Development of a multilingual digital signage system using a directional volumetric display and language identification

Abstract

In a previous study, we have developed a directional volumetric display that handles multiple directional images. To realize a multilingual digital signage system, we implement a language identification function on the directional volumetric display. The language identification (English, Spanish or French) is performed using a convolutional neural network. The discrimination accuracy of the three languages is 91.9%. Combining the language identification function with the directional volumetric display, an image can be directed toward a specific speaker. The result is a multilingual digital signage system that adapts the image presentation to the spoken language.

A New Algorithm for Displaying Images With High Resolution Using a Directional Volumetric Display With Threads and a Projector

“…Further, the directional volumetric display has been researched to develop interactive displays for people and systems. These include systems that transmit images while following the observer and systems that display directional images based on the language and position of the observer [21], [22]. Thus, the directional volumetric display is expected to be used for both practical and entertaining purposes.…”