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Questions tagged [camera-depth-points]

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How to set up depth camera to do obstacle avoidance in navigation2

I follow the navigation2 docsnavigation2 docs and add a depth camera to my gazebo model, the depth camera works fine until I configure the pointcloud from depth camera to do obstacle avoidance. There ...
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KinectV2 with ROS2 Humble

I'm trying to use KinectV2 with ROS2 Humble, in all the research I've done there's no further information than in WIP codes that didn't help me a lot. I need depth data and point cloud info for ...
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realsense pointcloud

Hello. I am using a realsense camera. I have a question. Whether it is possible to filter the cloud of points obtained and depth image? Originally posted by Splinter1984 on ROS Answers with karma: 11 ...
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What is a depth image?

What is a depth image? Does it require a special hardware? Can I get depth image from an inbuilt webcam? Originally posted by Rai on ROS Answers with karma: 30 on 2017-03-13 Post score: 0
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Difference between depth point cloud and image depth (in their usage)

Hello, I have recently started doing image processing with the Kinect v2 (with opencv) and I was thinking of adding the third dimension to this processing, but I have a basic question about the usage ...
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Subscribing to depth information from zed camera

I am trying to write a subscriber to obtain the depth information from a zed camera. I have written the following .cpp code: ...
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Is this the right way to obtain depth information?

Hello, I am trying to find the closest object to a zed camera. I am using the package: zed_wrapper. I need to find the depth (z value) of each pixel in the scene. My understanding is that the topic: /...
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How can I get 3D depth points distance?

Hi there! I'm trying to get the depth points distance from 3D sensor (Action Pro). I already got message sensor_msgs/Image from topic /camera/depth/image_raw. and I play with sensor_msgs/Image->...
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depthimage_to_laserscan Asus xtion, Use centre pixels?

I would like to set my depth camera to use the centre pixels for the laser scan as the scan currently uses the bottom pixels so I have to tilt the camera which is causing inaccurate depth ...
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1 answer
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Understanding /camera/depth/points

What does the value in the 'data' field of the data published by /camera/depth/points represent? They are supposed to represent the distance of every pixel from the Kinect center point? How to I ...
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1 answer
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PCL Header to Sensor_msg convertion problem

Guys, I have this code snippet (I wrote it): ...
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1 answer
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How to get coordinates from depthImage

Hi I am working with depthImages. This is my first time with camera models, so I do not understand how to get the information I need from camera_info topic. My inputs are a CameraInfo and a Image(...
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Using Senz3d with depthimage_to_laserscan

Hi everyone, I'm using Senz3d to get depthimage data, and I would like to use this depthimage data with package depthimage_to_laserscan. But when I run this data with depthimage_to_laserscan package, ...
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rgbdslam depth data using asus xtion PRO

is the data obtained from asus xtion pro using rgbdslam in meters?? i kept the object against a wall whch is 3m away, But i am not able to make sense of the depth values for the scene in the PCD file, ...
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1 answer
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Install Point cloud library in Ubuntu ARM ROS Groovy

Hi all, I wan to use the point cloud in ros groovy for Ubuntu ARM, I think I will build manually from source code because it is still not supported,just only has source code. So Is there any one build ...
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Error with rosbag record

When I try to record any topic with rosbag, such as: rosbag record /camera/depth/points I get this error: ...
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point cloud produces meaningless data

I'm trying to save the data that my TurtleBot sees when PointCloud2 is turned on. To do this I call 'rostopic echo /camera/depth/points > points.txt' but when I view the data it looks like the ...
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