Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [point-cloud]

The tag has no usage guidance.

2
votes
1answer
27 views

how to find space in point cloud larger than given l*b

Is their any method by using which I can find a space or gap in given point cloud which has size greater than given rectangle of size $l*b$ or a circle of radius $r$? This way my robot can make a path ...
0
votes
1answer
44 views

Relation between GraphSLAM and Iterative closest Point algorithm

I have lots of doubts about GraphSLAM, The GraphSLAM Algorithm with Applications to Large-Scale Mapping of Urban Structures. When I practically implement it I get matrix singularity error. I taken ...
0
votes
0answers
12 views

what are the meanings of normals in the gicp_demo?

I am quite new to G2O ICP. One of the example codes gicp_demo.cpp has these 'normals' that I could not understand. ...
3
votes
4answers
1k views

3D mapping using only a 2D Lidar

How can I map a 3D environment using only a 2D lidar? The lidar would be hand held and it would have 6 DoF. So if I move it in arbitrary motion in all 6DoF, I expect my algorithm to generate a 3D map ...
3
votes
1answer
202 views

ROS PCL: Help with Moving Least Squares filter

I'm trying to implement a simple ROS node to perform Moving Least Squares filtering on a sensor_msgs/PointCloud2 topic. I'm following this PCL tutorial, which uses ...
1
vote
1answer
107 views

Methods for odometry/IMU/Gyro free lidar pointcloud registration for pose estimation

I am currently trying to register a pointcloud in time to find my change in position and heading at each timestep (High speed application). So this is essentially an implementation of SLAM. I am ...
3
votes
3answers
318 views

Iterative Closest Point for 2-D LIDAR Data

I have two 2-D point clouds obtained from LIDAR (Light Detection And Ranging) scans at two different poses (positions and orientations) inside a circular structure, where a small object (vertical ...
1
vote
1answer
368 views

Forward monocular stereo vision (Structure from Motion)

I am looking for a library (or algorithm) that computes 3D scene (point cloud) from 2 consecutive images of a monocular sequence. I mean something like OpenSfM but only for 2 consecutive frames and ...
2
votes
1answer
104 views

Calibrating a laser scanner to a line camera

We have a high-resolution Riegl laser scanner and mounted atop it a Resonon Pika L, which is a hyperspectral camera which records one spatial column at a time, using the second dimension of the sensor ...
6
votes
2answers
595 views

Transforming Point Cloud to get Top Down Image [closed]

My task: I have a task where I am asked to track parcels(carton boxes) of different dimensions moving on a conveyor. I am using Asus Xtion pro camera mounted on top of a conveyor in any inclined ...