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2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics最新文献

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Color Transfer Based on Combining Subtractive Clustering with FCM Clustering 基于减法聚类与FCM聚类相结合的色彩传递
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407930
X. Huo, Jieqing Tan, Rujing Wang
{"title":"Color Transfer Based on Combining Subtractive Clustering with FCM Clustering","authors":"X. Huo, Jieqing Tan, Rujing Wang","doi":"10.1109/CADCG.2007.4407930","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407930","url":null,"abstract":"Color transfer between images is one of the most common tasks in image processing. We can borrow one image 's color characteristics from another. In this paper we investigate an advanced algorithm for transferring color. A combined clustering method is introduced to find the match areas between two images. Subtractive clustering is used with FCM clustering to prevent the latter from falling into local optimum solution and minimize the amount of human labor in finding the number of clustering. We show that this technique can be successfully applied to the adaptive color transferring and speed up the process. The experiment results are satisfactory.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125385677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Free-Form Feature Surface Design Based on Wavelet Multiresolution Analysis 基于小波多分辨率分析的自由曲面设计
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407947
A. Li, Zongde Fang, Guosheng Zhang, Rui Zhang
{"title":"Free-Form Feature Surface Design Based on Wavelet Multiresolution Analysis","authors":"A. Li, Zongde Fang, Guosheng Zhang, Rui Zhang","doi":"10.1109/CADCG.2007.4407947","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407947","url":null,"abstract":"Wavelet method has been found to be very effective in treating geometric modeling due to its properties of localization both in time/spatial and frequency domains. We discuss how wavelet multiresolution techniques can be applied to free-form feature (FFF) surface design, present one 2-stage CAD design approach combining feature concept and multiresolution representation. The approach proves that wavelet multiresolution technology is available for the extraction of FFF in the region of interest (ROI). The wavelet coefficients indicate the degree of detail in the solution; this makes feature/detail manipulation intuitive and convenient. Finally, an integrated framework of FFF surface design is given and discussed by an instance.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126713616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An adaptable sketch-based modeling system 基于草图的适应性建模系统
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407911
Guangzheng Fei, Xin Li
{"title":"An adaptable sketch-based modeling system","authors":"Guangzheng Fei, Xin Li","doi":"10.1109/CADCG.2007.4407911","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407911","url":null,"abstract":"In this paper, we propose a novel approach for inferring a closed smooth surface from sketched contours and deforming it by the following sketch-based gestures. Once the contours are drawn, smooth distance fields are computed within the contours, which are then transformed into height fields. A closed smooth surface is obtained upon the contours and the inferred height fields. The smooth surface can be further deformed by the four deformation gestures defined in the system. Though simple in idea, the system is able to create moderately complex models very quickly and intuitively.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115031325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
An Adaptive Subdivision Method Based on Limit Surface Normal 一种基于极限曲面法线的自适应细分方法
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407857
Zhongxian Chen, Xiaonan Luo, Ruotian Ling
{"title":"An Adaptive Subdivision Method Based on Limit Surface Normal","authors":"Zhongxian Chen, Xiaonan Luo, Ruotian Ling","doi":"10.1109/CADCG.2007.4407857","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407857","url":null,"abstract":"Subdivision surfaces have become a standard technique for free shape modeling. But subdivision schemes are cost-intensive at higher levels of subdivision, making adaptive methods indispensable for visualization and shape modeling. In this paper, we present an adaptive subdivision method based on limit surface normals. The subdivision surfaces generated by the proposed method approximate the limit surfaces better than those generated by traditional methods. Furthermore, the proposed method can be easily applied to any triangular subdivision scheme with C1 or higher degree of continuity.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128213900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
An Efficient Approach to Real-Time Sky Simulation 一种有效的实时天空模拟方法
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407873
Kun Yang, Qicheng Li, Zhangjin Huang, Jia Wang, Guoping Wang
{"title":"An Efficient Approach to Real-Time Sky Simulation","authors":"Kun Yang, Qicheng Li, Zhangjin Huang, Jia Wang, Guoping Wang","doi":"10.1109/CADCG.2007.4407873","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407873","url":null,"abstract":"Real-time sky rendering plays a great role on visualization in many 3D applications. It is difficult to simulate a realistic sky without considering the effect of clouds and the scattering effect of the atmosphere. In this paper, we use a physical scattering model to simulate the sky, and a Perlin noise texture to create highly realistic clouds. Different effects of the sky are also generated by combining the lighting model with various atmospheric constituents.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128291389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stereo Matching for Monotone Texture of Mechanical Parts 机械零件单调纹理的立体匹配
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407883
Long Yan, Zhengxu Zhao, Yiqi Zhou
{"title":"Stereo Matching for Monotone Texture of Mechanical Parts","authors":"Long Yan, Zhengxu Zhao, Yiqi Zhou","doi":"10.1109/CADCG.2007.4407883","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407883","url":null,"abstract":"This article presents an algorithm complementing classical stereo matching technique for mechanical parts. Mechanical parts have special surface characterizations of having monotone texture and specular reflections. Most measurements of mechanical parts by photogrammetry often resort to structured light method. Some preprocessing is applied to alleviate specular reflections and enhance the image quality. The algorithm combines edge detection and area matching. Edge detection determines the disparity range and area matching provides dense disparity map under this guideline. The algorithm solves two problems on the mechanical parts surface, not only improves matching accuracy but also reduces searching range in each scan line.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128567234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D CAD Modeling Using Automatically Reconstructable Assemblies 使用自动重建组件的3D CAD建模
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407892
Yigang Wang, Wanbin Pan, Linqiang Chen, Jun Zhang
{"title":"3D CAD Modeling Using Automatically Reconstructable Assemblies","authors":"Yigang Wang, Wanbin Pan, Linqiang Chen, Jun Zhang","doi":"10.1109/CADCG.2007.4407892","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407892","url":null,"abstract":"The size-driven mechanism is only applied in automatically reconstructing parts by most of recent popular 3D CAD tools, however, most of them have not realized the automatic reconstructing assemblies at all. In this paper, we propose a novel 3D modeling method, which integrates size parameter and change rules into the model, so that an assembly becomes an object which can automatically reconstruct any parts according to the rules once the whole model size changes. Using this method, we not only keep the size- driven mechanism in part, but also make assemblies have the ability of automatic reconstruction. The results of experiments in furniture design application show our method can greatly improve models' flexibility and reusability.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114367022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
DAC Circuit with Multi-threshold Voltage for TFT-LCD Driver IC TFT-LCD驱动IC的多阈值电压DAC电路
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407899
Wei Wu, T. Wei, Xiaoya Fan, Fulong Chen
{"title":"DAC Circuit with Multi-threshold Voltage for TFT-LCD Driver IC","authors":"Wei Wu, T. Wei, Xiaoya Fan, Fulong Chen","doi":"10.1109/CADCG.2007.4407899","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407899","url":null,"abstract":"A new DAC circuit with multi-threshold voltage for large panel TFT-CLD source driver is proposed based on its binary-tree structural characters. Through setting different bulk voltages VB for different CMOS analog switches, the threshold voltages and the on-resistance of CMOS analog switches are reduced and the signal transmission speed from resistance network to output buffer is increased greatly. Physical implementation of this structure is simple and no extra components are required. The proposed DAC circuit structure with 10-bit resolution is designed and simulated using 0.35 mum 13.5 V CMOS high-voltage process, the SPICE simulation results show that the step response delay time is reduced from 35 ns to 17.4 ns (by 50%), as compared to conventional DAC structure.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126402335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Research on the Algorithm of Tool Path Rapid Generation for NC Machining of Molar Prosthesis 磨牙修复体数控加工中刀具轨迹快速生成算法研究
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407946
Y. Bu, Q. Sun, Xiaogang Chen, Qianliang Chen, Xiang Zhang
{"title":"Research on the Algorithm of Tool Path Rapid Generation for NC Machining of Molar Prosthesis","authors":"Y. Bu, Q. Sun, Xiaogang Chen, Qianliang Chen, Xiang Zhang","doi":"10.1109/CADCG.2007.4407946","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407946","url":null,"abstract":"Molar bears complicated features like cusp, ridge and fossa etc, and the CAD model of its prosthesis usually comes in STL format. On the basis of STL, this paper intends to introduce a new topological structure, and will propose the vertex-based entity offset algorithm in order to realize the rapid generation of roughing/finishing tool path for molar prosthesis. Indicated by simulated machining, the proposed algorithm proves excellent stabilization, fast calculation speed and high machining accuracy. This will positively accelerate the clinical application of demotic dental prosthesis CAD/CAM software.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130925958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Recognizing Planar Curve Based on NRLCTI and Match Sub-curve 基于NRLCTI和匹配子曲线的平面曲线识别
2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics Pub Date : 2007-12-26 DOI: 10.1109/CADCG.2007.4407862
Gui-mei Zhang, M. Gao
{"title":"Recognizing Planar Curve Based on NRLCTI and Match Sub-curve","authors":"Gui-mei Zhang, M. Gao","doi":"10.1109/CADCG.2007.4407862","DOIUrl":"https://doi.org/10.1109/CADCG.2007.4407862","url":null,"abstract":"A new method is proposed to match planar curves under affine transformation in this paper. First, the definition of NRLCTI (normalized run length code of conner and tangent and inflexion points) of a two-dimensional curve is given. In terms of NRLCTI, we can match feature points both on object and models preliminarily. Then a method for estimating optimal affine transformation is given based on Frobenius norm. And then a new algorithm is designed to match sub-curves, which can cope with the problem that the curve represented by the feature points is not always unique. Last a novel approach is set up to recognize curves from a line drawing or image. By partitioning the curve into many sub-curve based on landmarks, then matching and recognizing them, the low accuracy for curve approximated by polygon or conies curve can be overcome. Computer simulations demonstrate the effectiveness of the algorithm preliminarily.","PeriodicalId":143046,"journal":{"name":"2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133154629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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