publications([{
   "lang": "en",
   "publisher": "ACM",
   "doi": "http://doi.acm.org/10.1145/2468356.2468578",
   "title": "Overcoming Limitations of the Trackpad for 3D Docking Operations",
   "abstract": "From notebook trackpads to mobile phones to tabletop surface computing, multitouch input surfaces have become one of the most dominant interfaces for human-computer interaction. Although these are clearly effective for interaction with 2D graphical user interfaces, we suspect that they are not as well suited for interaction requiring greater degrees of freedom (DoF). Here, we consider the possibility of exploiting two such surfaces, one for each hand, as a means of affording efficient control over higher dimensional tasks. We investigate performance on a 6 DoF task, comparing such a two-surface multitouch input device against the results obtained using a standard 2D mouse, a single multitouch surface, and a 6 DoF free-space device. Our results indicate that two multitouch surfaces significantly improve user performance compared to the mouse and to a single surface.",
   "authors": {
      "1": {
         "first_name": "David",
         "last_name": "Glesser"
      },
      "2": {
         "first_name": "François",
         "last_name": "Bérard"
      },
      "3": {
         "first_name": "Jeremy R.",
         "last_name": "Cooperstock"
      }
   },
   "year": 2013,
   "uri": "http://iihm.imag.fr/publication/GBC13a/",
   "pages": "1239-1244 ",
   "bibtype": "inproceedings",
   "id": 630,
   "abbr": "GBC13a",
   "address": "New York, NY, USA",
   "date": "2013-04-27",
   "document": "http://iihm.imag.fr/publs/2013/CHI13_Glesser_MagicCube.pdf",
   "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet",
   "booktitle": "CHI '13 Extended Abstracts on Human Factors in Computing Systems",
   "type_publi": "icolcomlec"
},
{
   "lang": "en",
   "publisher": "Springer",
   "type_publi": "icolcomlec",
   "title": "On the Limits of the Human Motor Control Precision: the Search for a Device's Human Resolution",
   "url": "http://www.springerlink.com/content/t7v183m86p1n15t0/",
   "abstract": "Input devices are often evaluated in terms of their throughput, as measured by Fitts' Law, and by their resolution. However, little effort has been made to understand the limit of resolution that is controllable or \"usable\" by the human using the device. What is the point of a 5000 dpi computer mouse if the human motor control system is far from being able to achieve this level of precision? This paper introduces the concept of a Device's Human Resolution (DHR): the smallest target size that users can acquire with an ordinary amount of effort using one particular device. We report on our attempt to find the DHR through a target acquisition experiment involving very small target sizes. Three devices were tested: a gaming mouse (5700 dpi), a PHANTOM (450 dpi), and a free-space device (85 dpi). The results indicate a decrease in target acquisition performance that is not predicted by Fitts' Law when target sizes become smaller than certain levels. In addition, the experiment shows that the actual achievable resolution varies greatly depending on the input device used, hence the need to include the \"device\" in the definition of DHR.",
   "authors": {
      "1": {
         "first_name": "François",
         "last_name": "Bérard"
      },
      "2": {
         "first_name": "Guangyu",
         "last_name": "Wang"
      },
      "3": {
         "first_name": "Jeremy R.",
         "last_name": "Cooperstock"
      }
   },
   "year": 2011,
   "uri": "http://iihm.imag.fr/publication/BWC11a/",
   "pages": "107-122",
   "bibtype": "inproceedings",
   "id": 568,
   "abbr": "BWC11a",
   "address": "Berlin, Heidelberg",
   "date": "2011-09-29",
   "document": "http://iihm.imag.fr/publs/2011/INTERACT11_berard_threshold.pdf",
   "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet",
   "booktitle": "Human-Computer Interaction – INTERACT 2011, part II"
},
{
   "lang": "en",
   "type_publi": "icolcomlec",
   "title": "Pop-up Depth Views for Improving 3D Target Acquisition",
   "url": "http://portal.acm.org/citation.cfm?id=1992925",
   "abstract": "We present the design and experimental evaluation of pop-up depth views, a novel interaction technique for aiding in the placement or positioning of a 3D cursor or object. Previous work found that in a 3D placement task, a 2D mouse used with multiple orthographic views outperformed a 3D input device used with a perspective view with stereo. This was the case, even though the mouse required two clicks to complete the task instead of only the single click required with the 3D input device. We improve performance with 3D input devices with pop-up depth views, small inset views in a perspective display of the scene. These provide top- and side-views of the immediate 3D neighborhood of the cursor, thereby allowing the user to see more easily along the depth dimension, improving the user's effective depth acuity. In turn, positioning with the 3D input device is also improved. Furthermore, because the depth views are displayed near the 3D cursor, only tiny eye movements are required for the user to perceive the 3D cursor's depth with respect to nearby objects. Pop-up depth views are a kind of depth view, only displayed when the user's cursor slows down. In this manner, they do not occlude the 3D scene when the user is moving quickly. Our experimental evaluation shows that the combination of a 3D input device used with a perspective view, stereo projection, and pop-up depth views, outperforms a 2D mouse in a 3D target acquisition task, in terms of both movement time and throughput, but at the cost of a slightly higher error rate.",
   "authors": {
      "1": {
         "first_name": "Guangyu",
         "last_name": "Wang"
      },
      "2": {
         "first_name": "Michael J.",
         "last_name": "McGuffin"
      },
      "3": {
         "first_name": "François",
         "last_name": "Bérard"
      },
      "4": {
         "first_name": "Jeremy R.",
         "last_name": "Cooperstock"
      }
   },
   "year": 2011,
   "uri": "http://iihm.imag.fr/publication/WMB+11a/",
   "pages": "41-48",
   "bibtype": "inproceedings",
   "id": 539,
   "abbr": "WMB+11a",
   "address": "School of Computer Science, University of Waterloo, Waterloo, Ontario, Canada",
   "date": "2011-05-25",
   "document": "http://iihm.imag.fr/publs/2011/GI2011_Wang_3DPopUp.pdf",
   "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet",
   "booktitle": "GI '11: Proceedings of Graphics Interface 2011"
},
{
   "lang": "en",
   "type_publi": "icolcomlec",
   "title": "Did “Minority Report” Get it Wrong? Superiority of the Mouse over 3D Input in a 3D Placement Task",
   "abstract": "Numerous devices have been invented with three or more degrees of freedom (DoF) to compensate for the assumed limitations of the 2 DoF mouse in the execution of 3D tasks. Nevertheless, the mouse remains the dominant input device in desktop 3D applications, which leads us to pose the following question: is the dominance of the mouse due simply to its widespread availability and long-term user habituation, or is the mouse, in fact, more suitable than dedicated 3D input devices to an important subset of 3D tasks? In the two studies reported in this paper, we measured performance efficiency of a group of subjects in accomplishing a 3D placement task and also observed physiological indicators through biosignal measurements. Subjects used both a standard 2D mouse and three other 3 DoF input devices. Much to our surprise, the standard 2D mouse outperformed the 3D input devices in both studies.",
   "authors": {
      "1": {
         "first_name": "François",
         "last_name": "Bérard"
      },
      "2": {
         "first_name": "Jessica",
         "last_name": "Ip"
      },
      "3": {
         "first_name": "Mitchel",
         "last_name": "Benovoy"
      },
      "4": {
         "first_name": "Dalia",
         "last_name": "El-Shimy"
      },
      "5": {
         "first_name": "Jeffrey R.",
         "last_name": "Blum"
      },
      "6": {
         "first_name": "Jeremy R.",
         "last_name": "Cooperstock"
      }
   },
   "year": 2009,
   "uri": "http://iihm.imag.fr/publication/BIB+09a/",
   "pages": "400--414",
   "bibtype": "inproceedings",
   "id": 450,
   "abbr": "BIB+09a",
   "address": "Berlin, Heidelberg",
   "date": "2009-08-24",
   "document": "http://iihm.imag.fr/publs/2009/INTERACT09_Berard.pdf",
   "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet",
   "booktitle": "Conference Proceedings of INTERACT ’09, the Twelfth IFIP TC13 International Conference on Human-Computer Interaction, Springer LNCS (Lecture Notes in Computer Science)"
}]);