publications([{ "lang": "en", "publisher": "ACM", "doi": "https://doi.org/10.1145/3379337.3415893", "title": "GyroSuite: General-Purpose Interactions for Handheld Perspective Corrected Displays", "url": "https://hal.archives-ouvertes.fr/hal-02985961", "abstract": "Handheld Perspective-Corrected Displays (HPCDs) are physical objects that have a notable volume and that display a virtual 3D scene on their entire surface. Being handheld, they create the illusion of holding the scene in a physical container (the display). This has strong benefits for the intuitiveness of 3D interaction: manipulating objects of the virtual scene amounts to physical manipulations of the display. HPCDs have been limited so far to technical demonstrators and experimental tools to assess their merits. However, they show great potential as interactive systems for actual 3D applications. This requires that novel interactions be created to go beyond object manipulation and to offer general-purpose services such as menu command selection and continuous parameter control. Working with a two-handed spherical HPCD, we report on the design and informal evaluations of various interaction techniques for distant object selection, scene scaling, menu interaction and continuous parameter control. In particular, our design leverages the efficient two-handed control of the rotations of the display. We demonstrate how some of these techniques can be assemble in a self-contained anatomy learning application. Novice participants used the application in a qualitative user experiment. Most participants used the application effortlessly without any training or explanations.", "authors": { "1": { "first_name": "Thibault", "last_name": "Louis" }, "2": { "first_name": "Jocelyne", "last_name": "Troccaz" }, "3": { "first_name": "Amélie", "last_name": "Rochet-Capellan" }, "4": { "first_name": "François", "last_name": "Bérard" } }, "year": 2020, "uri": "http://iihm.imag.fr/publication/LTR+20a/", "pages": "1248-1260", "bibtype": "inproceedings", "id": 921, "abbr": "LTR+20a", "address": "Minneapolis (Virtual Event), United States", "date": "2020-10-20", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "UIST 2020 - 33rd Annual ACM Symposium on User Interface Software and Technology", "type_publi": "icolcomlec" }, { "lang": "en", "publisher": "ACM", "doi": "https://doi.org/10.1145/3399715.3399815", "title": "When High Fidelity Matters: AR and VR Improve the Learning of a 3D Object", "url": "https://hal.archives-ouvertes.fr/hal-02985937", "abstract": "Virtual and Augmented Reality Environments have long been seen as having strong potential for educational applications. However, research showing actual evidences of their benefits is sparse. Indeed , some recent studies point to unnoticeable benefits, or even a detrimental effect due to an increase of cognitive demand for the students when using these environments. In this work, we question if a clear benefit of AR and VR can be robustly measured for a specific education-related task: learning a 3D object. We ran a controlled study in which we compared three interaction techniques. Two techniques are VR-and AR-based; they offer a High Fidelity (HF) virtual reproduction of observing and manipulating physical objects. The third technique is based on a multi-touch tablet and was used as a baseline. We selected a task of 3D object learning as one potentially benefitting from the HF reproduction of object manipulation. The experiment results indicate that VR and AR HF techniques can have a substantial benefit for education as the object was recognized more than 27% faster when learnt using the HF techniques than when using the tablet.", "authors": { "1": { "first_name": "Thibault", "last_name": "Louis" }, "2": { "first_name": "Jocelyne", "last_name": "Troccaz" }, "3": { "first_name": "Amélie", "last_name": "Rochet-Capellan" }, "4": { "first_name": "Nady", "last_name": "Hoyek" }, "5": { "first_name": "François", "last_name": "Bérard" } }, "year": 2020, "uri": "http://iihm.imag.fr/publication/LTR+20b/", "pages": "39:1-9", "bibtype": "inproceedings", "id": 922, "abbr": "LTR+20b", "address": "Salerno, Italy", "date": "2020-09-28", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "AVI 2020 -International Conference on Advanced Visual Interfaces", "type_publi": "icolcomlec" }]);