We talked about Adam Harvey’s CV Dazzle project. Here is another idea, this time using LEDs to emit infrared light, invisible to the human eye, but captured by photo sensors. The infrared light works as noise, blocking that essential eye-to-nose bridge that facial recognition algorithms rely on.
Article in German: http://www.spiegel.de/netzwelt/gadgets/gesichtserkennung-japanischer-forscher-entwickelt-tarn-brille-a-879251.html
Update: Doesn’t seem to work!