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Raspberry Pi Computer Vision Programming by Ashwin Pajankar

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Hand gesture recognition

Gesture recognition denotes the interpretation of human gestures by a computer to perform a specific task. Gesture recognition systems try to interpret the gestures originating from hands, faces, body posture, or movements of the eye. Gesture recognition can employ one of the wide varieties of specialized input devices, such as gloves, depth stereo cameras, or body sensors. However, the simplest form of gesture recognition can be implemented using a simple camera as an input device (for example, our webcam). We are going to implement code to count the number of fingers in the hand held in front of the camera. This application will make use of the concept of convex hull, which we will see when coding.

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