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25 February 2014

The Smile Detector – Interactive Facial Expression Recognition Software

Computer Vision Technologies belong to the group of disruptive technological advances that will transform life, business and the global economy, according to a report from the McKinsey Global Institute (May 2013). A major area of interest for the application of computer vision technology is detecting smile and analyzing human faces.

Face analysis software provides the capability to detect human faces with a simple camera or webcam and measure a number of features like mood (facial expressions), eye movement and head movement. Facial expressions that can be detected are the level of happiness, surprise, fear, disgust, anger and sadness.

The Smile Detector is a practical illustration of an interactive human face analysis application. It consists of a camera or webcam monitoring people in front of a screen. The camera is connected with a computer that runs the Smile Detector software based on the cutting-edge AI-based technology that processes the images from the camera. The output from the Smile Detector is presented on the screen.

Depending on the quality of the camera (zoom, resolution) human faces can be captured up to 15 meters distance. The Smile Detector detects faces of multiple people looking in the direction of the camera simultaneously. The software can distinguish which people are smiling and when a certain minimum ‘smile-threshold’ is triggered, it activates the camera to take a picture of the particular face. The picture is then positioned in the top-left corner of the screen and each time when new smiles are photographed, the pictures scroll clock-wise over the screen until they disappear at the down-left corner. No pictures are stored to avoid privacy issues.

The Smile Detector illustrates how facial expression analysis solutions can be put to use in a real-life environment. As the software measures mood in real-time, people can see the result of their actions instantaneously (when your smile is big enough, your picture appears on the (big) screen). Face analysis technology hence opens up a whole area of interactive application opportunities with for instance smart TV’s, mobile devices with frontal facing cameras, or robots with a webcam serving elderly people in assisted living environments. Not only smile levels can be used for controls, but also for instance eye movement or head movement.

Potential application areas for the Smile Detector are the Hospitality industry, Corporate reception desks, Exhibition organizers, the Leisure industry and the Gaming industry.

Please contact us at info@sightcorp.com, for more information or ask for a quote.

By Sightcorp

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About the Author

Sightcorp is the anonymous audience analytics intelligence specialist for Digital Signage, DOOH, Out of Home Media, and In-Store Analytics. Making lightweight AI edge software solutions that bridge the gap between the online and real world. Providing anonymous in-store analytics to Retailers and powering the DOOH ecosystem with ad performance metrics for advertisers, real-time audience reach for media network owners, and an industry-recognized impression-based currency for programmatic advertising.