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ACM SIGGRAPH Asia 2010 papers最新文献

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Session details: Image & video editing 会议细节:图像和视频编辑
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-15 DOI: 10.1145/3254534
Ariel Shamir
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引用次数: 0
Session details: Reconstructing and editing geometry 会话细节:重建和编辑几何
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-15 DOI: 10.1145/3254535
Hugues Hoppe
{"title":"Session details: Reconstructing and editing geometry","authors":"Hugues Hoppe","doi":"10.1145/3254535","DOIUrl":"https://doi.org/10.1145/3254535","url":null,"abstract":"","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116167996","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
Motion fields for interactive character locomotion 用于交互角色移动的运动场
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-15 DOI: 10.1145/1866158.1866160
Yongjoon Lee, K. Wampler, G. Bernstein, J. Popović, Zoran Popovic
{"title":"Motion fields for interactive character locomotion","authors":"Yongjoon Lee, K. Wampler, G. Bernstein, J. Popović, Zoran Popovic","doi":"10.1145/1866158.1866160","DOIUrl":"https://doi.org/10.1145/1866158.1866160","url":null,"abstract":"We propose a novel representation of motion data and control that enables characters with both highly agile responses to user input and natural handling of arbitrary external disturbances. The representation organizes motion data as samples in a high dimensional generalization of a vector field we call a 'motion field'. Our runtime motion synthesis mechanism freely 'flows' in the motion field and is capable of creating novel and natural motions that are highly-responsive to the real time user input, and generally not explicitly specified in the data.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123851322","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
Session details: Computational imagery 会话细节:计算图像
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-15 DOI: 10.1145/3254540
Kiriakos N. Kutulakos
{"title":"Session details: Computational imagery","authors":"Kiriakos N. Kutulakos","doi":"10.1145/3254540","DOIUrl":"https://doi.org/10.1145/3254540","url":null,"abstract":"","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116745862","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
Automatic reconstruction of tree skeletal structures from point clouds 从点云自动重建树骨架结构
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-01 DOI: 10.1145/1866158.1866177
Yotam Livny, F. Yan, Matt Olson, Baoquan Chen, Hao Zhang, Jihad El-Sana
{"title":"Automatic reconstruction of tree skeletal structures from point clouds","authors":"Yotam Livny, F. Yan, Matt Olson, Baoquan Chen, Hao Zhang, Jihad El-Sana","doi":"10.1145/1866158.1866177","DOIUrl":"https://doi.org/10.1145/1866158.1866177","url":null,"abstract":"Trees, bushes, and other plants are ubiquitous in urban environments, and realistic models of trees can add a great deal of realism to a digital urban scene. There has been much research on modeling tree structures, but limited work on reconstructing the geometry of real-world trees -- even then, most works have focused on reconstruction from photographs aided by significant user interaction. In this paper, we perform active laser scanning of real-world vegetation and present an automatic approach that robustly reconstructs skeletal structures of trees, from which full geometry can be generated. The core of our method is a series of global optimizations that fit skeletal structures to the often sparse, incomplete, and noisy point data. A significant benefit of our approach is its ability to reconstruct multiple overlapping trees simultaneously without segmentation. We demonstrate the effectiveness and robustness of our approach on many raw scans of different tree varieties.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117110357","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: 272
Detail-preserving fully-Eulerian interface tracking framework 保留细节的全欧拉接口跟踪框架
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-01 DOI: 10.1145/1866158.1866198
Nambin Heo, Hyeongseok Ko
{"title":"Detail-preserving fully-Eulerian interface tracking framework","authors":"Nambin Heo, Hyeongseok Ko","doi":"10.1145/1866158.1866198","DOIUrl":"https://doi.org/10.1145/1866158.1866198","url":null,"abstract":"This paper introduces a fully-Eulerian interface tracking framework that preserves the fine details of liquids. Unlike existing Eulerian methods, the proposed framework shows good mass conservation even though it does not employ conventional Lagrangian elements. In addition, it handles complex merging and splitting of interfaces robustly due to the implicit representation. To model the interface more accurately, a high order polynomial reconstruction of the signed distance function is utilized based on a number of sub-grid quadrature points. By combining this accurate polynomial representation with a high-order re-initialization method, the proposed framework preserves the detailed structures of the interface. Moreover, the method is simple to implement, unconditionally stable, and is suitable for parallel computing environments.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114289556","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: 37
Light reallocation for high contrast projection using an analog micromirror array 利用模拟微镜阵列实现高对比度投影的光重分配
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-01 DOI: 10.1145/1866158.1866166
R. Hoskinson, B. Stoeber, W. Heidrich, S. Fels
{"title":"Light reallocation for high contrast projection using an analog micromirror array","authors":"R. Hoskinson, B. Stoeber, W. Heidrich, S. Fels","doi":"10.1145/1866158.1866166","DOIUrl":"https://doi.org/10.1145/1866158.1866166","url":null,"abstract":"We demonstrate for the first time a proof of concept projector with a secondary array of individually controllable, analog micromirrors added to improve the contrast and peak brightness of conventional projectors. The micromirrors reallocate the light of the projector lamp from the dark parts towards the light parts of the image, before it reaches the primary image modulator. Each element of the analog micromirror array can be tipped/tilted to divert portions of the light from the lamp in two dimensions. By directing these mirrors on an image-dependent basis, we can increase both the peak intensity of the projected image as well as its contrast. In this paper, we describe and analyze the optical design for projectors using this light reallocation approach. We also discuss software algorithms to compute the best light reallocation pattern for a given input image, using the constraints of real hardware. We perform extensive simulations of this process to evaluate image quality and performance characteristics of this process. Finally, we present a first proof-of-concept implementation of this approach using a prototype analog micromirror device.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128451406","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: 25
Content-adaptive parallax barriers: optimizing dual-layer 3D displays using low-rank light field factorization 内容自适应视差屏障:利用低阶光场分解优化双层3D显示器
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-01 DOI: 10.1145/1866158.1866164
Douglas Lanman, Matthew Hirsch, Yunhee Kim, R. Raskar
{"title":"Content-adaptive parallax barriers: optimizing dual-layer 3D displays using low-rank light field factorization","authors":"Douglas Lanman, Matthew Hirsch, Yunhee Kim, R. Raskar","doi":"10.1145/1866158.1866164","DOIUrl":"https://doi.org/10.1145/1866158.1866164","url":null,"abstract":"We optimize automultiscopic displays built by stacking a pair of modified LCD panels. To date, such dual-stacked LCDs have used heuristic parallax barriers for view-dependent imagery: the front LCD shows a fixed array of slits or pinholes, independent of the multi-view content. While prior works adapt the spacing between slits or pinholes, depending on viewer position, we show both layers can also be adapted to the multi-view content, increasing brightness and refresh rate. Unlike conventional barriers, both masks are allowed to exhibit non-binary opacities. It is shown that any 4D light field emitted by a dual-stacked LCD is the tensor product of two 2D masks. Thus, any pair of 1D masks only achieves a rank-1 approximation of a 2D light field. Temporal multiplexing of masks is shown to achieve higher-rank approximations. Non-negative matrix factorization (NMF) minimizes the weighted Euclidean distance between a target light field and that emitted by the display. Simulations and experiments characterize the resulting content-adaptive parallax barriers for low-rank light field approximation.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126501088","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: 177
A comparative study of image retargeting 图像重定位的比较研究
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-01 DOI: 10.1145/1866158.1866186
Michael Rubinstein, D. Gutierrez, O. Sorkine-Hornung, Ariel Shamir
{"title":"A comparative study of image retargeting","authors":"Michael Rubinstein, D. Gutierrez, O. Sorkine-Hornung, Ariel Shamir","doi":"10.1145/1866158.1866186","DOIUrl":"https://doi.org/10.1145/1866158.1866186","url":null,"abstract":"The numerous works on media retargeting call for a methodological approach for evaluating retargeting results. We present the first comprehensive perceptual study and analysis of image retargeting. First, we create a benchmark of images and conduct a large scale user study to compare a representative number of state-of-the-art retargeting methods. Second, we present analysis of the users' responses, where we find that humans in general agree on the evaluation of the results and show that some retargeting methods are consistently more favorable than others. Third, we examine whether computational image distance metrics can predict human retargeting perception. We show that current measures used in this context are not necessarily consistent with human rankings, and demonstrate that better results can be achieved using image features that were not previously considered for this task. We also reveal specific qualities in retargeted media that are more important for viewers. The importance of our work lies in promoting better measures to assess and guide retargeting algorithms in the future. The full benchmark we collected, including all images, retargeted results, and the collected user data, are available to the research community for further investigation at http://people.csail.mit.edu/mrub/retargetme.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134300824","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: 466
Animation wrinkling: augmenting coarse cloth simulations with realistic-looking wrinkles 动画起皱:用逼真的皱纹增强粗布模拟
ACM SIGGRAPH Asia 2010 papers Pub Date : 2010-12-01 DOI: 10.1145/1866158.1866183
{"title":"Animation wrinkling: augmenting coarse cloth simulations with realistic-looking wrinkles","authors":"","doi":"10.1145/1866158.1866183","DOIUrl":"https://doi.org/10.1145/1866158.1866183","url":null,"abstract":"Moving garments and other cloth objects exhibit dynamic, complex wrinkles. Generating such wrinkles in a virtual environment currently requires either a time-consuming manual design process, or a computationally expensive simulation, often combined with accurate parameter-tuning requiring specialized animator skills. Our work presents an alternative approach for wrinkle generation which combines coarse cloth animation with a post-processing step for efficient generation of realistic-looking fine dynamic wrinkles. Our method uses the stretch tensor of the coarse animation output as a guide for wrinkle placement. To ensure temporal coherence, the placement mechanism uses a space-time approach allowing not only for smooth wrinkle appearance and disappearance, but also for wrinkle motion, splitting, and merging over time. Our method generates believable wrinkle geometry using specialized curve-based implicit deformers. The method is fully automatic and has a single user control parameter that enables the user to mimic different fabrics.","PeriodicalId":138648,"journal":{"name":"ACM SIGGRAPH Asia 2010 papers","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114949015","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: 8
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