
Light The City
"Light The City" is an AI-based digital interactive installation for urban public spaces. The design uses gesture classification as the machine learning technique and integrates sound effects as the background audio output. Using a trained system, four areas on the mobile phone's interface represent 4 types of weather situations. Users tapping on each area will add the value of a certain weather situation.
The public starts the interaction by scanning a QR code using their mobile phone. Users' operation on the mobile phone interface will contribute visual graphic output on a large LED screen. The design aims to inform city dwellers about the ecological damage caused by environmental pollution and to raise awareness of the need to protect the environment.
Client & Server Interfaces - Mobile
Machine learning tech: gesture classification
client
Input: touch, musical notes
server
Output: visual output and sound
Module 1
Non-interaction Mode

client
Module 2
Fog Mode

In none- interaction mode, client side presents the starting screen, and the server side presents a clear view of the city at night

Server
When the ‘fog’ icon appears (determined by user's control) on the smartphone, the corresponding fog output will appear on the server interface.
The Fog effect implies a negative experience, as it makes the city invisible and unsustainable and also brings unpleasant experiences to users.


client
Server: high fog value
Server: low fog value
Module 3
Rain Mode

client
When the ‘rain’ icon on the client interface is touched, both client and server interfaces will appear with the raining effect.
Like the fog effect, the rain mode also implies an unpleasant experience, as the depth of the water (flood) will gradually rise until it floods the city.


Server: High rainfall
Server: Low rainfall
Module 4
Star Mode

Likewise, when the Star Mode is touched, the flood will gradually disappear.
Also, each time users touching the Star Mode, the shooting star effect will appear.


client
Server: star effect 1
Server: star effect 2
Module 5
Flower Mode

client
Every time users touch the Flower Mode, the depth of flood will decrease. It implies that good hehaviors will remedy those destructive consequences and thus encourages users to participate in these positive behaviors.
Also, in the flower mode, flowers will bounce according to users’ control.

Server
User Guide






