We have realized a simple haarcascade-based face detection with openCV. Images are acquired from a Basler dart camera. You can use that example also for any Basler 2D cameras.
Hand Gesture Remote is a computer vision based project implemented using opencv , python,raspberry pi. The camera feed will be processed at rpi and recognize the hand gestures. Then detected gesture will map to predefined GPIO signal of the rpi. Here is a demo of video https://youtu.be/U8X_tLIOGAc
Learn how to get started with image processing on your Raspberry Pi 3!