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dc.contributor.authorJia, Jinyuanen
dc.contributor.authorWang, Pingen
dc.contributor.authorWang, Senen
dc.contributor.authorWang, Yuyingen
dc.date.accessioned2015-08-17T10:10:51Z
dc.date.available2015-08-17T10:10:51Z
dc.date.issued2007
dc.identifier.citationJia, J. et. al. (2007) An integer incremental AOI algorithm for progressive downloading of large scale VRML environments. In: Hui, K. et al. (eds.) Technologies for e-learning and digital entertainment : Second International Conference, Edutainment 2007, Hong Kong, China, June 11-13, 2007. Proceedings. pp 711-722.en
dc.identifier.isbn9783540730101
dc.identifier.urihttp://hdl.handle.net/2086/11139
dc.description.abstractProgressive data transmission is critical for implementing interactive walkthrough of large scale distributed virtual environments on Internet. This paper proposes an incremental AOI (Area of Interests) algorithm to determine dynamically which VRML objects should be downloaded while the viewpoint is moving in a VRML environment at each step. Our method has three major steps: (1) to divide the entire VRML ground uniformly into a rectangular mesh (m*n grids) along x-axis and y-axis respectively and store all the VRML objects overlapped by each grid into an adjacent list; (2) statically to determine all the grids overlapped by an AOI according to spatial coherence; (3) dynamically to determine newly visible and invisible grids overlapped by a moving AOI at each step, according to the temporal coherence between two consecutive AOI circles; (4) at each step, only newly overlapped VRML objects should be downloaded and rendered incrementally. Thus, the required VRML data downloads can be decreased dramatically at each moving step. Further, the proposed AOI algorithm is an integer incremental algorithm without multiplication, divisions and floating operations, and also it is suitable for hardware implementation.en
dc.language.isoenen
dc.publisherSpringeren
dc.titleAn integer incremental AOI algorithm for progressive downloading of large scale VRML environments.en
dc.typeBook chapteren
dc.identifier.doihttp://dx.doi.org/10.1007/978-3-540-73011-8_68
dc.funderN/Aen
dc.projectidN/Aen


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