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Application of Texture Synthesis for Virtual Plant Visibility

Author: PingWei
Tutor: FuHeGang
School: Chongqing University
Course: Computer Software and Theory
Keywords: Texture Synthesis Drawing based texture synthesis Accelerated texture synthesis algorithm Model plant organs Virtual plant growth model
CLC: TP391.41
Type: Master's thesis
Year: 2009
Downloads: 97
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Abstract


Sample-based texture synthesis in recent years developed a new texture synthesis technology, the traditional method used to solve the seams appear, twisting and parameter adjustment and other issues. It is in image editing, image repair damaged, data compression, fast data transmission network, large-scale scene generation and photorealistic rendering and so have a wide range of applications, is the current computer graphics, computer vision and image processing and other fields research focus. Main innovation of this paper is as follows: First, focus on the two-dimensional texture synthesis theory and algorithms, focusing on analysis and research WEI point-based texture synthesis method, and EFROS basic block-based texture synthesis of the basic method. The two algorithms based on the time complexity of the problem is too high, we propose a method based on multi-resolution texture synthesis. Experimental results show that the multi-resolution texture synthesis method can not affect the case of image synthesis results significantly improved texture synthesis processing speed. Then, this paper texture synthesis techniques to construct a model of the real plant organs. Sample-based texture synthesis method to synthesize oranges, apples and bananas texture. Experimental results show that the existing texture synthesis method for oranges that have texture very random objects, synthetic effect is very good, but for apples, bananas irregular textures of objects that there were two problems. First, you can not get a whole apples and bananas can contain surface texture features small drawing; secondly, because the randomness of synthesis methods, texture synthesis method results obtained image is not in line with expectations. This model for oranges, using a texture synthesis method oranges texture synthesis model diagram, and then use the texture mapping directly attached to the Apple model surface map; model for bananas directly using texture mapping method to construct the whole banana model; model for Apple , then use a procedural texture synthesis method, by constructing Apple diffuse illumination model surface, adjusting parameters to simulate diffuse apple surface detail. Experimental results show that the texture synthesis method can be constructed close to the real oranges, apples and bananas model. Finally, this paper establishes a complete growth model orange trees and oranges in front of the constructed model used in organ growth model of the orange trees: orange tree growing in a particular stage of the L-grammar, which is the flower withers stage, using OPENGL package calls plant organ models * .3 ds file, orange flower organ models to replace the original model. Therefore, in complete growth model orange trees, demonstrating the effect is the original orange flowers fade away, instead of orange fruit orange flower, flowers appeared in the original position.

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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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