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Research and Application on Three Dimensional Geometry Shortcut Modeling Based on the Projection Views

Author: XuSong
Tutor: LuoXiaoNan
School: Sun Yat-sen University
Course: Software Engineering
Keywords: three-dimensional modeling Boolean operations edge scanning re-meshing algorithm cage deformation
CLC: TP391.41
Type: Master's thesis
Year: 2013
Downloads: 70
Quote: 0
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Abstract


As3D technology continues to evolve, the three-dimensional model iswidely used in many fields, such as:3D printing technology input in theconstruction industry building or landscape display, the performance ofthe virtual reality virtual things, film and television animation in3Danimation and computer-aided design of parts in production and otherfields. It is because of the3D model can be widely used, people need touse the3D model has become more and more, and increasingly high qualityrequirements, such as: material and light. The GPU hardware developmentbut also conform to the trend of the large amount of computation of3Dgraphics, and further promote the development of the field of3D. Althoughthe existing mainstream3D modeling software, such as3DMAX, Maya modelingsoftware, to build a true and detailed three-dimensional model, but thehigh requirements of the user, there is the complexity of the modelingprocess, learning threshold, started learning time longer and othermandatory requirements, the availability and use of huge obstacles. Soit is necessary to seek a short period of time, you can get closer to thedesired model of a modeling method.This paper presents a new modeling method based on the projected view.Modeling using this method, the user does not require professionallearning, do not need to have a good art painting skills only need threedifferent viewing angles (front, side, top surface) of the real objectof a2D image photos. In the design of the new modeling method, we firstuse the proposed the contour scanning algorithm based on edge contour feature to scan contours, the method can be more effective than thetraditional contour scanning algorithm and accurate scanning the contours;and then automatically generate a crude model through Boolean operations,this crude model already has the general model of the structure of thefinal model, but the coarse model is very rough, not fine; thus this crudemodel automatically the pliant re grid and smooth processing, we got thea sophisticated images of the model; and re-use Based on the model of thetwo-dimensional view Cutting Algorithm for will be down another fine thedetails of the of the three-dimensional model grid cutting, The CuttingAlgorithm for be able to according to the two-dimensional region in theon the screen obtained the three-dimensional of the corresponding Finally,included in the area of the surface deformation based on Automatic Cagethe fusion method, fusion with the original crude model selected area,and ultimately to obtain a new three-dimensional model.

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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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