (.LAS into a .CSV file using python) but it is not clear how to do that
Sbobby
  • 33
  • 7
-1
votes
1 answer

Is there a way to merge point clouds attributes in python?

I have two point clouds (.las file). The coordinates of points (x, y,z) are the same in both the data, but one dataset has intensity attribute, while the other one has classification attribute only. I would like to merge these information, and…
Sbobby
  • 33
  • 7
-1
votes
1 answer

Store a pointcloud 3D tileset to a sqlite databse

I have created a tileset from a LAS point cloud. It contains a main Data folder with many subfolders and a tileset.json descriptor file. The pointcloud data is stored in .pnts files. I can load and display this data using cesium.js. My pointcloud…
Dusan
  • 3,284
  • 6
  • 25
  • 46
-1
votes
1 answer

projecting nodes on circumference divided into 36 parts

I am working on a task in which I have to project nodes (X and Y coordinates) of a point cloud to the circumference located exactly on the centre of gravity of the mesh (Geometry). My question is how can I create a circumference on the geometry and…
Urvish
  • 1
  • 1
-1
votes
1 answer

How can I upsample/dense my point cloud patches?

I am working on the preparation of training data for point cloud segmentation. I generated nearly 4000 point cloud patches by cropping them with footprints. Since the size of footprints is variable, my patches have different amounts of points. Some…
Güray Çetin
  • 1
  • 1
-1
votes
1 answer

Is there a way to plot the ''true'' coordinates on the x and y axis using lidR package

I want to plot a pointcloud in R using the lidR package. When I plot a pointcloud it automatically uses x and y axis values where the coordinates have been normalized starting from 0, I want to see the actual coordinates from the attribute of the…
N_LLC
  • 109
  • 2
1 2 3
…
89 90