International Journal “Information Theories and Applications”, Vol. 26, Number 2, © 2019 115 MARKER-BASED FINGER GESTURE INTERACTION IN MOBILE AUGMENTED REALITY Loubna Ahmed, Doaa Hegazy, Salma Hamdy, Taha Elarif Abstract: This paper proposes a mobile AR application that allows the user to perform 2D interactions with the 3D virtual objects. The user is supposed to hold the mobile with his left hand and interact using the other one. In addition, the user is supposed to attach two colored markers (stickers) to his fingers; blue for the thumb and green for the index. User studies (experiments) were conducted to test the different interaction types; translation, scaling and rotation. The application run on a Samsung Note 5 device with Android 7 as OS. Our results were based on the performance (completion) time per each task per each participant in addition to a subjective questionnaire that was answered by the participants after finishing the user studies. According to the results, it was found that this approach had a delay which implies low performance and users faced a slight difficulty in accomplishing all tasks, yet this approach proved to be engaging and fun. Keywords: Mobile Augmented Reality, Marker-based Interaction, Color Detection. ITHEA Keywords: H.5 INFORMATION INTERFACES AND PRESENTATION, H.5.1 Multimedia Information Systems. Introduction Over the past years, Augmented Reality (AR) has evolved and one of its evolutions is mobile AR. A key point of mobile AR is being reactive, which imposes real-time constraints. Interaction techniques focus on allowing the users to interact with the emerging virtual object and are considered the basis for having a successful AR system.