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Gesture Modeling

Gesture Modeling. Improving Spatial Recognition in Architectural Design Process. Chih-Pin Hsiao Georgia Institute of Technology. In Design Environments. The design process. Why spatial cognition is important? comparing many different (types of ) experiences.

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Gesture Modeling

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  1. Gesture Modeling • Improving Spatial Recognition in Architectural Design Process Chih-Pin Hsiao Georgia Institute of Technology

  2. In Design Environments

  3. The design process • Why spatial cognition is important? comparing many different (types of ) experiences. • Mapping models/drawings to the real world Cleveland Clinic Lou Ruvo Center for Brain Health, opened on July 13, 2009 in Las Vegas, Nevada

  4. The Design Process

  5. The design process • Designers utilize their senses of Vision, Auditory, Touch, and/or Motion in human processing part of design process. • Stimulate the new ideas from an analogy-making process. • Visual and motion experiences are two most important experience for spatial cognitions

  6. The current CAAD System • 1. WIMP user interface • 2. Command Line inputs • 3. For Recording, Rendering, Communication, and Simulation • 4. Long Learning Curve

  7. The Ideal Scenario World Builder, Courtesy of Bruce Branit

  8. Dorta, T. Kalay, Y. et al. Comparing Immersion in Remote and Local Collaborative Ideation through Sketches : A Case Study. Proceedings of the CAAD 2011. Liege, Beilgium, ACM: 25-39. • Many VR projects in Computer Aided Architectural Design field

  9. The goal • Use Hands to Direct Manipulate the Geometry • Simplify the Instruments / Easy to Deploy • Easy to Learn/Use • Help Designers to Imagine their design

  10. Research Questions • To what extent the spatial cognition can be involved in the process by using gestural inputs. • What kind of visual cue do we need? • Can our visual and spatial short term memory support us to do modeling tasks? • What is the best way to create virtual geometry with gestures?

  11. The first implementation

  12. More details

  13. Lesson learned • There are still gaps between computer graphics and the places where the user manipulate the model. • Gestures are still too categorical. • It cannot produce a model with details. • User cannot hold the hands for a long time. • An user will have no idea of what to do in a too flexible user interface.

  14. HOW ARCHITECTS CONSTRUCT THE DRAWINGS?

  15. related work Imaginary Interfaces Gustafson, S., D. Bierwirth, et al. (2010). Imaginary interfaces: spatial interaction with empty hands and without visual feedback. Proceedings of the 23nd annual ACM symposium on User interface software and technology. New York, New York, USA, ACM: 3-12.

  16. The New Implementation In Progress

  17. more details In Progress • Enable Drawings on the touch surfaces (Physical and Virtual) • Only two gestures (for drawing and extrusion) • Users only needs to draw on one surface and extrude it for the shape of building. • Projecting the visual cue one the users’ hand to assist them

  18. proposed experiments • Question: To what extent can the spatial cognition be improved in the design process by using gestural inputs? • What’s the differences between the prototype and the CAD programs? • How does the third dimension (Z) affects the users in gestural input system? In other words, what’s the limitation of users’ short-term memory when they work on this prototype. • Quantitative: • The accuracy of drawing in the air. • The speed of completing the drawings. • Qualitative: • Post-Questionnaire

  19. Futures • Adding contextual visual cue for indicating the current state • Predicting the designers’ intents and adopting their needs • More ways of supporting creative design - parametric modeling, solid modeling, building information modeling • Constraints of manipulating virtual objects

  20. Conclusions • Advantages • Creating geometries in 3D environment • Direct manipulate the geometries • Help to imagine the virtual world? • Shortcomings • Might be slower?

  21. Thanks!!Gesture Modeling • Improving Spatial Recognition in Architectural Design Process Chih-Pin Hsiao Georgia Institute of Technology

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