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The Research and Development of the Three-Dimensional Graphic Compression in Digital Yellow River Project

Author: WeiQiang
Tutor: YaoQing
School: Shandong University
Course: Software Engineering
Keywords: Digital Yellow River EdgeBreaker compression algorithm OpenGL technology 3D mesh compression Triangular grid
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 39
Quote: 0
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Abstract


\other shortcut transmission mode, to build integrated digital integrated platform and the virtual environment of the Yellow River basin and its natural, economic, social and other factors, the platform and the environment, powerful system software and mathematical models of the Yellow River govern the development and management of a variety of programs for simulation, analysis and research, which can easily simulate, analyze and study the natural phenomenon of the Yellow River, exploring its internal rules, to provide scientific and technical support for of the Yellow governance, development and management of a variety of Decision . Need to store three-dimensional graphics are widely used in various aspects of the project \Network for transmission. With the rapid development of digital technology and the Internet, as well as the sensor technology, image acquisition technology advances, the amount of data for three-dimensional graphics system of \burden. Order to facilitate storage, network transmission and further processing, they must be efficient compression, reducing storage space and network bandwidth savings in transmission and shorten the transmission delay, decision-making departments to facilitate the rapid reaction. Therefore, the to explore effective three-dimensional graphics compression techniques and methods have become a key issue in the construction and development of the communication network in the current \3D mesh compression technology since the 1990s has been the rapid development and application. Compression algorithm operation associated with the split of the offset data EdgeBreaker not encoded, the algorithm not only have good theoretical analysis gives the lower-bound estimates, in the worst case, the coding efficiency. Three-dimensional graphics compression for \visualization software system for three-dimensional graphics system of \coding efficiency gives the lower-bound estimates (bpv) decoding efficiency linear time and space complexity, thus effectively reducing the bandwidth needed in the three-dimensional graphics data transmission system of \and to reduce the data storage space. EB data format conversion by visualization techniques Of format, using the drawing functions of the original graphics, and after compression and decompression of the graphical display data and compressed original ovtable reconciliation compared to prove the feasibility of this algorithm. Currently, the compression algorithm for three-dimensional graphics based EdgeBreaker compression technology has been adopted by the study group of \applied to the construction of the actual project \

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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