RPI, Unix and Windows Speed Camera Using python, openCV, USB Cam or RPI camera module
RPI Quick Install or Upgrade
IMPORTANT - A raspbian sudo apt-get update and sudo apt-get upgrade will
NOT be performed as part of
speed-install.sh so it is recommended you run these prior to install to ensure your system is up-to-date.
Step 1 With mouse left button highlight curl command in code box below. Right click mouse in highlighted area and Copy.
Step 2 On RPI putty SSH or terminal session right click, select paste then Enter to download and run script.
curl -L https://raw.github.com/pageauc/speed-camera/master/speed-install.sh | bash
This will download and run the speed-install.sh script. If running under python3 you will need opencv3 installed. See my Github menu driven compile opencv3 from source project
This is a raspberry pi, Windows, Unix Distro computer openCV object speed camera demo program. It is written in python and uses openCV to detect and track the x,y coordinates of the largest moving object in the camera view above a minimum pixel area. User variables are stored in the config.py file. Motion detection is restricted between y_upper, y_lower, x_left, x_right variables (road or area of interest). If a track is longer than track_len_trig variable then average speed will be calculated based on cal_obj_px and cal_obj_mm variables and a speed photo will be taken and saved in media/images dated subfolders per variable imageSubDirMaxFiles = 1000 (see config.py).
If log_data_to_CSV = True then a speed-cam.csv file will be created/updated with event data stored in CSV (Comma Separated Values) format. This can be imported into a spreadsheet, database, Etc program for further processing. Release 8.9 adds a sqlite3 database to store speed data. Default is data/speed_cam.db with data in the speed table . there is a simple report sql_speed_gt.sh that can query for records with greater than a specified speed. I plan on doing more but this should be a good start. Take a look at the code for details.
Also included are
- menubox.sh script is a whiptail menu system to allow easier management of program settings and operation.
- rclone for optional remote file sync to a remote storage service like google drive, DropBox and many others.
- watch-app.sh for administration of settings from a remote storage service. Plus application monitoring.
- speed-search.py allows searching for similar target object images using opencv template matching.
- makehtml.py creates html files that combine csv and image data for easier viewing from a web browser. (Does not work with secpicam480.py or secwebcam480.py plugins enabled.
- webserver.py Allows viewing images and/or data from a web browser (see config.py for webserver settings)
- sql_speed_gt.sh Prompts for a speed value and runs a simple sqlite3 query to show all record that exceed the specified speed. Output can be found in media/reports folder and is available from browser.
- sql_hour_count.py Run report for count by hour. also produces a graph using gnuplot. Query output html report and .png graph can be found in media/reports folder and is available from browser.
Raspberry Pi computer and a RPI camera module installed
or USB Camera plugged in. Make sure hardware is tested and works. Most RPI models will work OK.
A quad core RPI will greatly improve performance due to threading. A recent version of
Raspbian operating system is Recommended.
MS Windows or Unix distro computer with a USB Web Camera plugged in and a recent version of python installed For Details See Wiki details.
It is recommended you upgrade to OpenCV version 3.x.x For Easy compile of opencv 3.4.2 from source See https://github.com/pageauc/opencv3-setup
Windows or Non RPI Unix Installs
For Windows or Unix computer platforms (non RPI or Debian) ensure you have the most up-to-date python version. For Downloads visit https://www.python.org/downloads
The latest python versions includes numpy and recent opencv version that is required to run this code. You will also need a USB web cam installed and working. To install this program access the GitHub project page at https://github.com/pageauc/speed-camera Select the green Clone or download button. The files will be cloned or zipped to a speed-camera folder. You can run the code from python IDLE application (recommended), GUI desktop or command prompt terminal window. Note bash .sh shell scripts will not work with windows unless special support for bash is installed for windows Eg http://win-bash.sourceforge.net/ http://www.cygwin.com/ Note I have Not tested these.
IMPORTANT speed-cam.py ver 8.x or greater Requires Updated config.py and plugins.
cd ~/speed-camera cp config.py config.py.bak cp config.py.new config.py
To replace plugins rename (or delete) plugins folder per below
cd ~/speed-camera mv plugins pluginsold # renames plugins folder rm -r plugins # deletes plugins folder
Then run menubox.sh UPGRADE menu pick.
Manual Install or Upgrade
From logged in RPI SSH session or console terminal perform the following. Allows you to review install code before running
cd ~ wget https://raw.github.com/pageauc/speed-camera/master/speed-install.sh more speed-install.sh # You can review code if you wish chmod +x speed-install.sh ./speed-install.sh # runs install script.
Run to view verbose logging
cd ~/speed-camera ./speed-cam.py
See How to Run speed-cam.py wiki section
IMPORTANT Speed Camera will start in calibrate = True Mode.
Review settings in config.py file and edit variables with nano as required. You will need to perform a calibration to set the correct value for config.py cal_obj_px and cal_obj_mm variables based on the distance from camera to objects being measured for speed. See Calibration Procedure for more details.
The config.py motion tracking variable called track_counter = can be adjusted for your system and opencv version. default is 5 but a quad core RPI3 and latest opencv version eg 3.4.2 can be 10-15 or possibly greater.
cd ~/speed-camera ./menubox.sh
View speed-cam data and trends from web browser per sample screen shots
- YouTube Speed Lapse Video https://youtu.be/-xdB_x_CbC8
- YouTube Speed Camera Video https://youtu.be/eRi50BbJUro
- YouTube motion-track video https://youtu.be/09JS7twPBsQ
- Speed Camera RPI Forum post https://www.raspberrypi.org/forums/viewtopic.php?p=1004150#p1004150
- YouTube Channel https://www.youtube.com/user/pageaucp
- Speed Camera GitHub Repo https://github.com/pageauc/speed-camera
Some of this code is based on a YouTube tutorial by Kyle Hounslow using C here https://www.youtube.com/watch?v=X6rPdRZzgjg
Thanks to Adrian Rosebrock jrosebr1 at http://www.pyimagesearch.com for the PiVideoStream Class code available on github at https://github.com/jrosebr1/imutils/blob/master/imutils/video/pivideostream.py