Photo Based Walkthrough Using Prefetch and Caching Strategies
CITRA2007, Kuching Sarawak, July 10-July 12th 2007 (ISBN 983-92576-6-8) ‘Photo Based Walkthrough’ is a real time walkthrough system in a virtual environment constructed from photo images. Since actual photographs are used, the virtual environment can achieve unparalleled realism. On the othe...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2007
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| Subjects: | |
| Online Access: | http://eprints.utp.edu.my/7875/1/CITA2007_Photo_Based_Walkthrough_With_Prefetch_and_Caching_Strategies_v4.pdf http://eprints.utp.edu.my/7875/2/CITA2007_Photo_Based_Walkthrough_With_Prefetch_and_Caching_Strategies_v4.pdf http://eprints.utp.edu.my/7875/ |
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| Summary: | CITRA2007, Kuching Sarawak, July 10-July 12th 2007 (ISBN 983-92576-6-8)
‘Photo Based Walkthrough’ is a real
time walkthrough system in a virtual
environment constructed from photo images.
Since actual photographs are used, the virtual
environment can achieve unparalleled realism.
On the other hand, geometry-based rendering
system is very time consuming to be constructed
especially for a large environment with complex
lighting and visual effects. This research was
carried out by creating an IBR prototype using
OpenGL and C++ programming language. A
large amount of digital photographs were
captured and stored in a secondary storage. The
virtual scene is constructed using retrieval
algorithms that take user coordinates into
consideration. Pre-fetch and caching algorithms
were numerically analyzed to test the viability to
achieve quick rendering by caching the
appropriate images into the main memory
before display. |
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