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Questions tagged [computer-vision]

For questions pertaining to using the Raspberry Pi for computer vision.

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Can I control IR filter of night vision camera

I'm using night vision camera (PIS-1138) with Raspberry Pi 4 and Picamera2 Python3 library successfully. However, the camera seems to switch some sort of IR filter automatically on/off based on the ...
atonus's user avatar
  • 1
0 votes
0 answers
32 views

How to save raspi data from the SD Card

I recently installed the computer-vision-related libraries on my Raspberry Pi 4 running [os-bullseye]. However, I cannot log in to the system after the installation. Issue Description: While logIn ...
SONALI ANAND's user avatar
0 votes
0 answers
167 views

OpenCV is getting slow in Raspberry pi 4, 8gb

Here is have made a project attendance system, for which I have trained a model and used the .h5 file to make the real time Prediction using opencv. so if the person face is detected then his name and ...
Lele Yu's user avatar
0 votes
0 answers
720 views

OpenCV image processing incredibly slow on Pi 3B+

I have a computer vision algorithm on my Pi 3B+ that uses the following function, myVision(), that takes in a frame and outputs the pixel coordinates of a certain colored dot (tuned according to the ...
kieransquared's user avatar
1 vote
1 answer
1k views

Python pygame program won't run through SSH / Remote Desktop

I've been working on my own object recognition program based on the rpi-vision test program pitft_labeled_output.py (from this webpage). It's basically a custom neural network model and a bit modified ...
A6EE's user avatar
  • 73
0 votes
0 answers
20 views

Find-Object networking with rasperry pi board picamera

I'm trying to get the Find-Object application from ( http://introlab.github.io/find-object/ ) to capture video being sent across my wifi network from my raspberry 4 board. That RPI board is using it's ...
Robert's user avatar
  • 33
3 votes
2 answers
3k views

Raspberry Pi 4 GPU math

So there is support for Open GL ES 3.1, but how can I use it on the Raspberry Pi 4? Is there any other way to use the GPU for calculations such as fft and logarithm?
Hneggbrand's user avatar
1 vote
0 answers
104 views

what's the best method to detect lane lines using raspberry pi?

i have a question about a project that im working on. im making a lane keeping assistant on a self driving car (im using a toy battery car that a kid can ride on) which requires me to detect the lane ...
Fazrin Adinugraha's user avatar
2 votes
1 answer
1k views

Can Not able to install python OpenCv on raspberry pi 3?

I have been trying to run my 4WD Smart drive car with raspberry 3. I am using python 3 to implement algorithms and computer vision object detection. I also have a problem with Cheese camera on the pi. ...
M.salimy's user avatar
0 votes
0 answers
254 views

Does Raspberry Pi 3 B+ support the RGB-D Sensor?

Currently I am using Pi Camera which capture the image. But my objective is : To find the nearest object from the camera image. But Image Contains multiple objects shown below RGB-D can capture ...
DRV's user avatar
  • 173
-1 votes
2 answers
711 views

Errors with Lepton FLIR: Red square, unresponsive capture/overlay

I've been trying to set up a Lepton Thermal Camera (breakout v1.4) with a Raspberry Pi Zero W, and a Raspberry Pi 3. I've been following a number of guides but most recently this one. Once I run ...
Henrik's user avatar
  • 101
0 votes
0 answers
590 views

How to install Tensorflowjs backend for nodejs?

How can I configure TensorflowJS Backend(nodejs) to work on Raspberry Pi Zero W? After installing and running nodejs application, I get error saying something like 'this instruction set is not support'...
sirshakir's user avatar
2 votes
0 answers
1k views

How to 'source ~/.profile' and activate virtual environment and run python script from a .sh file

I am working on my project and using a raspberry pi 3B+ with raspbian OS. I followed the following link to pip install open cv on my pi using a virtual environment I named 'cv' and it works fine: ...
Max Hearnden's user avatar
1 vote
2 answers
2k views

Overhead Counter [closed]

My aim is to count people entering and leaving a bus using an overhead camera as shown in the bus and in the mall. How can I do it in Raspberry Pi? Is there any software or sources or platforms ...
Thoht's user avatar
  • 356
2 votes
1 answer
269 views

Camera to computer vision software on Pi [closed]

I am working on a project wherein i need to feed images from a camera to a computer vision application on Pi. I have never worked with camera systems before. The camera will be tasked to continuously ...
Pratik Khadloya's user avatar
0 votes
1 answer
503 views

Cannot take picture with Canon Rebel XT connected to Pi3 via gphoto2

When I try to take an automatic picture with my SLR camera (Canon Rebel XT) via the following command in gphoto2: gphoto2 --trigger-capture It returns an error as follow *** Error *** ...
Rotail's user avatar
  • 111
2 votes
1 answer
625 views

Erratic errors in libfreenect on Raspberry Pi 3

I'm running a 3D SLAM application (RTAB-Map) on my Raspberry Pi 3 with Raspbian Jessie. The sensor I'm using is a Kinect v1 (Xbox 360) camera connected to one of the USB ports. I've installed ...
Vin's user avatar
  • 121
2 votes
2 answers
2k views

How can I enable both the cameras on the Compute Module 3?

I am new to using Raspberry Pi devices. I have a problem with enabling the cameras on the Compute Module 3. When I run 'vcgencmd get_camera' I get the output 'supported=1, detected=1'. The ...
raspbiangetsCRAZY's user avatar
0 votes
1 answer
661 views

SimpleCV is not downloading!

Whenever I try to install SimpleCV, I always get this error message. Traceback (most recent call last): File "/usr/bin/pip", line 9, in <module> load_entry_point('pip==1.5.6', '...
Aditya Mangalampalli's user avatar
0 votes
0 answers
578 views

How to setup a C++ virtual environment on the raspberry pi 3?

I am currently trying to install openCV on my raspberry pi 3 and found this very nice tutorial to help me with that:http://www.pyimagesearch.com/2016/04/18/install-guide-raspberry-pi-3-raspbian-jessie-...
thubostehu's user avatar
2 votes
2 answers
6k views

How to setup Octave GNU 4.0+ for Raspbian

I'm working on the project where I need to read engraved text on the frame. I'm taking a picture using the Raspberry Pi USB camera. I initially developed a script in MatLab which achieved over 70% ...
UZIERSKI's user avatar
0 votes
1 answer
2k views

fatal python error: (pygame parachute) Segmentation Fault, vision system using simplecv

I am fairly new to both the raspberry pi and python. I have written a code to analyze an image, but I keep getting fatal python error: (pygame parachute) Segmentation Fault. It usually occurs between ...
maddmaxamofo's user avatar
1 vote
1 answer
2k views

Feature detection for embedded platform OpenCV [closed]

I'm trying to do object recognition in an embedded environment, and for this I'm using Raspberry Pi (Specifically version 2). I'm using OpenCV Library and as of now I'm using feature detection ...
Fanteros's user avatar
3 votes
4 answers
3k views

How can you get video display using the FLIR thermal camera

I am working the Lepton FLIR thermal camera and trying to get a video stream from it using the Raspberry Pi. When I hooked it up and used the already existing code I got a red box on a black screen. ...
sgmm's user avatar
  • 151
1 vote
2 answers
7k views

Stereo Vision Using Compute Module: Pi camera synchronization

Good day, I am currently working on an obstacle avoiding UAV using stereo vision to obtain depth maps. I noticed that the quadcopter would sometimes not steer to the correct direction. I am using ...
user123456098's user avatar
3 votes
1 answer
3k views

Does have Raspberry Pi enough performance for Computer vision process in c++

I will write a computer vision application in C++. I need to choose a hardware platform. I cannot use a PC (laptop, desktop, etc). I will process a video that I take a camera. Can I use a Raspberry ...
Halil İbrahim Oymacı's user avatar
2 votes
1 answer
1k views

Is opencl supported in Raspberry Pi for stereo vision applications?

I am currently using the opencv library for implementing stereo vision on the raspberry pi. A colleague of mine is using an odroid sbc supporting opencl for parallel processing of matrices. Is ...
user123456098's user avatar
0 votes
0 answers
795 views

Data Communication between two raspberry pi's via GPIO

Good day I am currently implementing an autonomous quadcopter with stereo vision using raspberry Pi. One (Let's call this Pi_1) is responsible for stereo vision the other is responsible for motor ...
user123456098's user avatar
0 votes
2 answers
68 views

Can rPi control a computer and provide backup?

Im just wondering, is rPi is able control a computer (on/off), check if the computer is working (using ping test). If the computer is not able to use, the rPi will automatically switch on another ...
Jack's user avatar
  • 1
10 votes
1 answer
12k views

Rapberry pi camera module vs usb camera [closed]

Is it good to use raspberry pi camera module for serious computer vision project using video or is it okay to use a usb webcam?
parthi82's user avatar
  • 335
3 votes
3 answers
3k views

Stereo camera frame synchronization/genlock (video or still image)

I need to frame synchronize a stereo camera for a computer vision application. The synchronization should be on a millisecond level possibly. I would like to get about 10 FPS either as video or still ...
Kozuch's user avatar
  • 250
1 vote
1 answer
811 views

Logging faces with OpenCV

I'm pretty new to OpenCV. Basically I want my RPi to do facial recognition with OpenCV and then log (save only the face as a picture) and store it in a database. How would I achieve this? I also want ...
chubby_monky's user avatar
6 votes
2 answers
5k views

Image Recognition Raspberry Pi

I'd like to distinguish different types of beers in my fridge using a Raspberry Pi. I saw a very good tutorial on Adafruit that utilized OpenCV for face recognition. Can these same face recognition ...
Anconia's user avatar
  • 163
13 votes
1 answer
2k views

Reading video from camera (Kinect if possible)

I am starting up a project that will require Computer Vision to be used on the Raspberry Pi. I am relatively familiar with OpenCV and am aware that it can be installed successfully on a Raspberry Pi ...
user912447's user avatar
32 votes
3 answers
9k views

Can I use OpenCV?

While the Raspberry Pi is not exactly a powerhouse, it should be capable of doing some OpenCV image or video processing. Has anyone tried to install it?
Avogado's user avatar
  • 609