Title
Dr.
Last Name
Bektas
First name
Kenan
Email
kenan.bektas@unisg.ch
ORCID
Phone
+41 71 224 27 63
Google Scholar
1 - 5 of 5
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PublicationNeighboAR: Efficient Object Retrieval using Proximity-and Gaze-based Object Grouping with an AR SystemHumans only recognize a few items in a scene at once and memorize three to seven items in the short term. Such limitations can be mitigated using cognitive offloading (e.g., sticky notes, digital reminders). We studied whether a gaze-enabled Augmented Reality (AR) system could facilitate cognitive offloading and improve object retrieval performance. To this end, we developed NeighboAR, which detects objects in a user's surroundings and generates a graph that stores object proximity relationships and user's gaze dwell times for each object. In a controlled experiment, we asked N=17 participants to inspect randomly distributed objects and later recall the position of a given target object. Our results show that displaying the target together with the proximity object with the longest user gaze dwell time helps recalling the position of the target. Specifically, NeighboAR significantly reduces the retrieval time by 33%, number of errors by 71%, and perceived workload by 10%.Type:Journal:Volume:Issue:
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PublicationMR Object Identification and Interaction: Fusing Object Situation Information from Heterogeneous Sources(ACM, 2023-09-28)
Scopus© Citations 2 -
PublicationEToS-1: Eye Tracking on Shopfloors for User Engagement with Automation(CEUR Workshop Proceedings, 2022-04-30)
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PublicationShoppingCoach: Using Diminished Reality to Prevent Unhealthy Food Choices in an Offline Supermarket ScenarioNon-communicable diseases, such as obesity and diabetes, have a significant global impact on health outcomes. While governments worldwide focus on promoting healthy eating, individuals still struggle to follow dietary recommendations. Augmented Reality (AR) might be a useful tool to emphasize specific food products at the point of purchase. However, AR may also add visual clutter to an already complex supermarket environment. Instead, reducing the visual prevalence of unhealthy food products through Diminished Reality (DR) could be a viable alternative: We present Shopping-Coach, a DR prototype that identifies supermarket food products and visually diminishes them dependent on the deviation of the target product’s composition from dietary recommendations. In a study with 12 participants, we found that ShoppingCoach increased compliance with dietary recommendations from 75% to 100% and reduced decision time by 41%. These results demonstrate the promising potential of DR in promoting healthier food choices and thus enhancing public health.
Scopus© Citations 1 -
PublicationPersonalized Reality: Challenges of Responsible Ubiquitous PersonalizationThe expanding capabilities of Mixed Reality and Ubiquitous Computing technologies enable personalization to be increasingly integrated with physical reality in all areas of people's lives. While such ubiquitous personalization promises more inclusive, efficient, pleasurable, and safer everyday interaction, it may also entail serious societal consequences such as isolated perceptions of reality or a loss of control and agency. We present this paper to initiate a discussion towards the responsible creation of ubiquitous personalization experiences that mitigate these harmful implications while retaining the benefits of personalization. To this end, we present the concept of Personalized Reality (PR) to describe a perceived reality that has been adapted in response to personal user data. We provide avenues for future work, and list open questions and challenges towards the creation of responsible PR experiences.