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HCI

Response to [Body-Centric …] by Shoemaker et al.

GENERAL CITE

In this paper, Shoemaker et al. introduced how they design body-centric interaction principles and techniques in a single/multi-user, large wall display scenario. Their proposed interaction techniques are based on the nature of large wall display, mental representations of space for sensorimotor operations [1] and social protocol for collaboration and privacy control. On top of this, they came up with four fundamental design guidelines, as paraphrased, namely, the need to bind personal and extrapersonal space, allow operations within personal space, recognize and respect private space, and enable direct use of body cues. Further, these principles are illustrated in a map application where the single user scenario contains a virtual shadow embodiment, body-based tools/data/controls and dynamic light-source positioning. The multi-user collaborative scenario is also mentioned in which the shadow projection adjustment and access management are specially addressed. In all, this paper offers an pilot example of using body as the interaction platform and though specifically designed for a large wall display, still serves both as an extension of reality-based interaction [2] and whole body interface [3] and as meaningful references for other interaction research on body-related topics.

KEY POINTS

Four design principles:

  • Where a large display system supports interaction at a distance, the interaction shoul dbe mediated through a representation that binds personal and extrapersonal space [1];
  • Leverage the sense of proprioception (a person’s sense of their own body in space, using information gathered from muscles, skin, and joint receptors) by allowing some operations to be performed in the user’s personal space without reliance on visual feedback;
  • Interaction techniques should respect user models of private space, and when possible take advantage of them;
  • Where possible allow users to make direct use of body cues such as facial expression and posture in order to help manage coordination.

Benefits of body-based data storage

  1. Personal files are always in close proximity an readily accessible to the owner, and;
  2. There is little possibility for confusion regarding who “”owns” which storage area.

INSPIRATION

  • Further readings [1, 2, 3]
  • One of the central ideas: how the human body can function as mediator in human-computer interaction -> for bodily memory: how human body can function as the information indexer;
  • Common of all body-based systems: they each leverage a small subset of body properties to support interaction;
  • Should bodily memory consider only personal space or more?
  • Should bodily memory consider interpersonal interaction or not?
  • The use of additional tool (e.g. Wiimote in this case) can be cumbersome.

REFERENCES

1.  Holmes, N.P. and Spence, C. The body schema and multisensory representation(s) of peripersonal space. Cognitive Processing 5, 2 (2004), 94-105.

2.  Jacob, R.J., Girouard, A., Hirshfield, L.M., et al. Reality-based interaction. Proceeding of the twenty-sixth annual CHI conference on Human factors in computing systems  – CHI ’08, (2008), 201.

3.  Klemmer, S.R., Hartmann, B., and Takayama, L. How bodies matter. Proceedings of the 6th ACM conference on Designing Interactive systems  – DIS ’06, (2006), 140.

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About Xiang 'Anthony' Chen

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