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Questions tagged [computer-vision]

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

1
vote
2answers
427 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 ...
1
vote
1answer
162 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 ...
0
votes
0answers
29 views

Can I do colour conversions on the GPU?

I'm using python with OpenCV. I need to do colour conversions such as yCrCb and maybe HSV and gray-scale. Using python, can I do this on the GPU? I'm using a resolution of 320*240 on the Pi 3.
0
votes
1answer
118 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 *** ...
2
votes
1answer
298 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 ...
0
votes
3answers
654 views

How do I connect a Raspberry Pi to my computer using HDMI?

I have inserted my SD card and all that stuff but when I insert the HDMI into the computer it does not seem to load up, how can I make it loadup with my computer? Do I need Ethernet or something like ...
2
votes
2answers
703 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 ...
0
votes
1answer
330 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', '...
0
votes
0answers
340 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-...
2
votes
2answers
2k 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% ...
0
votes
1answer
989 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 ...
1
vote
1answer
1k 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 ...
3
votes
4answers
1k 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. ...
1
vote
2answers
5k 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 ...
2
votes
1answer
2k 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 ...
2
votes
1answer
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 ...
0
votes
0answers
634 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 ...
0
votes
2answers
61 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 ...
7
votes
1answer
7k 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?
3
votes
2answers
1k 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 ...
1
vote
1answer
696 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 ...
5
votes
2answers
4k 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 ...
11
votes
1answer
1k 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 ...
29
votes
3answers
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?