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Real-time image-based lighting of metallic and pearlescent car paints 金属和珠光汽车漆的实时图像照明
Computer Graphics World Pub Date : 2022-04-01 DOI: 10.2139/ssrn.3988576
Tom Kneiphof, Reinhard Klein
{"title":"Real-time image-based lighting of metallic and pearlescent car paints","authors":"Tom Kneiphof, Reinhard Klein","doi":"10.2139/ssrn.3988576","DOIUrl":"https://doi.org/10.2139/ssrn.3988576","url":null,"abstract":"","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"31 1","pages":"36-45"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87825401","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
Learning HDR video reconstruction for dual-exposure sensors with temporally-alternating exposures 学习时间交替曝光双曝光传感器的HDR视频重建
Computer Graphics World Pub Date : 2022-04-01 DOI: 10.2139/ssrn.3997652
Ugur Çogalan, Mojtaba Bemana, K. Myszkowski, H. Seidel, Tobias Ritschel
{"title":"Learning HDR video reconstruction for dual-exposure sensors with temporally-alternating exposures","authors":"Ugur Çogalan, Mojtaba Bemana, K. Myszkowski, H. Seidel, Tobias Ritschel","doi":"10.2139/ssrn.3997652","DOIUrl":"https://doi.org/10.2139/ssrn.3997652","url":null,"abstract":"","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"46 1","pages":"57-72"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89919302","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: 9
Data-driven online traffic reconstructions: Interactively optimizing in virtual reality 数据驱动的在线流量重建:虚拟现实中的交互式优化
Computer Graphics World Pub Date : 2022-04-01 DOI: 10.2139/ssrn.4048702
Hua Wang, Yifan He, Zheng Wang, Guanfeng Li, Yanqiu Xiao, Mingliang Xu
{"title":"Data-driven online traffic reconstructions: Interactively optimizing in virtual reality","authors":"Hua Wang, Yifan He, Zheng Wang, Guanfeng Li, Yanqiu Xiao, Mingliang Xu","doi":"10.2139/ssrn.4048702","DOIUrl":"https://doi.org/10.2139/ssrn.4048702","url":null,"abstract":"","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"14 1","pages":"85-93"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86497943","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
Real-time 3D visualization of forest fire spread based on tree morphology and finite state machine 基于树形态和有限状态机的森林火灾蔓延实时三维可视化
Computer Graphics World Pub Date : 2022-02-01 DOI: 10.2139/ssrn.3982955
Jia-Qi You, Yongjian Huai, Xiaoying Nie, Yuanyuan Chen
{"title":"Real-time 3D visualization of forest fire spread based on tree morphology and finite state machine","authors":"Jia-Qi You, Yongjian Huai, Xiaoying Nie, Yuanyuan Chen","doi":"10.2139/ssrn.3982955","DOIUrl":"https://doi.org/10.2139/ssrn.3982955","url":null,"abstract":"","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"203 1","pages":"109-120"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91026541","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
Automated generation of flat tileable patterns and 3D reduced model simulation 自动生成平铺图案和3D简化模型仿真
Computer Graphics World Pub Date : 2022-01-01 DOI: 10.2139/ssrn.4095672
Iason Manolas, F. Laccone, Gianmarco Cherchi, L. Malomo, Paolo Cignoni
{"title":"Automated generation of flat tileable patterns and 3D reduced model simulation","authors":"Iason Manolas, F. Laccone, Gianmarco Cherchi, L. Malomo, Paolo Cignoni","doi":"10.2139/ssrn.4095672","DOIUrl":"https://doi.org/10.2139/ssrn.4095672","url":null,"abstract":"The computational fabrication community is developing an increasing interest in the use of patterned surfaces, which can be designed to show ornamental and unconventional aesthetics or to perform as a proper structural material with a wide range of features. Geometrically designing and controlling the deformation capabilities of these patterns in response to external stimuli is a complex task due to the large number of variables involved. This paper introduces a method for generating sets of tileable and exchange-able flat patterns as well as a model-reduction strategy that enables their mechanical simulation at interactive rates. This method is included in a design pipeline that aims to turn any general flat surface into a pattern tessellation, which is able to deform under a given loading scenario. To validate our approach, we apply it to di ff erent contexts, including real-scale 3D printed specimens, for which we compare our results with the ones provided by a ground-truth solver.","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"129 ","pages":"141-151"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72542313","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: 1
Drawing characteristics for reproducing traditional hand-made stippling 再现传统手工点画的绘画特点
Computer Graphics World Pub Date : 2015-06-20 DOI: 10.2312/EXP.20151183
Domingo Martín, V. D. Sol, Celia Romo, Tobias Isenberg
{"title":"Drawing characteristics for reproducing traditional hand-made stippling","authors":"Domingo Martín, V. D. Sol, Celia Romo, Tobias Isenberg","doi":"10.2312/EXP.20151183","DOIUrl":"https://doi.org/10.2312/EXP.20151183","url":null,"abstract":"We contribute an in-depth analysis of the characteristics of traditional stippling and relate these to common practices in NPAR stippling techniques as well as to the abilities and limitations of existing printing and display technology. In our work we focus specifically on the properties of stipple dots and consider the dimensions and attributes of pens and paper types used in artistic practice. With our analysis we work toward an understanding of the requirements for digital stippling, with the ultimate goal to provide tools to artists and illustrators that can replicate the stippling process faithfully in the digital domain. From the results of our study we provide a dataset for use in new example-based stippling techniques, derive a taxonomy of characteristics and conditions for the reproduction of stippling, and define future directions of work.","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"133 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2015-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86224854","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: 17
Pattern mapping with quad-pattern-coverable quad-meshes 具有四模式可覆盖四网格的模式映射
Computer Graphics World Pub Date : 2011-08-07 DOI: 10.1145/2037826.2037860
Shiyu Hu, Qing Xing, E. Akleman, Jianer Chen, J. Gross
{"title":"Pattern mapping with quad-pattern-coverable quad-meshes","authors":"Shiyu Hu, Qing Xing, E. Akleman, Jianer Chen, J. Gross","doi":"10.1145/2037826.2037860","DOIUrl":"https://doi.org/10.1145/2037826.2037860","url":null,"abstract":"Pattern mapping (i.e. texturing arbitrary surfaces with repetitive patterns [Soler et al. 2002]) is a particularly useful texture mapping technique, since repeating a pattern reduces the memory cost, by mapping the same texture image to all faces. Moreover, pattern mapping does not require painting a texture image for each surface or generating a global texture map on each surface. Pattern mapping can potentially provide natural-looking materials, such as stone, wood, or marble, as well as human-made materials, such as wallpapers or repeating tiles. One of the main challenges arising when mapping patterns to arbitrary polyhedral meshes is to avoid texture discontinuities caused by singularities non-4-valent vertices in the quad-meshes. These discontinuities can appear at seams along the edges, which can be visually distracting. Unfortunately, it is not always possible to avoid non-4-valent vertices, since 4-regular quadmeshes exist only for genus-1 surfaces.","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"14 1","pages":"455-465"},"PeriodicalIF":0.0,"publicationDate":"2011-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82434709","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: 11
Cyclic twill-woven objects 循环斜纹织物
Computer Graphics World Pub Date : 2010-07-26 DOI: 10.1145/1836845.1836959
E. Akleman, Jianer Chen, Yen-Lin Chen, Qing Xing, J. Gross
{"title":"Cyclic twill-woven objects","authors":"E. Akleman, Jianer Chen, Yen-Lin Chen, Qing Xing, J. Gross","doi":"10.1145/1836845.1836959","DOIUrl":"https://doi.org/10.1145/1836845.1836959","url":null,"abstract":"Any arbitrary twist of the edges of an extended graph rotation system induces a cyclic weaving on the corresponding surface [Akleman et al. 2009]. This recent theoretical result allows us to study generalized versions of textile weaving structures as cyclic weaving structures on arbitrary surfaces. In this work, we extend the study to twill weaving, which is used in fabrics such as denim or gabardine. Biaxial twill is a textile weave in which the weft (filling) threads pass over and under two consecutive warp threads and each row is obtained from the row above it by a shift of 1 unit to the right or to the left. The shift operation creates the characteristic diagonal pattern that makes the twill fabric visually appealing.","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"1 1","pages":"623-631"},"PeriodicalIF":0.0,"publicationDate":"2010-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85562201","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: 14
The effect of task on classification accuracy: using gesture recognition techniques in free-sketch recognition 任务对分类准确率的影响:基于手势识别技术的自由素描识别
Computer Graphics World Pub Date : 2009-08-01 DOI: 10.1145/1572741.1572761
Martin Field, Sam Gordon, Eric Jeffrey Peterson, R. Robinson, T. Stahovich, C. Alvarado
{"title":"The effect of task on classification accuracy: using gesture recognition techniques in free-sketch recognition","authors":"Martin Field, Sam Gordon, Eric Jeffrey Peterson, R. Robinson, T. Stahovich, C. Alvarado","doi":"10.1145/1572741.1572761","DOIUrl":"https://doi.org/10.1145/1572741.1572761","url":null,"abstract":"Generating, grouping, and labeling free-sketch data is a difficult and time-consuming task for both user study participants and researchers. To simplify this process for both parties, we would like to have users draw isolated shapes instead of complete sketches that must be hand-labeled and grouped, and then use this data to train our free-sketch symbol recognizer. However, it is an open question whether shapes draw in isolation accurately reflect the way users draw shapes in a complete diagram. Furthermore, many of the simplest shape recognition algorithms were designed to recognize gestures, and it is not clear that they will generalize to freely-drawn shapes. To answer these questions, we perform experiments using three different recognizers to measure the effect of the data collection task on recognition accuracy. We find that recognizers trained only on isolated shapes can classify freely-sketched shapes as well as the same recognizers trained on free-sketches. We also show that user-specific training examples significantly improve recognition rates. Finally, we introduce a variant of a popular and simple gesture recognition algorithm that recognizes freely-drawn shapes as well as a highly-accurate but more complex recognizer designed explicitly for free-sketch recognition.","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"1 1","pages":"499-512"},"PeriodicalIF":0.0,"publicationDate":"2009-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74208976","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: 32
A top-down approach to teaching introductory computer graphics 一种自上而下的计算机图形学入门教学方法
Computer Graphics World Pub Date : 2003-07-27 DOI: 10.1145/965106.965114
Kelvin Sung, P. Shirley
{"title":"A top-down approach to teaching introductory computer graphics","authors":"Kelvin Sung, P. Shirley","doi":"10.1145/965106.965114","DOIUrl":"https://doi.org/10.1145/965106.965114","url":null,"abstract":"There are two common strategies for teaching introductory computer graphics (CG) programming. The first and most traditional covers the CG field in a bottom-up manner starting from foundational algorithms such as triangle rasterization. The second is top-down and analyzes the functional modules of applications. This paper argues that the top-down approach is well-suited for mature adult students. A course that has successfully implemented a top-down approach is then described.","PeriodicalId":51003,"journal":{"name":"Computer Graphics World","volume":"55 1","pages":"383-391"},"PeriodicalIF":0.0,"publicationDate":"2003-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85615842","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: 26
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