Abstract
Olfaction can enhance the experience of music, films, computer games and virtual reality applications. However, this area is less explored than other areas such as computer graphics and audio. Most advanced olfactory displays are designed for a specific experiment, they are hard to modify and extend, expensive, and/or can deliver a very limited number of scents. Additionally, current-generation olfactory displays make no decisions on if and when a scent should be released. This paper proposes a low-cost, easy to build, powerful smart olfactory display, that can release up to 24 different aromas and allow control of the quantity of the released aroma. The display is capable of absorbing back the aroma, in an attempt to clean the air prior to releasing a new aroma. Additionally, the display includes a smart algorithm that will decide when to release certain aromas. The device controller application includes releasing scents based on a timer, text in English subtitles, or input from external software applications. This allows certain applications (such as games) to decide when to release a scent, making it ideal for gaming. The device also supports native connectivity with games developed using a game development asset, developed as part of this project. The project was evaluated by 15 subjects and it was proved to have high accuracy when the scents were released with 1.5 minutes’ delay from each other.
Highlights
Recent advances in multimedia and virtual reality allow the delivery of very high-quality images and audio to the audience, offering an emerging experience
An some external devices that are placed in the environment and they release or spray the user with some some external devices that are placed in the environment and they release or spray the user with some scent
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Summary
Recent advances in multimedia and virtual reality allow the delivery of very high-quality images and audio to the audience, offering an emerging experience. Smells that are directly related to an object are called “olfactory icons” while the indirectly related scents are called “olfactory smicons” [2] Both of them enhance the quality of films, gaming and virtual reality and offer an even more immersive experience [3]. Presenting scents to the user, during such experience is possible by the use of devices called olfactory displays. Anothercommon common problem and one thethe reasons why this technology is not widely used, is is that most olfactory displays dodo not include of reasons why this technology is not widely used, that most olfactory displays not includea forfor cleaning thethe airair from previously released scents.
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