Crowd and acoustical modelling in digital cultural heritage
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Date
2014-09
Authors
Lim, Chen Kim
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Abstract
The broad term of heritage refers to the study of human activity in the past and its cultural
narratives and to virtualize heritage means to actualize the heritage content digitally. When
attempting to understand a particular cultural heritage site, the challenge here is that user feels
that they are not able to connect to the past and appreciate the presence due to insufficient
historical information of the heritage sites. Therefore, the main objective of this research is to
bring lives into digital cultural heritage and it would need the inclusions of the audio and visual
information of the surroundings and the people in the present as well as in the past. In this
research, bringing present life into digital cultural heritage includes the crowd and surrounding
audio in panoramic view, and bringing past life includes social behaviours of heterogeneous
crowd transpired in an old trading port. With respect to the construction of panoramic view,
this research proposed a rapid and efficient scheme for generating panoramic view on mobile
platform. The method stores finite images in an array to generate a 360° panoramic view from
different angles of the heritage sites. Besides, an acoustical heritage model is incorporated into
360° panoramic view on mobile platform as one of the elements to bring the present life into
digital cultural heritage. The model includes modulations of sound properties within various
balanced panorama’s azimuthal zones through user’s multi-gesture interaction. Crowd modelling
within panoramic view is the first attempt in adding extra information i.e. crowd to the
heritage sites in panoramic view. Finally, to bring the past life into digital cultural heritage,
microscopic crowd simulation is applied to the complex case of a multi-ethnic trading port, involving
different behavioral patterns through a heterogeneous crowd simulation method. In the
simulation, a high-level control method, hierarchical state-machine and group formation model
are introduced through inter-ethnic interactions formalism. The results of the evaluation and
validation have shown that the proposed schemes, models and methods are efficient, effective
and have successfully been deployed in George Town, Malaysia.
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Keywords
Crowd and Acoustical Modelling , Digital Cultural Heritage