publications([{ "lang": "en", "publisher": "ACM", "doi": "https://doi.org/10.1145/3536221.3556589", "title": "Keep in Touch: Combining Touch Interaction with Thumb-to-Finger µGestures for People with Visual Impairment", "url": "https://hal.archives-ouvertes.fr/hal-03778999", "abstract": "We present a set of 8 thumb-to-finger microgestures (TTF μGestures) that can be used as an additional modality to enrich touch interaction in eyes-free situations. TTF μGestures possess characteristics especially suited for people with visual impairment (PVI). They have never been studied specifically for PVI to improve accessibility of touchscreen devices. We studied a set of 33 common TTF μGestures to determine which are feasible and usable without seeing while the index is touching a surface. We found that the constrained position of the hand and the absence of vision prevent participants from being able to efficiently target a specific phalanx. Thus, we propose a set of 8 TTF μGestures (6 taps, 2 swipes) balancing resiliency (i.e., low error-rate) and expressivity (i.e., number of possible inputs): as a dimension combined with the touch modality, it would realistically multiply the touch command space by eight. Within our set of 8 TTF μGestures, we chose a subset of 4 μGestures (2 taps and 2 swipes) and implemented an exploration scenario of an audio-tactile map with a raised-line overlay on a touchscreen and tested it with 7 PVI. Their feedback was positive on the potential benefits of TTF μGestures in enhancing the touch modality and supporting PVI interaction with touchscreen devices", "authors": { "1": { "first_name": "Gauthier", "last_name": "Faisandaz" }, "2": { "first_name": "Alix", "last_name": "Goguey" }, "3": { "first_name": "Christophe", "last_name": "Jouffrais" }, "4": { "first_name": "Laurence", "last_name": "Nigay" } }, "year": 2022, "uri": "http://iihm.imag.fr/publication/FGJ+22a/", "pages": "105–116", "bibtype": "inproceedings", "id": 945, "abbr": "FGJ+22a", "address": "Bengaluru (Bangalore), India", "date": "2022-11-07", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "24th ACM International Conference on Multimodal Interaction (ICMI 2022)", "type_publi": "icolcomlec" }]);