Abstract
This paper reports on a study concerning the
comprehension of an experimental hand motion language in
shape conceptualization. Hand motion is regarded as a
prospective input mechanism for computer aided conceptual
design systems for initial shape design of consumer durables.
Our hand motion language has been developed based on the
analysis of the (a) information necessary to describe shape
concepts, (b) descriptive and indicative capabilities of human
hands, and (c) cognitive and perceptive aspects of processing
hand motions. This language was used in designed experiments
to describe simple, compound and hybrid shapes for designers
and tested with respect to comprehensibility. The subjects were
asked to reconstruct the presented shapes by sketching on paper.
Comprehension of the hand motion language has been
evaluated in terms of fidelity and efficiency. Fidelity was
expressed in terms of the number of deviations of the sketches
of the test shapes from the existing CAD models. Efficiency
was expressed as the proportion of the time needed to
understand the test shapes communicated by hand motions and
the time needed for the presentation. The results clearly indicate
the potentials of a HML in shape conceptualization. In addition,
the experiments revealed several new issues related to the
application of the hand motion language in a multi-modal
interface. The most important one is the need of chunking of the
hand motion sequences in a way that enables the computer
system to reliably reconstruct shapes and the designers to
understand the formation of shapes on a higher semantic level.
These issues will be addressed in our future research
Original language | English |
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Title of host publication | Proceedings of DETCí03 |
Number of pages | 15 |
Publication date | 2003 |
Article number | DETC2003/CIE-48286 |
DOIs | |
Publication status | Published - 2003 |
Externally published | Yes |
Event | ASME 2003 Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Chicago, United States Duration: 2 Sept 2003 → 6 Sept 2003 |
Conference
Conference | ASME 2003 Design Engineering Technical Conferences and Computers and Information in Engineering Conference |
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Country/Territory | United States |
City | Chicago |
Period | 02/09/2003 → 06/09/2003 |