Detecting motion with RPi

Using OpenCV library and few lines of Python code it's easy to create a simple motion detection with a Raspberry Pi.

This could be accomplished with other methods, like using a PIR sensor, but sometimes you just want to use a webcam without adding further hardware.

For this post I'm using my Sphaera configuration. This means that the video from a PiCamera is available as a web stream, but it would be easy to get your video frames from different sources...

Face detection with Raspberry Pi

One nice thing that can be done with the latest technology is a really powerful image analysis. Also using a small unit like a Raspberry Pi can be enough to create tasks such as face detection and recognition.

These two tasks are quite similar. Detection is just the task of finding a face in an image (could be static image or a frame from a video stream). Recognition is finding a known face in a picture. 

For this post I will show you how to configure a small face detection system using a RPi and a PiCamera.