I am using [this usb_camera](https://www.aliexpress.com/item/2MP-CMOS-OV2710-High-30-60-120-fps-Industrial-Mini-1-05mm-Wide-angle-fisheye-lens/32727795207.html?spm=2114.search0104.3.21.722c46e5Zy4PUx&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10151_10065_10344_10068_10342_10343_5722611_10340_10341_10696_5722911_5722811_5722711_10084_10083_10618_10307_10059_100031_10103_10624_10623_10622_10621_10620_5722511,searchweb201603_11,ppcSwitch_5&algo_expid=1fe968f7-f35e-435a-8cae-9b3de4480f2b-3&algo_pvid=1fe968f7-f35e-435a-8cae-9b3de4480f2b&priceBeautifyAB=0). I want to use the frame rate 120FPS `640x480`.
I passed the parameter `` in launch file. But when i check the average rate of topic `rostopic hz usb_cam/image_raw . its showing 30HZ only. Actually it should be 120 !!!
I also try hardcoding the `ros::Rate` to 120, but is doesn't effect the output of average rate.
bool spin(){
ros::Rate loop_rate(this -> framerate_);
while (node_.ok())
{
if (cam_.is_capturing()) {
if (!take_and_send_image()) ROS_WARN("USB camera did not respond in time.");
}
//ROS_INFO("framerate_ '%i'", framerate_ );
ros::spinOnce();
loop_rate.sleep();
}
return true; }
Are there any restrictions on increasing the framerate above 30FPS. When I change the frame rate below 30 is show the changes but not above the 30FPS.
My usb_cam launch file parameters are as:
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how to set framerate of usb_cam above 30FPS?
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Problem with usb_cam in melodic using laptop integrated camera
I installed ros, usb_cam successfully however when I run the command:> rosrun usb-cam usb-cam-node
I get the following error:
[ INFO] [1532657507.128646432]: using default calibration URL [ INFO]
[1532657507.129513301]: camera calibration URL:
file:///home/pedro/.ros/camera_info/head_camera.yaml
[ INFO] [1532657507.129663131]: Unable
to open camera calibration file
[/home/pedro/.ros/camera_info/head_camera.yaml]
[ WARN] [1532657507.129701080]: Camera
calibration file
/home/pedro/.ros/camera_info/head_camera.yaml
not found. [ INFO]
[1532657507.129746222]: Starting
'head_camera' (/dev/video0) at 640x480
via mmap (mjpeg) at 30 FPS [ WARN]
[1532657507.864252000]: unknown
control 'focus_auto'
> [ERROR] [1532657507.943121832]: outbuf> size mismatch. pic_size: 1843200> bufsize: 614400
↧
↧
Why can't I install usb-cam package at RPI3?
Hello,
I have installed Raspbian Stretch at my RPi3 and the ros_comm for the ROS Kinetic package (since it was the recommended one from the ros wiki). However, when I try to install any package the message I receive is "E: unable to locate package" . For example, I type at the terminal "sudo apt-get install ros-kinetic-usb-cam" and the message I receive is the above. Any suggestions about what I am doing wrong?
----------
Update:
I have followed the instructions from [this site](https://wiki.ros.org/ROSberryPi/Installing%20ROS%20Kinetic%20on%20the%20Raspberry%20Pi):
$ rosinstall_generator ros_comm --rosdistro kinetic --deps --wet-only --tar > kinetic-ros_comm-wet.rosinstall
$ wstool init src kinetic-ros_comm-wet.rosinstall
↧
focus setting in usb_cam
When I try to use `usb_cam` to control uvc camera, setting the "focus" parameter in the launch file, it seems to have no effect on my image result. But it does have effects when I change the "image_height" or "image_width" parameters. why did it happen?
Here is my lanuch file code:
↧
usb_cam package and head_camera.yaml missing
Hello,
I am new to ROS. I have been trying to do usb camera integration into a robotics project at our university's lab.
I will write the steps i did and the errors that i got.
1. I went into my ~/catkin_ws/src folder and i ran
git clone https://github.com/bosch-ros-pkg/usb_cam
2. Then I went into my ~/catkin_ws folder and ran
source /devel/setup.bash
3. Then I ran
roscore
4. Then I ran
roslaunch usb_cam usb_cam-test.launch
5. This was the output
... logging to /home/submetu/.ros/log/1fd73732-55ad-11e6-a65d-d8fc93edb7dc/roslaunch-submetu-9724.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
started roslaunch server http://submetu:40095/
SUMMARY
========
PARAMETERS
* /image_view/autosize: True
* /rosdistro: kinetic
* /rosversion: 1.12.2
* /usb_cam/camera_frame_id: usb_cam
* /usb_cam/image_height: 480
* /usb_cam/image_width: 640
* /usb_cam/io_method: mmap
* /usb_cam/pixel_format: yuyv
* /usb_cam/video_device: /dev/video0
NODES
/
image_view (image_view/image_view)
usb_cam (usb_cam/usb_cam_node)
ROS_MASTER_URI=http://localhost:11311
core service [/rosout] found
process[usb_cam-1]: started with pid [9742]
ERROR: cannot launch node of type [image_view/image_view]: can't locate node [image_view] in package [image_view]
[ INFO] [1469813059.142822397]: using default calibration URL
[ INFO] [1469813059.142904972]: camera calibration URL: file:///home/submetu/.ros/camera_info/head_camera.yaml
[ INFO] [1469813059.142970068]: Unable to open camera calibration file [/home/submetu/.ros/camera_info/head_camera.yaml]
[ WARN] [1469813059.142995991]: Camera calibration file /home/submetu/.ros/camera_info/head_camera.yaml not found.
[ INFO] [1469813059.143027047]: Starting 'head_camera' (/dev/video0) at 640x480 via mmap (yuyv) at 30 FPS
[ERROR] [1469813064.141746901]: VIDIOC_S_FMT error 5, Input/output error
terminate called after throwing an instance of 'boost::exception_detail::clone_impl>'
what(): boost: mutex lock failed in pthread_mutex_lock: Invalid argument
[usb_cam-1] process has died [pid 9742, exit code -6, cmd /home/submetu/catkin_ws/devel/lib/usb_cam/usb_cam_node __name:=usb_cam __log:=/home/submetu/.ros/log/1fd73732-55ad-11e6-a65d-d8fc93edb7dc/usb_cam-1.log].
log file: /home/submetu/.ros/log/1fd73732-55ad-11e6-a65d-d8fc93edb7dc/usb_cam-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete
done
I tried the tutorial of http://wiki.ros.org/camera_calibration , but I am not getting any camera output because the above error comes everytime. So I cant calibrate i.e. i cant get the head_camera.yaml file.
I looked at many tutorials but I could not find anything helpful to me.
Please help :(
Thank you in advance
(im using a lenovo thinkpad e440 with ubuntu. My camera is a logitech camera(it is connected as cheese is giving video output))
↧
↧
USB_CAM error : Input/output error
Hi,
I want to use web-camera(Logicool Webcam C210)
I use usb-cam package,but I cannnot see the web-camera view.
My launch file is below,
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USB_CAM error with low resolution on RaspiCam
Hi Guys,
When trying to run the USB_CAM with a **raspberry pi cam** connected with a **flex cable** I am getting the following error:
***[ERROR] [1536479863.709252536]: VIDIOC_S_FMT error 22, Invalid argument***
This is the launch file:
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Input/output error using usb_cam package
Hi,
I am trying to use ```usb_cam``` package to connect a *Logitech* usb camera from my laptop. I am using ROS ```kinetic``` with ```Ubuntu 16.04```. I successfully built the package using ```catkin_make```. Then when I run the ```usb_cam_node``` node using
```$ rosrun usb_cam usb_cam_node```
from the terminal I receive the following **input-output** error,
```VIDIOC_STREAMON error 5, Input/output error```.
Any help to overcome this error is appreciated.
Thank you.
↧
[image_transport] Topics '/usb_cam/image_color' and '/usb_cam/camera_info' do not appear to be synchronized
please help me :(
$ rosrun image_transport republish compressed in:=usb_cam/image raw out:=usb_cam/image
$ ROS_NAMESPACE=usb_cam rosrun image_proc image_proc image_raw:=image _approximate_s=true _queue_size:=20
[ WARN] [1545066099.656226554]: [image_transport] Topics '/usb_cam/image_color' and '/usb_cam/camera_info' do not appear to be synchronized. In the last 10s:
Image messages received: 0
CameraInfo messages received: 45
Synchronized pairs: 0
↧
↧
Not detecting raspberry pi camera
I am doing a project in which I have to use a usb camera and the raspberry pi camera. Therefore, I installed first the usb_cam package and tried to make a web streaming with the rasbperry pi camera. However, the raspberry cam was not detected as a /dev/video device so I execute the following commands to detect the pi camera as a /dev/video device: sudo rpi-update and sudo modprobe bcm2835-v4l2. Once it was detected as a /dev/video device, I used the usb_cam and web_server package to make the stream, everything worked perfectly until I installed the raspicam_node. Now it is impossible to detect /dev/video0. I would be really grateful if someone would help me.
↧
Problems when relaunching camera
First time after starting PC I can launch camera by:> roslaunch usb_cam usb_cam-test.launch
However after closing it, using ctrl+c in the terminal and running again I get following error:
> [ERROR] [1548665838.684033928]:> VIDIOC_S_FMT error 5, Input/output> error [usb_cam-1] process has died> [pid 7194, exit code 1, cmd> /opt/ros/kinetic/lib/usb_cam/usb_cam_node> __name:=usb_cam __log:=/home/nuvo/.ros/log/a60e58e0-22c3-11e9-8944-f81a670f7983/usb_cam-1.log].> log file:> /home/nuvo/.ros/log/a60e58e0-22c3-11e9-8944-f81a670f7983/usb_cam-1*.log
↧
opencv video_stream crash for webcam
Hi,
Im using ROS kinetic with ubuntu 16
I tried to run the following:
sudo apt-get install ros-kinetic-video-stream-opencv
source devel/setup.bash
roslaunch video_stream_opencv webcam.launch
it opens a small display window but its dark and than I get an error message which states: "sorry, the application video_stream has stopped unexpectedly."
on the command prompt there's the following output:
... logging to /home/tester/.ros/log/7c3f439c-215d-11e9-93d6-a434d94983a6/roslaunch-tester-XPS-13-9350-20451.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
started roslaunch server http://tester-XPS-13-9350:44108/
SUMMARY
PARAMETERS
* /rosdistro: kinetic
* /rosversion: 1.12.12
* /webcam/webcam_stream/buffer_queue_size: 1
* /webcam/webcam_stream/camera_info_url:
* /webcam/webcam_stream/camera_name: webcam
* /webcam/webcam_stream/flip_horizontal: False
* /webcam/webcam_stream/flip_vertical: False
* /webcam/webcam_stream/fps: 30.0
* /webcam/webcam_stream/frame_id: webcam_optical_frame
* /webcam/webcam_stream/height: 0
* /webcam/webcam_stream/loop_videofile: False
* /webcam/webcam_stream/set_camera_fps: 30.0
* /webcam/webcam_stream/video_stream_provider: 0
* /webcam/webcam_stream/width: 0
NODES
/webcam/
webcam_image_view (image_view/image_view)
webcam_stream (video_stream_opencv/video_stream)
ROS_MASTER_URI=http://localhost:11311
process[webcam/webcam_stream-1]: started with pid [20468]
process[webcam/webcam_image_view-2]: started with pid [20469]
[ INFO] [1548701307.750201298]: Resource video_stream_provider: 0
[ INFO] [1548701307.750265122]: Getting video from provider: /dev/video0
[ INFO] [1548701307.969115605]: Video stream provider type detected: videodevice
[ INFO] [1548701307.972647577]: Camera name: webcam
[ INFO] [1548701307.975877216]: Setting camera FPS to: 30
[ INFO] [1548701307.979017728]: Camera reports FPS: 30
[ INFO] [1548701307.983787903]: Setting buffer size for capturing frames to: 1
[ INFO] [1548701307.988602391]: Throttling to fps: 30
[ INFO] [1548701307.991712224]: Publishing with frame_id: webcam_optical_frame
[ INFO] [1548701307.994771983]: Provided camera_info_url: ''
[ INFO] [1548701307.998538313]: Flip horizontal image is: false
[ INFO] [1548701308.002029133]: Flip vertical image is: false
[ INFO] [1548701308.015348365]: using default calibration URL
[ INFO] [1548701308.015553150]: camera calibration URL: file:///home/tester/.ros/camera_info/webcam.yaml
[ INFO] [1548701308.015712941]: Unable to open camera calibration file [/home/tester/.ros/camera_info/webcam.yaml]
[ WARN] [1548701308.015782408]: Camera calibration file /home/tester/.ros/camera_info/webcam.yaml not found.
[ INFO] [1548701308.015847803]: Opened the stream, starting to publish.
[ WARN] [1548701308.616463773]: No calibration file given, publishing a reasonable default camera info.
[ INFO] [1548701308.616540568]: The image width is: 640
[ INFO] [1548701308.616565884]: The image height is: 480
[webcam/webcam_stream-1] process has died [pid 20468, exit code -11, cmd /opt/ros/kinetic/lib/video_stream_opencv/video_stream camera:=image_raw __name:=webcam_stream __log:=/home/tester/.ros/log/7c3f439c-215d-11e9-93d6-a434d94983a6/webcam-webcam_stream-1.log].
log file: /home/tester/.ros/log/7c3f439c-215d-11e9-93d6-a434d94983a6/webcam-webcam_stream-1*.log
---------------------
What am I doing wrong and how do I solve this?
thank you!
↧
Input/output error using usb_cam
I am trying to use usb_cam package to connect a Logitech usb camera from my laptop. I am using ROS kinetic with Ubuntu 16.04. I successfully built the package using catkin_make. Then when I run the usb_cam_node node using
$ rosrun usb_cam usb_cam_node
from the terminal I receive the following input-output error,
VIDIOC_STREAMON error 5, Input/output error.
the solution post earlier on this forum, paste below didn't help, hence request you suggest a different solution
I solved the problem using video_device:=/dev/video1 of usb_cam_node. The problem happened because I have been using an external usb camera with my laptop which already had a built-in camera.
↧
↧
recording only header image_raw message
I would like to record using rosbag only the /usb_cam/image_raw/header topic excluding the data.
Tried:
rosbag record -a -x "/usb_cam1/image_raw/data"
But looks like it is not working. I have more topics to include than exclude so just checking for suggestions
↧
VIDIOC_S_FMT error 5 , Input/output error
Hello,
When i run the node usb_cam in ros kinetic under ubuntu 16.04 I have this error:
[ERROR] [1555322281.131759362]: VIDIOC_S_FMT error 5, Input/output error
[usb_cam-2] process has died [pid 18567, exit code 1, cmd /home/ubuntu/catkin_ws/devel/lib/usb_cam/usb_cam_node __name:=usb_cam __log:=/home/ubuntu/.ros/log/f0d32396-5f64-11e9-a083-b06ebfbf3825/usb_cam-2.log].
log file: /home/ubuntu/.ros/log/f0d32396-5f64-11e9-a083-b06ebfbf3825/usb_cam-2*.log
When I unplug the camera then re-plug it works just once then i have the same erros.
help me please
↧
How to use image_proc/crop_decimate to crop an image?
Hi,
I used usb_cam driver to publish a camera raw image, and I'm trying to crop the published image using image_proc/crop_decimate. when I viewed the output of image_proc/crop_decimate, I did not see any difference between the original image and the cropped image. it seems that the image_proc/crop_decimate node is bypassing the parameters of my launch file.
the size of the original image 640x480 and I want to crop the image to 640x300
This is my launch file script:
↧
Running usb_cam across VNC and getting Cannot identify '/dev/video0'
Hello guys, I was running a docker container that contains the normal ros packages and usb_cam. I visualized the ubuntu interface through a VNC (localhost:5900) and tried `roslaunch usb_cam usb_cam-test.launch` in the VNC viewer. However, I got:
[ERROR] [1559585420.922861365]: Cannot identify '/dev/video0': 2, No such file or directory
When I tried `ls -ltrh /dev/video*`, I got `ls: cannot access '/dev/video*': No such file or directory`.
Everything works when I tried the aboves on my local computer, are there any additional steps I need to make so I can use my webcam in a docker image?
↧
↧
usb_cam pkg gives garbled green screen
I have a ROS kinetic on my virtualbox. I tried to use "usb_cam" pkg but it doesn't work. My web cam is connected directly to my PC and I can see the video through "cheese" or "camorama" but when I run usb_cam pkg, I get garbled green screen both on "image_view" or directly on "rviz" for image_raw. I tried both yuyv and jpeg for pixel format but it doesn't work.
Any suggestions ?
↧