The project presents an AR-based solution for improving the 3D design model review process, addressing issues such as model portability and 3D software intimidation for non-designers. By utilizing AR technology, the proposed system offers an intuitive, hands-on interface for various stakeholders during design critiques, enhancing collaboration and user engagement. The solution aims for immediate implementation without extensive hardware requirements and emphasizes ease of use and minimal learning curve.

1. Intuitive Natural Mode 3D Design Preview
An ARToolkit video tracking application
Term project presentation by Group 2
Piotr Kulaga,
Hideyuki Fujikawa,
Serge Viranian and
Yosafat Gunawan.
DESC9181 – Semester 1, 2008
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 1

2. Intuitive Natural Mode 3D Design Preview
contents
 Description of the problem and the solution proposed
in our project.
 A brief demonstration.
 Speculative case studies in various classes of design.
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 2

3. Intuitive Natural Mode 3D Design Preview
motivation
Identify an AR technology fit for practical deployment in
the design industry now.
 Objectives
Immediate benefits to users without excessive reliance on dedicated
hardware systems.
Ready for implementation now (technology requirements).
Non disruptive in terms of practise and culture, with particular emphases on a
low learning curve.
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 3

4. Intuitive Natural Mode 3D Design Preview
problem
Portability of 3D design models in context of presentation (critique,
client/stakeholder negotiation).
Intimidation by 3D software interfaces experienced by non-designer parties
involved in the process.
Single user orientation of current interface designs.
 Proposed solution
ARToolkit based 3D design model preview, including limited design element
manipulation.
Intended to be used by various stakeholders in the design critique and
evaluation process.
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 4

5. Intuitive Natural Mode 3D Design Preview
rationale / hypothesis
 Natural mode of operation supports the use by people not familiar with the
skills related to navigation and manipulation of 3D design models.
 The simplicity of implementation and usage is complementary to ad-hock
introduction in test cases by design practitioners.
 The key usability criteria include; favourable ergonomics and a minimal
impact on the user's immediate working and communication environment.
 Exploits proprioception to provide a high degree of precision.
(Sense of the position and orientation of the body and its parts.)
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 5

6. Intuitive Natural Mode 3D Design Preview
implementation
 ARToolkit based fiducial marker cards representing individual elements
and variants of the 3D design model manipulated directly (hands-on) by
participants.
 Video camera(s) fixed on a tripod to support ARToolkit operation.
 The requirement for high fidelity display and face-to-face communication
between multiple participants favour the desktop/projector devices,
rather than HMDs.
 VRML provides a portable cross-platform format suitable for demonstration
of 3D design models.
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 6

7. Intuitive Natural Mode 3D Design Preview
benefits of card-based tangible interface
 Intuitive operation by untrained operators is feasible due to the obvious
relationship between the markers and resulting manipulations.
 Efficiencies gained through a real-world frame of reference and the direct
mapping between hand and object motion including precise ‘eyes off’
interaction.
 A degree of haptic feedback is provided to the user by the marker cards and
their physical behaviour in relation to the real world environment.
 Two handed manipulation is supported.
 Simultaneous interaction by multiple participants is possible.
 Readily integrates into boardroom situations, including portable, onsite and
outdoor scenarios.
26 May 08 'Intuitive Natural Mode 3D Design Preview' - DESC9181 - Group 2 7