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Questions tagged [stere-image-proc]

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why does the maps gets elevated while mapping using stereo camera and rtabmap in gazebo world?

I am doing the visual SLAM using stereo camera in gazebo world. I am using stereo_image_proc and rtabmap_slam package. The problem I am facing is the map gets elevated after a certain time and I get ...
RAKESH YADAV's user avatar
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left/camera_info, left/image_raw and right of them not published

I use an OAK-D Pro W camera for ORB-SLAM3 on Ubuntu 20.04 inside WSL 2 (Windows 11). I run the following command ...
Naoto YAMADA's user avatar
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converting DisparityImage message to PointCloud2

Hi, I want to convert a DisparityImage message to a PointCloud2 messages such that each pixel disparity value is now a x, y, z ...
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1 answer
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How to create disparity images with ueye_cam and nodelets

Hi there, I'm currently trying to get a disparity image out of a pair of externally triggered UEye cameras from IDS. I'm using nodelets instead of nodes to avoid overhead and desynchronization caused ...
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sync between disparity image and rectified image

Hi, I'm running stereo_image_proc to get rectified images as well as disparity images. And then I have a bunch of processing nodes that work with these. For a ...
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1 answer
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Latency between nodelets

Dear all, I have implemented stereo_image_proc with customized algorithms. Now I am trying to measure the latency in the pipeline. I have observed that each nodelet has inconsistency latency ranging ...
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1 answer
56 views

How to flip a Camera image upside down?

Hi. I'm using V-REP to generate a simulated environment for a robot to function in, and have two vision sensors being used as stereo cameras to be sent to ROS. Annoyingly, when I send the data from V-...
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1 answer
8 views

No disparity from connected and synced stereo images (stereo_image_proc)

Hi I'm running some sensors on a system with Ubuntu 14.04 and Indigo. I use two Prosilica 1350 in a stereo setup with a resolution of 1360x1024. The cameras are calibrated with cameracalibrator.py and ...
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how to publish camera_info manually

I have a rosbag file which publishes the stereo images (left_image and right_image) but there is no camera_info attached to it.I want use the stereo_image_process packagelink text to get the point ...
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1 answer
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How to use good parameter in rtabmap_ros (stereo_mapping.launch)

I get good parameter on rqt_reconfig this dont have speckle but when roslaunch rtabmap_ros stereo_mapping.launch stereo_namespace:="/stereo_camera" rtabmap_args:="--delete_db_on_start&...
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rtabmap_ros loop closure rejection when doing tutorial

I am using ros indigo in ubuntu 14.04 when i am running the stereo outdoor tutorial in rtabmap_ros with Stereo_outdoorB.bag file ...
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stereo_image_proc pointcloud extremely low frequency

Hello, I have a stereo vision system. Therefore, I'm using stereo_image_proc to get the rectified images as well as the pointcloud. As far as the rectified images, I get them at the same frequency as ...
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image_view stereo_view do not show image or disparity

I have been trying to view my stereo disparity image using image_view stereo_view but whenever i run it i get two blank left and right windows with the following ...
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1 answer
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pointcloud2 problem

I know that there are lots of question on his topic but after going through most of them i was not able to find solution for my problem I am using stereo_image_proc...
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2 answers
19 views

completely black rectified images (Kind of solve....?)

Hello, I just got a couple of cameras for stereo vision. I calibrated them with camera_calibration. I got the ost.txt file which looks like this: ...
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1 answer
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stereo_image_proc rectified and depth image issues

I'm currently using ROS Indigo with Ubuntu 14.04 and am trying to use stereo_image_proc to create an RGB point cloud using a ZED stereo camera. I am currently able to see both the left and right raw ...
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1 answer
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image_rect cropped?

I am having an issue where my image_rect output from stereo)image_proc is being cropped way down to a small section of the center/far right of the image_raw topic. As far as I can tell, I am not ...
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25 views

Getting point cloud from image_rect_color using stereo_image_proc

I have a bag publishing left and right camera_info and image_rect_color topics. How can I use stereo_image_proc to get the point cloud? stereo_image_proc/disparity nodelet subscribes to image_rect and ...
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launch stereo_image_proc and image topic names

Hello all; I have a bag with stereo images topics and I am trying now to create a launch for stereo_image_proc. The topics I have to perform stereo are: ...
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1 answer
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No image_rect after remapping and rtabmap not publishing map data

Hello everybody, I use ROS Hydro for several week now and I need some help. I am trying to build a map with stereovision. To do that, I am working with stereo_image_proc and rtabmap_ros. I used this ...
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How to improve terrible stereo_image_proc quality

Are there any other documented techniques for improving the quality of the disparity image generated by stereo_image_proc aside from what's documented in the wiki? Following the tutorial, I spent ...
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1 answer
10 views

How to reset stereo_image_proc?

I was following the stereo parameter tutorial when stereo_image_proc suddenly crashed and would not restart. When I try to restart it, I get the error: ...
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1 answer
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What are the parameter naming conventions for packages?

How do you determine the correct parameter names to send to a node? I've noticed some variability in naming conventions around package parameters. Specifically, I'm trying to use stereo_image_proc and ...
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How to use nodelets on ubuntu 14.04 ros indigo and packages hector-quadrotor-pose-estimation,ros-indigo-camera1394 or ros-indigo-stereo-image-proc

Hello, I've used nodelets on ubuntu 12.04 and ros hydro without any problems. After updating ubuntu and ros some files seem to be missing. For example, when I try to use the ...
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1 answer
6 views

disparity image generation using prosilsica camera pair

i have used two prosilica cameras. first i have launched the driver for both the cameras. left driver and right driver. once both the cameras are working i have launched the node stereo_image_proc for ...
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1 answer
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Stereo triangulation of points

Hello! I need to reconstruct 3d position of a tennis ball by using a stereo camera. I am detecting the ball center positons in the rectified images and pass them to the cv::triangulatePoints(P1, P2, ...
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1 answer
7 views

Point Cloud transformation error

Hello, I am using stereo_image_proc to process data coming from a stereo system. When trying to visualize it in RVIZ I came across to the following issue: The point cloud (pointcloud2 and pointcloud ...
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1 answer
3 views

Depth map from bumblebee2 camera?

Hi, I am trying to get the coordinates in space (X,Y,Z) of an object. For this, I am detecting the object using the image from the bumblebee's left camera (from here I can obtain the X and Y ...
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1 answer
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how to use stereo_image_proc.launch

hello everyone,when i roslaunch stereo_image_proc stereo_image_proc. launch.... logging to /home/administrator/.ros/log/382adbce-609e-11e3-acbd-e89a8ff90e16/roslaunch-ubuntu-11072.log Checking log ...
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1 answer
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stereo_image_proc error in hydro - error while loading shared libraries: libimage_proc.so

Hi, I'm using DRCSim on hydro and when roslaunching atlas.launch this error appears: ...
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1 answer
6 views

Strange distortion in rectified image (stereo_image_proc)

Hi all, I'm new here (and new to ROS), so let me know if I'm doing anything wrong. Our underwater submarine team is having some difficulty getting stereo_image_proc to produce any stereo information. ...
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1 answer
8 views

What is subpixel matching precision for stereo?

Hello, I'm trying to figure out what the subpixel stereo matching precision is in stereo_image_proc (that is, how many pixels/subpixels of disparity can the stereo matching algorithm resolve). I ...
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1 answer
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Can the maximum stereo disparity of 128 be increased?

Hello, I have built a high-resolution stereo camera (two Prosilica GC2450-C cameras running at full-res), and I'm obtaining beautiful point-clouds that require both min_disparity and disparity_range ...
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1 answer
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Potential data loss with stereo_image_proc

Hello, I have been messing around with the point clouds generated by stereo_image_proc for the bumblebee2 for a little bit now. I have just applied the toROSMsg command to convert my point clouds to ...
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1 answer
6 views

Stereo Vision Distance from Disparity Accuracy Measurement Testing

Hi, SO I have successfully managed to calibrate my two stereo cameras and thery are running the stereo_image_proc. I am able to view the disparity image stream generated using the image_view node. ...
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1 answer
2 views

viso2_ros demo.launch

Hi all, I'm trying out viso2_ros (http://www.ros.org/wiki/viso2_ros?distro=fuerte) by running the demo.launch file that was included. However, it requires a disparity_params.yaml for the ...
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1 answer
15 views

Rectification matrix clarification in stereo vision calibration

I have a Point Grey Bumblebee2 that I am trying to integrate into ROS and I am using the camera1394stereo node to read raw images from both cameras. I have calibrated both cameras by hand and am ...
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1 answer
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stereo_image_proc/processor.h: No such file or directory

On Groovy, I get this error when compiling a project, using catkin_make, that uses stereo_image_proc. I went to /opt/ros/groovy/include/stereo_image_proc, and indeed, it only contains one file: ...
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1 answer
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Translating coordinate frames? Or RGBDSLAM axis orientation?

The short version of my question is: what's the easiest way to invert one axis of a point cloud (pointcloud2)? I.E. change every point from (x,y,z) to (x,y,-z). My longer question is this: do I ...
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1 answer
9 views

Distorted images after camera calibration+stereo_image_proc

Hello everyone! This question might not be specific to ROS, but I decided to give it a try anyway. I am using stereo_image_proc to rectify my camera's image output and produce the corresponding ...
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1 answer
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Where is wide.launch in stereo_image_proc package?

I followed Stereo Processing in Simulation. I run: roslaunch gazebo_worlds simple_world.launch roslaunch pr2_gazebo pr2.launch Then I run: ...
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2 answers
4 views

stereo_proc NO subscription so NO stereo_images

Hi everybody I was wondering if someone has ever seen something like that. I'm using two uEye USB camera with a personnal arduino trigger. Everything works fine. The calibration setup is OK. But when ...
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1 answer
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How to compute disparity on a specific region of interest only?

Is is possible, using stereo_image_proc, to compute disparities on a specific region of interest only? The setup is as follow: we detect a color blob in an image we use stereo to determine its 3d ...
Thomas Moulard's user avatar
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1 answer
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gazebo and stereo_image_proc

I know that a tutorial is in the works, but I was just hoping that somehow maybe I could get stereo_image_proc to work with the camera. So far I have been able to get the individual camera up and ...
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2 answers
4 views

Proper Sequence for Getting Disparity Map from GPU

Hello, I'm trying to write a GPU implementation of stereo_image_proc and am having some trouble getting a proper disparity map from my GPU. What I'm wondering is if I missed a filtering step. The ...
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2 answers
4 views

Replacing camera_info messages

Is there any easy way to replace the camera_info messages stored in a bag file. In particular when using either the image_proc or stereo_image_proc nodes. Originally posted by Hordur on ROS Answers ...
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2 answers
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proliferation of dynamic_reconfigure servers due to image_proc or image_transport

Hi- I've noticed recently that it has become increasingly difficult to make use of the dynamic reconfigure gui because there are too many servers in the dropdown list. It seems now every image ...
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1 answer
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stereo_image_proc : Assertion `left_.fx() == right_.fx()'

I am trying to get stereo_image_proc running. I have two externally triggered Prosilica GC655C cameras. The camera drivers are working, so I can retrieve single image views without any problem. ...
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1 answer
1 view

ROS Answers SE migration: face detector

Hi, I'm trying to use face detector on care-o-bot3, for this I activate ROS (DB) using roscore, bring up the robot including a pair of prosilica camera (stereo) and then run face detector. It's ...
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1 answer
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No disparity image with rotating detergent

Hi, I am following the ChoosingGoodStereoParameters tutorial and receiving some errors. At the end, all three image viewers (left, right, disparity) have blank images. How do I get the bag file to ...
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