Modeling and Retrieval of Moving Objects
Mohammad Nabil,
Anne Hee Hiong Ngu,
John Shepherd
Journal of Multimedia Tools and Applications, ??? 2000
This paper presents a symbolic formalism for modeling
and retrieving video data via the moving objects contained
in the video images.
The model integrates the representations of individual moving objects
in a scene with the time-varying relationships between them by incorporating
both the notions of object tracks and temporal sequences of PIRs (projection
interval relationships).
The model is supported by a set of operations which form
the basis of a moving object algebra.
This algebra allows one to retrieve scenes and information from
scenes by specifying both spatial and temporal properties of the
objects involved.
It also provides operations to create new scenes from existing
ones.
A prototype implementation is described which allows queries
to be specified either via an animation sketch or using the moving
object algebra.
Keys:
content-based image retrieval,
spatial database,
spatio-temporal database,
spatial relationships,
data model
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