I need to work with asus xtion pro live to detect hand movements and objects. I am an amateur as far as it concerns programming this camera.
My problem is how to connect them and from where to start.
I work on Ubuntu 12.04. I've downloaded Ros fuerte and both Openni2 and OpenCV. When i plug the camera (usb port) and run the lsusb command, i see this:
"Bus 001 Device 003: ID 1d27:0601 "
Even when i run the command $ roslaunch openni_launch openni.launch
i get:
[ INFO] [1415717730.873978521]: No matching device found.... waiting for devices. Reason: openni_wrapper::OpenNIDevice::OpenNIDevice(xn::Context&, const xn::NodeInfo&, const xn::NodeInfo&, const xn::NodeInfo&, const xn::NodeInfo&) # /tmp/buildd/ros-fuerte-openni-camera-1.8.6/debian/ros-fuerte-openni-camera/opt/ros/fuerte/stacks/openni_camera/src/openni_device.cpp # 61 : creating depth generator failed. Reason: USB interface is not supported!
Can anyone please help? Is there a problem with the camera driver?
Thank you in advance.
you must go to a terminal and do
sudo nano /etc/openni/GlobalDefaults.ini
and there find UsbInterface and make sure it is not a comment (without ; at the beginning) and that is equal to 2
UsbInterface=2
I heard that this may give you problems with Kinect hardware (the same error you are getting now). But, if you use the Kinect later on and gives this problem, just comment it and it should work
;UsbInterface=2
You must reboot every time you change this value!!
I hope this works for you ;)
Related
I am using ubuntu16.04 and trying to run opencv script.
when i use:
video_capture = cv2.VideoCapture(-1)
it gives me error VIDEOIO ERROR: V4L: can't find camera device
No video window opens
But when i run
video_capture = cv2.VideoCapture('test.jpg')
It opens window shows the picture and close the window.
Please tell me why it is not streaming video directly from camera.
The suggestion api55 gave in his comment
video_capture = cv2.VideoCapture(0)
is what I would try first.
Generally, you can list the available cameras with ls /dev/video* or v4l2-ctl --list-devices. Here sample output:
NZXT-U:rt-trx> v4l2-ctl --list-devices
Microsoft® LifeCam Cinema(TM): (usb-0000:00:14.0-1):
/dev/video1
Microsoft® LifeCam Cinema(TM): (usb-0000:00:1a.0-1.3):
/dev/video0
/dev/video0 corresponds to device id 0, etc.
PS: v4l2-ctl is quite useful for solving camera issues and can do much more than --list-devices. I installed it via packagev4l-utils on a 16.04 machine.
Late, but to get mine working i put in terminal:
-ltrh /dev/video*
To get a list of the video devices that are plugged into my computer. Then for each one I did:
sudo chmod 777 /dev/videox
Where x was one of the video files that were listed, giving everything access to them. Probaly not the most secure solution, but it got my code working.
Hello Im trying to create initial flash/build for IoT development following this tutorial https://developer.android.com/things/hardware/imx7d.html#flashing_the_image
Im sorry if my questions is too broad, this is my first IoT attempt, but it seems to me like I have a wrong setup, beacuse Im constantly running into new errors.
Im stuck at step 2.4 Execute the flash-all.sh. Running
sudo ./flash-all.sh
I got this in my logs:
./flash-all.sh: line 52: ./u-boot.imx: Permission denied
If I change permissons
chmod 777 u-boot.imx
I got
./flash-all.sh: line 52: ./u-boot.imx: cannot execute binary file:
Exec format error
I already solved several other issues which werent described in tutorial, including
I have to run script as sudo, otherwise I got
< waiting for any device >
I had to rewrite fastboot command to $(which fastboot) inside flash-all.sh (same with flash and bootloader), otherwise commands are unknown even thought I added them to PATH
I am using
ubuntu 16.14,
android studio with installed sdk 26
Pico Pro Maker Kit with Pico i.MX7 Dual Development Board
What am I doing wrong?
I had to rewrite fastboot command to $(which fastboot) inside flash-all.sh (same with flash and bootloader), otherwise commands are unknown even thought I added them to PATH
This seems like it might be the root of the problem, as somehow the subsequent lines for each command are not being parsed as arguments for fastboot, but rather as their own executable commands.
You also shouldn't need to run the script with sudo. This might be why you can run which fastboot successfully (which would indicate it's in your PATH), but the script cannot see this.
Hi I have a BBB which is running on Angstrom 2013 image. For display purpose I am using a cape which is connected to gpio extensions. There is a Qt application running on BBB, which use to get displayed on the Cape.
How can I take screenshot of the cape.
I want to take some screen-shot of the running application.
I couldn't find gnome-screenshot on angstrom image, using import command to take screenshot I got an error regarding x11.
How can I get the screenshot?
You can try and install scrot
On Ubuntu based Beagle Bone Black, I installed it as follows:
sudo apt-get install scrot
To Capture a screenshot:
scrot -q 100 /home/debian/Desktop/Desktop.jpg
#-q 100 == best quality
# /home/debian/Desktop/Desktop.jpg is path where to store captured screenshot
For more information, you can read this tutorial here.
I have a physical box with QNX 6.3.0 installed. PS/2 mice and keyboard work fine. I'm trying to see if I can get a USB mouse going. What info I could find seemed to say I should start with:
usb -vvv
However, I get this:
$ usb
/bin/sh: usb: not found
Where's the usb utility supposed to be installed at, and why is it not found? Isn't it supposed to be a default utility?
I think you should try for :
cd /fs/usb0 In my case this usb0 is the desired name . you can change accordingly .
currently I am using Fedora 19 (since a few days) but the setup of Wi-Fi let me going crazy. I'm using the Realtek RTL 8192CU Wi-Fi-adapter usb-dongle. Fedora recognizes my network, I enter the right password and using the correct encryption option, but the system still asking for the password.
Does anyone has a solution for my problem?
Thanks for your help.
Run yum update to make sure your system is up to date. Run yum install #'Developer Tools' if you have not previously installed the GNU build tools.
Download the latest drivers from Realtek (Version 3.4.4_4749)
Download this patch.
Extract the driver. In the directory "driver," there is another zip, extract that as well. Finally put the patch in that folder.
CD into the zip you extracted from the command line and type:
patch -p1 < use_kthread_run.patch
Type make, followed by make install. Finally you need to run modprobe 8192cu. You may also want to blacklist the previous driver.
Check /var/log/messages for NetworkManager messages. You should see what is failing there.