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Simulation of Interactive Cutting Tool for Craniofacial Osteotomy Planning 颅面截骨规划交互式刀具仿真
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.77
M. A. Rana, H. Setan, Z. Majid, A. Chong
{"title":"Simulation of Interactive Cutting Tool for Craniofacial Osteotomy Planning","authors":"M. A. Rana, H. Setan, Z. Majid, A. Chong","doi":"10.1109/CGIV.2007.77","DOIUrl":"https://doi.org/10.1109/CGIV.2007.77","url":null,"abstract":"Engineers and scientists from many fields are using three-dimensional reconstruction for visualization and analysis of physical data. Recent advances in medical imaging and surgical techniques have made possible the correction of severe facial deformities and fractures. Surgical correction techniques often involve the direct manipulation - both relocation and surgical fracture - of the underlying facial bone. Craniofacial surgeons now a days use 3D models of human face to diagnose and analyze abnormalities and hence to plan their basic surgery procedures. To work with these 3D models, it is desirable to develop methods that allow one to interactively manipulate and alter the geometry in an intuitive and efficient manner. In the case of medical/craniofacial data, a baseline interactive task would be to simulate cutting, removal and realignment of tissue. In this paper, we propose a method to simulate a cutting tool using an oriented cube that allows the simulation of tool thickness as well as performing the desired cutting operations on three- dimensional models. This method can be employed interactively, allowing the user to perform the task in an intuitive and easy manner. The tool can be used for osteotomy planning and has been tested on models up to 500,000 polygons in size and the time for cutting varies from 15 ms for small objects (mandible) to 875 ms for large models (complete skull).","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129817602","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
Improvement of Collision Detection Performance of Hierarchies by Using Dynamic-Density of 3D Objects Based on LOD (Level-of-Detail) 基于LOD (Level-of-Detail)的三维物体动态密度改进层次碰撞检测性能
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.50
ChunHo Yi, WonSeop Kim, Taeyong Kim
{"title":"Improvement of Collision Detection Performance of Hierarchies by Using Dynamic-Density of 3D Objects Based on LOD (Level-of-Detail)","authors":"ChunHo Yi, WonSeop Kim, Taeyong Kim","doi":"10.1109/CGIV.2007.50","DOIUrl":"https://doi.org/10.1109/CGIV.2007.50","url":null,"abstract":"This paper is many studies have been conducted focusing on standard objects in 3D space for quick and exact collision detection in 3D graphics. A great deal of these took interest in the improvement of performance speed of collision detection of 3D objects, and in realization of realistic expressions along with the marvelous advancement of 3D graphics hardware. In this paper, features of various collision detection algorithms for standard 3D objects among 3D graphic algorithms were analyzed, and a 'dynamic density' that utilizes the center value and corner points of standard objects in simple hierarchic structures of existing 3D objects is suggested. By using this algorithm, an LOD (level-of-detail) algorithm can be applied to 3D space to improve collision detection of 3D objects in a 3D space. Also, through suggesting efficient rendering of 3D dimensional spaces as an important element of 3D graphics and a realistic expression method, the realism and efficiency of 3D games, which regards the real-time element as an important one, can be greatly improved.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130592411","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
Keypad Inspection System of Cellular Phone 手机键盘检测系统
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.56
D. Gang, S. Han, Byung-Gook Lee, Joon-Jae Lee
{"title":"Keypad Inspection System of Cellular Phone","authors":"D. Gang, S. Han, Byung-Gook Lee, Joon-Jae Lee","doi":"10.1109/CGIV.2007.56","DOIUrl":"https://doi.org/10.1109/CGIV.2007.56","url":null,"abstract":"In this paper we describe a keypad inspection of cellular phones using image processing. Before keypad buttons are assembled, they occur problems such as surface chipping, color difference, and font errors under process. To solve these problems and to improve the quality of the products, automatic keypad inspection is required. This paper deals with development of inspection method so that objects are moved and rotated for matching to reference image, when objects are in random direction and location in images. And then, for inspecting defect of keypad button, all images of the same patterns of keypad buttons are sequentially matched by the proposed method.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134447823","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
Visualizing author attribution using Blobby objects 使用Blobby对象可视化作者归属
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.91
T. Mala, T. Geetha
{"title":"Visualizing author attribution using Blobby objects","authors":"T. Mala, T. Geetha","doi":"10.1109/CGIV.2007.91","DOIUrl":"https://doi.org/10.1109/CGIV.2007.91","url":null,"abstract":"In this paper, we propose a set of distinct features that endeavors to recognize the author of the text documents, independent of the theme of the document. The features are used to distinguish the unique style of every author. The features proposed are independent of the theme, so the features are suitable for any type of text document. Thus, it will be useful for systems that train themselves to particular users in order to identify the author automatically. Blobby objects are modeled based on the author attribution information and the objects depict authors features, author feature weight ages and the author identification for each and every document. The visual display of author attribution is useful in depicting the differences or similarities in the style of author, based on the features as a measure. The blobby objects are implicitly modelled and they move and join together showing the author of the document with the authors feature set values. Gestalt laws were applied to the perceived visual output to visualize author attribution.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115684123","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
Visualization of astrophysical simulations using IDL Object Graphics 使用IDL对象图形可视化天体物理模拟
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.89
Daniel Pomarède, E. Audit, A. Brun, V. Gautard, F. Masset, R. Teyssier, B. Thooris
{"title":"Visualization of astrophysical simulations using IDL Object Graphics","authors":"Daniel Pomarède, E. Audit, A. Brun, V. Gautard, F. Masset, R. Teyssier, B. Thooris","doi":"10.1109/CGIV.2007.89","DOIUrl":"https://doi.org/10.1109/CGIV.2007.89","url":null,"abstract":"The ability to interactively visualize the complex products of three-dimensional simulations is a key aspect in the validation and verification process of numerical algorithms and frameworks. Computational astrophysics, which benefits from the rapidly increasing computing resources offered by the use of massively parallel mainframes, is a challenging play ground to scientific visualization. In this paper, we describe a graphical package developed in the framework of IDL object graphics. The requirements governing its design are defined in the context of the COAST software project which aims at providing an ensemble of enabling tools and techniques for the development and the validation of major simulation codes. This covers a wide range of applications, including cosmological formation of large-scale structures, turbulences in the interstellar medium, stellar magnetohydrodynamics, and formation of proto-planetary systems. The use of IDL object graphics provides an interactive and immersive visualization of complex scenes where various fields of different nature are entangled. Three-dimensional scalar and vector fields distributed over regular mesh grids or more complex structures such as adaptive mesh refinement data, as well as N-body systems, can be visualized in a number of different, complementary ways.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124334682","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: 7
Three-Dimensional EncCon Tree 三维EncCon树
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.82
M. Huang, Quang Vinh Nguyen, W. Lai, Xiaodi Huang
{"title":"Three-Dimensional EncCon Tree","authors":"M. Huang, Quang Vinh Nguyen, W. Lai, Xiaodi Huang","doi":"10.1109/CGIV.2007.82","DOIUrl":"https://doi.org/10.1109/CGIV.2007.82","url":null,"abstract":"This paper describes a three-dimensional extension of a enclosure+connection layout technique, called EncCon tree. The three-dimensional visualization includes layout and navigation. The layout algorithm directly generalizes the two-dimensional EncCon tree layout algorithm to three-dimensional space in which nodes at the same level of the hierarchy are placed onto the same plane. The interactive navigation uses standard three-dimensional viewing techniques which include view transformation, rotation and zoom.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128585557","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
Facial Expression as an Implicit Customers' Feedback and the Challenges 面部表情作为一种隐性顾客反馈及其挑战
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.40
Z. Kasiran, S. Yahya
{"title":"Facial Expression as an Implicit Customers' Feedback and the Challenges","authors":"Z. Kasiran, S. Yahya","doi":"10.1109/CGIV.2007.40","DOIUrl":"https://doi.org/10.1109/CGIV.2007.40","url":null,"abstract":"The human face is rich of information and plays important roles in daily communication such as expressing the emotions nonverbally. Facial expression comes in all varieties. Some are intense and sustained while others are subtle and fleeting. Much progress has been made to build computer systems that recognize facial expression for human computer interaction such as affective computing which apply the automatic facial recognition techniques in human computer interaction where the main idea is that the computer could better adjust its behavior to user's current emotion. Other possible area that could use the advance technology of Facial expression recognition system is the customer satisfaction measurement. The expression of customer being served at the counter is captured to evaluate the satisfaction of the customer. This multimedia approach of customer satisfaction measurement is an alternative of the conventional way of collecting customers' response.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125012829","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: 19
Vision-Based Detection of Guitar Players' Fingertips Without Markers 无标记吉他手指尖的视觉检测
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.88
C. Kerdvibulvech, H. Saito
{"title":"Vision-Based Detection of Guitar Players' Fingertips Without Markers","authors":"C. Kerdvibulvech, H. Saito","doi":"10.1109/CGIV.2007.88","DOIUrl":"https://doi.org/10.1109/CGIV.2007.88","url":null,"abstract":"This paper proposes a vision-based method for detecting the positions of fingertips of a hand playing a guitar. We detect the skin color of a guitar player's hand by using on-line adaptation of color probabilities and a Bayesian classifier which can cope with considerable illumination changes and a dynamic background. The results of hand segmentation are used to train an artificial neural network. A set of Gabor filters is utilized to compute a lower-dimensional representation of the image. Then an LLM (local-linear-mapping)-network is applied to map and estimate fingertip positions smoothly. The system enables us to visually detect the fingertips even when the fingertips are in front of skin-colored surfaces and/or when the fingers are not fully stretched out. Representative experimental results are also presented.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131123331","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: 28
Decision Fusion Based on Voting Scheme for IR and Visible Face Recognition 基于投票方案的红外与可见人脸识别决策融合
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.33
Shahbe Mat Desa, S. Hati
{"title":"Decision Fusion Based on Voting Scheme for IR and Visible Face Recognition","authors":"Shahbe Mat Desa, S. Hati","doi":"10.1109/CGIV.2007.33","DOIUrl":"https://doi.org/10.1109/CGIV.2007.33","url":null,"abstract":"In this paper we present an evaluation study of decision fusion strategies for infrared (IR) and visible face recognition. Several decision fusion methods based on voting scheme (minimization, product and averaging) are discussed and experiments for various conditions of probe set are performed on two databases with paired IR and visible face imageries. The eigenfaces and Fisherfaces classification techniques are used to extract the face features and the performance of fusion methods are discussed.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127933846","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
Visualization of Individual's Knowledge by Analyzing the Citation Networks 基于引文网络分析的个人知识可视化
Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.90
Tze-Haw Huang, M. Huang
{"title":"Visualization of Individual's Knowledge by Analyzing the Citation Networks","authors":"Tze-Haw Huang, M. Huang","doi":"10.1109/CGIV.2007.90","DOIUrl":"https://doi.org/10.1109/CGIV.2007.90","url":null,"abstract":"Visual analysis of knowledge domain is an emerging field of study as science is highly dynamic and constantly evolving. Behind the scene, a knowledge domain is formed and contributed by enormous researchers' publications that describe the common subject of the domain. There is large number of significant activities have been carried out to visualize and identify the knowledge domains of research projects, groups and communities. However, the research on visualizing the knowledge structure at individual level is relative inactive. It is difficult to track down the individual's contribution to the subject and the degree of the knowledge they possess. In this paper, we are attempting to visualize the individual's knowledge structure by analyzing the citation and co-authorship relational structures. We try to analyze and map author's documents to the knowledge domains. By mapping the documents to knowledge domain, we obtain the skeleton of knowledge structure of an individual. Then, we apply the visualization technique to present the result.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131202595","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
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