xznhj8129 / watchcam

WatchCam

Version 1.0

Contour-based OpenCV security system. Ported from Python 2 to C++ for a 10x CPU usage improvement. This is my first serious C++ software ever. Very basic but reliable and had been in use for over a year for real-life security monitoring. First version used simple image diff threshold and was too oversensitive to changes in light and artifacts, new contour-detection size-trigger based algorithm was far superior. Image downsizing + greyscale + light gaussian blurring has removed practically all image artifact and false movement.

Has a simple arduino connection that makes a led illuminate or flash depending on the tracked object. You could use that as base for more advanced alerts like a siren, radio beeper, security drones or heat-seeking missiles or whatever.

Config file

Support for 4 cams for now Important variables for motion algorithm:

• min_contour_size
• binarize_threshold
• blur_aperture
• md_scale (will be dynamically calculated soon)

Requirements

• OpenCV4
• libserial
• libconfig
• PySerial (to be dropped)

To be added:

• Adding rectangle select motion zone
• Alert sound playing
• ffmpeg HD recording
• Windows support
• HD picture dynamic scaling
• C++ Arduino controller