The glasses have capacitive EEG electrodes on both temples to read brainwaves, while the nose bridge houses an optical heart rate sensor and a microphone for measuring heart rate variability and breathing rates respectively. The information is combined by the onboard Curie module using what Intel calls "sensor fusion" for more accurate stress detection. It's then sent to a 3D printed belt around each model's waist over Bluetooth Low Energy. These belts also sport Curie modules to receive the data, as well as an Intel Compute Stick to process and visualize the stress metric. Finally, a pico projector on the waist casts the image and animations onto a wall in front of the models to show their real-time stress levels.
As they strut down the runway, models will be instructed to reduce stress by inhaling through the nose for six seconds and exhaling for four seconds. If all goes well and every gadget works as it should, the audience should see the projected animation change. Of course, having to focus on relaxing during such a high-stakes event is no easy feat, so it wouldn't be surprising if the animations didn't seem to change.
Based on the pictures, both the glasses and belts seem somewhat chunky, although they do house an awful lot of components. It's hard to see a real-world application for this particular device pairing, but it certainly is a cool tech demonstration for Intel. The company is clearly hoping to encourage more wearable makers to adopt the Curie tech, and this does seem like an intriguing way to show off what it can do.