publications([{
   "lang": "en",
   "publisher": "ACM: Association for Computing Machinery, New York",
   "doi": "https://doi.org/10.1145/3577190.3614131",
   "title": "µGeT: Multimodal eyes-free text selection technique combining touch interaction and microgestures",
   "url": "https://hal.science/hal-04353214",
   "abstract": "We present μGeT, a novel multimodal eyes-free text selection technique. μGeT combines touch interaction with microgestures. μGeT is especially suited for People with Visual Impairments (PVI) by expanding the input bandwidth of touchscreen devices, thus shortening the interaction paths for routine tasks. To do so, μGeT extends touch interaction (left/right and up/down flicks) using two simple microgestures: thumb touching either the index or the middle finger. For text selection, the multimodal technique allows us to directly modify the positioning of the two selection handles and the granularity of text selection. Two user studies, one with 9 PVI and one with 8 blindfolded sighted people, compared μGeT with a baseline common technique (VoiceOver like on iPhone). Despite a large variability in performance, the two user studies showed that μGeT is globally faster and yields fewer errors than VoiceOver. A detailed analysis of the interaction trajectories highlights the different strategies adopted by the participants. Beyond text selection, this research shows the potential of combining touch interaction and microgestures for improving the accessibility of touchscreen devices for PVI.",
   "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": 2023,
   "uri": "http://iihm.imag.fr/publication/FGJ+23a/",
   "pages": "594-603",
   "bibtype": "inproceedings",
   "id": 958,
   "abbr": "FGJ+23a",
   "address": "Paris, France",
   "date": "2023-10-09",
   "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet",
   "booktitle": "25th ACM International Conference on Multimodal Interaction Paris (ICMI 2023)",
   "type_publi": "icolcomlec"
},
{
   "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"
}]);