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MARISIL stands for Mobile Augmented Reality Interface Sign Interpretation Language.

The system was design to study a possible user interface alternative for the mobile phones. With MARISIL the user is able to place a phone call by using a combination of gestures and technologies like Augmented Reality. The following picture (Fig 1) describes the sistem, from left to right, by revealing the schematic description of the system, the screenshots from usability tests video done in 1999 and the screenshots from the testing prototype build in 2000-2001.

Mobile Augmented Reality Interface Sign Interpretation Language System
(MARISIL). A possible approach for future media phones user interfaces that can
apply to wearable computers.
Fig. 1 Mobile Augmented Reality Interface Sign Interpretation Language System (MARISIL). A possible approach for future media phones user interfaces that can apply to wearable computers.(big version). Copyright © 2004 Peter Antoniac.

In our proposed approach the user interacts by using its own hands that are cover with the information provided through means of Augmented Reality. That proved to be a more intuitive way of interacting with a computer opposed to current approaches like keyboards, touch screens or simple gestures.

Another feature of the proposed method is the ability to morph and change. The interface can provide enough interaction to allow the operation of phones, browser or a video player. Moreover, when using such interfaces, once the user assimilates them, they can be used to operate other devices, not only phones or computers.

The implementation of such interfaces requires, from the device that operates it, lot of the microprocessor time to be spent on other tasks than the UI (i.e. image processing, registration, calibration etc.). These limitations have suggested that the separation of the interface could provide better integration and easier deployment with currently available mobile devices. This separation we defined it as "user interface appliance".

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