Questions tagged [webcam]
A webcam is a device that records video and then uploads that video to a computer.
2
votes
1answer
94 views
how to increase fps for raspberry pi for object detection
I'm having low fps for real-time object detection on my raspberry pi
I trained the yolo-darkflow object detection on my own data set using my laptop running windows 10. When I tested the model for ...
0
votes
0answers
24 views
High CPU usage from PyGame with time.sleep
so I'm running a very rudimentary webcam surveillance program with PyGame, that just takes a picture from the webcam, stamps the time and saves it in an endless loop. (and does some simple date ...
0
votes
1answer
23 views
What happens if I force_turbo (and over_voltage) but do not increase ARM, etc
I have had issues with running RPI cam control and pikrell cam on Pi Zero W and found a post where it was recommended to use:
over_voltage=4
force_turbo=1
(https://www.raspberrypi.org/forums/...
0
votes
0answers
59 views
Tensorflow object detection script is being killed by system
I'm trying to run an object detection script using Tensorflow. After running the python script it's being killed or freezes. I can see camera's light is being turned on right before the script stops. ...
0
votes
0answers
111 views
Stream USB webcam with audio
I have a raspberry pi zero with a Logitech C920 webcam. I am hoping to do a video server (baby monitor) with these. I hope to use the H.264 encoding provided by the C920 and combine it with the audio ...
1
vote
0answers
51 views
Live video streaming over bluetooth
I'm currently making a little project, and i need my Raspberry Pi 3b to transmit an USB webcam stream trough Bluetooth to display to an Android smartphone or any other portable device (like another ...
1
vote
1answer
31 views
Only allow a specific peripheral to be connected to a USB port
I am turning my raspberry pi prototype device into a market product. The data and the program running on the pi must be protected. But we have a USB webcam attached to it (provided by us, hence we ...
1
vote
0answers
191 views
PS3 Eye USB Camera Not Detected - Raspbian Stretch
After updating to Raspbian Stretch (kernel 4.14.90-v7+), my Playstation 3 Eye camera is no longer detected on any of the three Pi3 Model Bs that I have. lsusb does not report the device and dmesg ...
1
vote
1answer
130 views
Raspberry Pi Zero as webcam
I read some case, like using dwc2 and g_webcam in /boot/config and cmdline. but hard to understand and doesn't work. and can't find a tutorial, there are some tutorials only about serial and ethernet.
...
0
votes
1answer
89 views
Octo print with Pi Cam works fine, added webcam but can't find the Pi cam any more
I've been using my raspberry pi cam module wonderfully for a while and it's attached to the corner of my print bed so I can monitor the first few layers and general build. I want to add a webcam to do ...
2
votes
1answer
446 views
USB cam with raspberry pi 3: achieving maximum FPS
I am using a ub camera with raspberry pi. When I run v4l2-ctl --list-formats-xext, I get the max FPS is 15 with resolution of 2592x1944.
However when I run
ffmpeg -t 5 -f v4l2 -framerate 15 -...
1
vote
0answers
675 views
PS3 eye's 4ch microphone with the Raspberry Pi
Recently I have been trying to get the 4ch microphone on the sony playstation 3 eye to work with my Raspberry Pi 3B (running the latest OS of raspian-stretch to date (2018-06-27 version) as a part of ...
1
vote
1answer
724 views
Raspbian Stretch C920 webcam driver LED control regression?
In a previous Stack Overflow post (April 16th 2018), Raspberry Pi : use VLC to stream webcam : Logitech C920 [H264 Video without transcoding + Audio + LED control], I described how to use the Pi + ...
0
votes
0answers
511 views
UV4L & USB Webcam - How to change Resolution, FPS etc?
I've been using UV4L for streaming for quite a while now and think it does a brilliant job, especially with the PiCamera 2 module.
I now want to use the program with a USB Webcam as a few days ago I ...
0
votes
1answer
382 views
QCamera get error “mesa-loader failed to retrieve device information”
Qt test code:
QCamera* camera = new QCamera;
auto viewfinder = new QCameraViewfinder();
camera->setViewfinder(viewfinder);
viewfinder->show();
camera->start();
Output:
mesa-loader failed ...
0
votes
1answer
54 views
Raspberry PI2 under voltage with a standard microsoft webcam connected.
I am attempted to setup my octopi IOS to connect to my 3d printer. I've got everything connected and configured however, noticed during the boot process, when the USB webcam is connected, i get the ...
0
votes
0answers
248 views
Webcam feed is very slow
I'm using this code to calibrate stereo vision using two Logitech c270 webcams and Raspberry pi 3 model B.
My problem is webcam feeds shown by openCV are very slow and even not responding sometimes. ...
0
votes
0answers
221 views
Raspberry Pi 3 USB Microphone shows up in lsusb but not asound
I am trying to record audio using a microphone on a Logitech C270 webcam. I have had this working but it seems to have stopped working I presume either because I have since rebooted the RPi or because ...
0
votes
1answer
216 views
Barcode Scanning Raspberry PI
I want be able to scan barcodes using my raspberry pi 3, there are serveral barcode scanner/modules, but these are quite expensive. Would it be a option to use a webcam and use maybe a API which reads ...
0
votes
1answer
126 views
Unable to connect access IP webcam
I'm trying to access my phone camera using IP Webcam android app. I'm programming Pi using my laptop via Remote Desktop Connection with a static IP set for Pi. Also I tried to stream webcam from Pi's ...
0
votes
0answers
129 views
HD video streaming via webcam very choppy
I've tried Cheese and GuvcView, but both are extremely choppy. When I open open GuvcView even if I try and set FPS to 24/sec it only will give me 3 FPS.
I am remoting into the RP3 via TeamViewer. ...
1
vote
0answers
1k views
Getting UV4L working with USB camera
I have installed the UV4L suite of software onto RPi3 with Jessie. I am using a USB cam (Logitech C170) rather than RPi cam. I have been struggling to get this working reliably.
Initially I could ...
2
votes
3answers
956 views
I want to webcam stream 24/7 to open Internet
I am a teacher, and we are using a 3-D printer. I have a Raspberry Pi 3 Model B, as well as the Webcam Module Version 2, and I have the camera set up and can see video by typing in localhost:8081 into ...
0
votes
1answer
803 views
Problem with every even photo using USB camera
I use Raspberry Pi 3 with Linux RaspberryPi 4.9.59-v7+ onboard together with Logitech HD Webcam C270. It works quite well, I am able to preview video stream in Qt V4l2 Test Utility, take a photo with ...
0
votes
1answer
497 views
Two Webcams Taking Stills
I’m a bit of a novice, needing to do this for a university project. I need to connect two USB webcams to the RPi and get each to take a still image and save it in “%iimg%i” naming notation to identify ...
0
votes
2answers
67 views
Virtual Reality with RPi 3
I am working on a project in which I am trying to combine two seperate USB webcamera's to create a pair for virtual 360 degree footage.
Can RPi 3 encode this video and send it to a smartphone ...
1
vote
0answers
209 views
c310 logitech webcam not closing properly in pygame code
I'm accessing my c310 logitech webcam in python with pygame in an attempt to take pictures and save them. My final goal is to take a new picture every minute for 24 hours to make a timelapse. Here is ...
1
vote
0answers
639 views
RTSP Webcam stream video+audio
Im trying to stream audio and video using cvlc from a Logitech C920 using RTSP, I have got video to work but not audio.
cvlc --sout=#rtp{sdp=rtsp://:8554/} 'v4l2:///dev/video0:chroma=H264:width=1280:...
0
votes
0answers
264 views
Want to find difference between two frames, but get a lot of noise because of the auto changing on exposure, brightness…(not sure) of the webcam
As title, I tried to use Raspberry Pi + logitech webcam to find the difference between two frames, the following is the code that I used:
import cv2
#capture from camera at location 0
cap = cv2....
3
votes
0answers
724 views
Stream a camera, and get the video feed on Java
For my project, I have two USB cameras. I would like to plug them to the Raspberry Pi to stream over the internet. Also, I am developing a software in Java, and these videos streams (2) have to be ...
1
vote
1answer
271 views
using an rpi as IP camera with minimal CPU usage?
I'm trying to get a pi happening as an IP camera, using a CSI camera module. I'd like to minimise CPU usage. I don't need motion detection, just to dump an image from the camera onto the network where ...
0
votes
0answers
320 views
Configuring USB Webcam in Raspberry PI
I'm configuring Logitech C920 USB Webcam in Raspian for using it with a 3rd party application.
I get the below error
I tried to set exposure control using uvcdynctrl and guvcview as well.
I'm able to ...
0
votes
1answer
324 views
Raspberry Pi as HDMI to USB converter for HD Camcorder
I know this is a long shot, but is it possible to use the HDMI port of the Raspberry Pi as an input from an HD camcorder, and use a USB port as an output for another device (like a laptop) to use as a ...
0
votes
1answer
102 views
Freeze caused by bluetooth and webcam
My web app has a webcam running using ng-camera(based on webcam.js), and a separate bluetooth sniffer running on node js on the background. After several minutes running, the app and raspberry pi will ...
1
vote
1answer
2k views
Can't access motion cam on my raspberry pi from outside
I have been struggling with this for whole day. I have a Microsoft web cam connected to my raspberry pi 3 with ip of 192.168.0.17, and listening port of 446. Based on the documentation I have the ...
0
votes
0answers
230 views
Suggestions on getting better than 100ms latency streaming video with Raspberry PI 3
I am using a raspberry PI 3 to stream video using UV4l via a usb webcam. I have set the PI 3 as a hotspot that you can connect directly to via wifi (no router used at all). I am getting a video stream ...
1
vote
3answers
3k views
Motion: Unable to open device
I can access the web interface but get a grey screen then saying "Unable to open device".
I tried:
pi@octopi:~ $ ls /dev/video*
pi@octopi:~ $ /dev/video0
I can also take pictures with fswebcam so ...
1
vote
2answers
1k views
Problem with usb camera
I want to periodically take pictures using a webcam connected on a Raspberry Pi via fswebcam. It happens that it is unstable and some times it just fails, with no apparently reason.
Below you will ...
2
votes
1answer
5k views
VLC - Unable to open MRL 'v4l2:///dev/video0'
I have been trying to stream live webcam footage from my PS3 eye toy (connected to RPI through USB).
I downloaded VLC and ran:
vlc 4l2:///dev/video0
But I keep running into the error
VLC is ...
1
vote
0answers
133 views
Python Google drive upload not working continuously
I am trying to build an auto image Google drive up-loader with raspberry pi and a web-cam but the python script I wrote after executing once properly doesn't seem to work if I execute it again ...
2
votes
1answer
617 views
How to use a webcam that is not officially for the Raspberry Pi?
I was just wondering if I could use a normal webcam that is NOT officialy Raspberry Pi endorsed?
I am using a Raspberry Pi 3 Model B
0
votes
1answer
706 views
RPi-Cam-Web-Interface - Problem Loading Page when IP Address is entered
I have spent most of the day trying to install RPi-Cam-Web-Interface onto my device with no success. I have followed the instructions here but once the installer has finished (using the defaults) I am ...
-3
votes
1answer
73 views
Old RC car too new [closed]
I have a old RC car/truck with a good battery. It's starting is 2 dc motors on the back wheels (Skid steering?). Am I able to use a Raspberry Pi, USB web cam and a USB wifi card to make a RC car that ...
4
votes
0answers
449 views
Unable to capture high-quality video on pi in Java(FX)
Current I am developing a JavaFX application that should display video to the user. I use https://github.com/sarxos/webcam-capture to retreive video data. I use v4l4j to get video on the pi. I use ...
0
votes
1answer
137 views
When I plug a USB camera in I get strange characters displaying on the screen
I have a raspberry pi B+ running the latest Jessie image (Linux raspberrypi 4.9.22+ ). I have a monitor, usb keyboard and usb mouse plugged into it. I also have a wired ethernet plugged in. No other ...
5
votes
2answers
4k views
Get h264 from Webcam Logitech C922
I've read multiple threads about streaming a Logitech C920 Webcam via raspberry pi with cvlc using basically this command:
cvlc v4l2:///dev/video1:chroma=h264:width=800:height=600 --sout '#standard{...
1
vote
2answers
1k views
Accessing Cam Web Interface over a VPN
I have 2 Raspbery Pi's (B+) set up in 2 different locations:
RPi 1 is at home. It is connected to the internet and port forwarding is allowed. I am able to SSH into it from another location. I have ...
0
votes
0answers
601 views
Multiple stepper motors and servos
I want to build a 'robot' of some sorts.
I'll be using four geared 60 mm stepper motors, a webcam and one servo. Before jumping into this and buying a RPi, I'd like to know if I would be able to hook ...
4
votes
2answers
4k views
Presenting HTTP service securely with HTTPS
I've successfully configured a Motion webcam server for monitoring my puppy as he destroys the kitchen: The video is presented within an HTML page with allows for basic HTTP authentication, but is ...
1
vote
0answers
1k views
how to close fswebcam after using it in python
I used fswebcam in python together with os.system() but i do not know how to close it after using it is in a loop that is why I want to close it like the picamera.close()
