--- _id: '1814' abstract: - lang: eng text: 'We present an efficient wavefront tracking algorithm for animating bodies of water that interact with their environment. Our contributions include: a novel wavefront tracking technique that enables dispersion, refraction, reflection, and diffraction in the same simulation; a unique multivalued function interpolation method that enables our simulations to elegantly sidestep the Nyquist limit; a dispersion approximation for efficiently amplifying the number of simulated waves by several orders of magnitude; and additional extensions that allow for time-dependent effects and interactive artistic editing of the resulting animation. Our contributions combine to give us multitudes more wave details than similar algorithms, while maintaining high frame rates and allowing close camera zooms.' article_number: '27' author: - first_name: Stefan full_name: Jeschke, Stefan id: 44D6411A-F248-11E8-B48F-1D18A9856A87 last_name: Jeschke - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 citation: ama: Jeschke S, Wojtan C. Water wave animation via wavefront parameter interpolation. ACM Transactions on Graphics. 2015;34(3). doi:10.1145/2714572 apa: Jeschke, S., & Wojtan, C. (2015). Water wave animation via wavefront parameter interpolation. ACM Transactions on Graphics. ACM. https://doi.org/10.1145/2714572 chicago: Jeschke, Stefan, and Chris Wojtan. “Water Wave Animation via Wavefront Parameter Interpolation.” ACM Transactions on Graphics. ACM, 2015. https://doi.org/10.1145/2714572. ieee: S. Jeschke and C. Wojtan, “Water wave animation via wavefront parameter interpolation,” ACM Transactions on Graphics, vol. 34, no. 3. ACM, 2015. ista: Jeschke S, Wojtan C. 2015. Water wave animation via wavefront parameter interpolation. ACM Transactions on Graphics. 34(3), 27. mla: Jeschke, Stefan, and Chris Wojtan. “Water Wave Animation via Wavefront Parameter Interpolation.” ACM Transactions on Graphics, vol. 34, no. 3, 27, ACM, 2015, doi:10.1145/2714572. short: S. Jeschke, C. Wojtan, ACM Transactions on Graphics 34 (2015). date_created: 2018-12-11T11:54:09Z date_published: 2015-04-01T00:00:00Z date_updated: 2023-02-23T10:15:40Z day: '01' ddc: - '000' department: - _id: ChWo doi: 10.1145/2714572 ec_funded: 1 file: - access_level: open_access checksum: 67c9f4fa370def68cdf31299e48bc91f content_type: application/pdf creator: system date_created: 2018-12-12T10:12:15Z date_updated: 2020-07-14T12:45:17Z file_id: '4933' file_name: IST-2016-575-v1+1_wavefront_preprint.pdf file_size: 23712153 relation: main_file file_date_updated: 2020-07-14T12:45:17Z has_accepted_license: '1' intvolume: ' 34' issue: '3' language: - iso: eng month: '04' oa: 1 oa_version: Submitted Version project: - _id: 25357BD2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 24352-N23 name: 'Deep Pictures: Creating Visual and Haptic Vector Images' - _id: 2533E772-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '638176' name: Efficient Simulation of Natural Phenomena at Extremely Large Scales publication: ACM Transactions on Graphics publication_status: published publisher: ACM publist_id: '5292' pubrep_id: '575' quality_controlled: '1' scopus_import: 1 status: public title: Water wave animation via wavefront parameter interpolation type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 34 year: '2015' ... --- _id: '1633' abstract: - lang: eng text: "We present a method for simulating brittle fracture under the assumptions of quasi-static linear elastic fracture mechanics (LEFM). Using the boundary element method (BEM) and Lagrangian crack-fronts, we produce highly detailed fracture surfaces. The computational cost of the BEM is alleviated by using a low-resolution mesh and interpolating the resulting stress intensity factors when propagating the high-resolution crack-front.\r\n\r\nOur system produces physics-based fracture surfaces with high spatial and temporal resolution, taking spatial variation of material toughness and/or strength into account. It also allows for crack initiation to be handled separately from crack propagation, which is not only more reasonable from a physics perspective, but can also be used to control the simulation.\r\n\r\nSeparating the resolution of the crack-front from the resolution of the computational mesh increases the efficiency and therefore the amount of visual detail on the resulting fracture surfaces. The BEM also allows us to re-use previously computed blocks of the system matrix." article_number: '151' author: - first_name: David full_name: Hahn, David id: 357A6A66-F248-11E8-B48F-1D18A9856A87 last_name: Hahn - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 citation: ama: 'Hahn D, Wojtan C. High-resolution brittle fracture simulation with boundary elements. In: Vol 34. ACM; 2015. doi:10.1145/2766896' apa: 'Hahn, D., & Wojtan, C. (2015). High-resolution brittle fracture simulation with boundary elements (Vol. 34). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States: ACM. https://doi.org/10.1145/2766896' chicago: Hahn, David, and Chris Wojtan. “High-Resolution Brittle Fracture Simulation with Boundary Elements,” Vol. 34. ACM, 2015. https://doi.org/10.1145/2766896. ieee: 'D. Hahn and C. Wojtan, “High-resolution brittle fracture simulation with boundary elements,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States, 2015, vol. 34, no. 4.' ista: 'Hahn D, Wojtan C. 2015. High-resolution brittle fracture simulation with boundary elements. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques vol. 34, 151.' mla: Hahn, David, and Chris Wojtan. High-Resolution Brittle Fracture Simulation with Boundary Elements. Vol. 34, no. 4, 151, ACM, 2015, doi:10.1145/2766896. short: D. Hahn, C. Wojtan, in:, ACM, 2015. conference: end_date: 2015-08-13 location: Los Angeles, CA, United States name: 'SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques' start_date: 2015-08-09 date_created: 2018-12-11T11:53:09Z date_published: 2015-07-27T00:00:00Z date_updated: 2023-09-07T12:02:56Z day: '27' ddc: - '000' department: - _id: ChWo doi: 10.1145/2766896 ec_funded: 1 file: - access_level: open_access checksum: 955aee971983f6b6152bcc1c9b4a7c20 content_type: application/pdf creator: system date_created: 2018-12-12T10:15:13Z date_updated: 2020-07-14T12:45:07Z file_id: '5131' file_name: IST-2016-609-v1+1_FractureBEM.pdf file_size: 20154270 relation: main_file file_date_updated: 2020-07-14T12:45:07Z has_accepted_license: '1' intvolume: ' 34' issue: '4' language: - iso: eng month: '07' oa: 1 oa_version: Submitted Version project: - _id: 2533E772-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '638176' name: Efficient Simulation of Natural Phenomena at Extremely Large Scales publication_status: published publisher: ACM publist_id: '5522' pubrep_id: '609' quality_controlled: '1' related_material: record: - id: '839' relation: dissertation_contains status: public scopus_import: 1 status: public title: High-resolution brittle fracture simulation with boundary elements type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 34 year: '2015' ... --- _id: '1629' abstract: - lang: eng text: We propose a method for propagating edit operations in 2D vector graphics, based on geometric relationship functions. These functions quantify the geometric relationship of a point to a polygon, such as the distance to the boundary or the direction to the closest corner vertex. The level sets of the relationship functions describe points with the same relationship to a polygon. For a given query point, we first determine a set of relationships to local features, construct all level sets for these relationships, and accumulate them. The maxima of the resulting distribution are points with similar geometric relationships. We show extensions to handle mirror symmetries, and discuss the use of relationship functions as local coordinate systems. Our method can be applied, for example, to interactive floorplan editing, and it is especially useful for large layouts, where individual edits would be cumbersome. We demonstrate populating 2D layouts with tens to hundreds of objects by propagating relatively few edit operations. article_number: '15' author: - first_name: Paul full_name: Guerrero, Paul last_name: Guerrero - first_name: Stefan full_name: Jeschke, Stefan id: 44D6411A-F248-11E8-B48F-1D18A9856A87 last_name: Jeschke - first_name: Michael full_name: Wimmer, Michael last_name: Wimmer - first_name: Peter full_name: Wonka, Peter last_name: Wonka citation: ama: Guerrero P, Jeschke S, Wimmer M, Wonka P. Edit propagation using geometric relationship functions. ACM Transactions on Graphics. 2014;33(2). doi:10.1145/2591010 apa: Guerrero, P., Jeschke, S., Wimmer, M., & Wonka, P. (2014). Edit propagation using geometric relationship functions. ACM Transactions on Graphics. ACM. https://doi.org/10.1145/2591010 chicago: Guerrero, Paul, Stefan Jeschke, Michael Wimmer, and Peter Wonka. “Edit Propagation Using Geometric Relationship Functions.” ACM Transactions on Graphics. ACM, 2014. https://doi.org/10.1145/2591010. ieee: P. Guerrero, S. Jeschke, M. Wimmer, and P. Wonka, “Edit propagation using geometric relationship functions,” ACM Transactions on Graphics, vol. 33, no. 2. ACM, 2014. ista: Guerrero P, Jeschke S, Wimmer M, Wonka P. 2014. Edit propagation using geometric relationship functions. ACM Transactions on Graphics. 33(2), 15. mla: Guerrero, Paul, et al. “Edit Propagation Using Geometric Relationship Functions.” ACM Transactions on Graphics, vol. 33, no. 2, 15, ACM, 2014, doi:10.1145/2591010. short: P. Guerrero, S. Jeschke, M. Wimmer, P. Wonka, ACM Transactions on Graphics 33 (2014). date_created: 2018-12-11T11:53:08Z date_published: 2014-03-01T00:00:00Z date_updated: 2021-01-12T06:52:06Z day: '01' ddc: - '000' department: - _id: ChWo doi: 10.1145/2591010 file: - access_level: open_access checksum: 7f91e588a4e888610313b98271e6418e content_type: application/pdf creator: system date_created: 2018-12-12T10:11:22Z date_updated: 2020-07-14T12:45:07Z file_id: '4876' file_name: IST-2016-577-v1+1_2014.TOG.Paul.EditingPropagation.final.pdf file_size: 9832561 relation: main_file file_date_updated: 2020-07-14T12:45:07Z has_accepted_license: '1' intvolume: ' 33' issue: '2' language: - iso: eng month: '03' oa: 1 oa_version: Submitted Version publication: ACM Transactions on Graphics publication_status: published publisher: ACM publist_id: '5526' pubrep_id: '577' quality_controlled: '1' status: public title: Edit propagation using geometric relationship functions type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 33 year: '2014' ... --- _id: '1854' abstract: - lang: eng text: In this paper, we present a method for non-rigid, partial shape matching in vector graphics. Given a user-specified query region in a 2D shape, similar regions are found, even if they are non-linearly distorted. Furthermore, a non-linear mapping is established between the query regions and these matches, which allows the automatic transfer of editing operations such as texturing. This is achieved by a two-step approach. First, pointwise correspondences between the query region and the whole shape are established. The transformation parameters of these correspondences are registered in an appropriate transformation space. For transformations between similar regions, these parameters form surfaces in transformation space, which are extracted in the second step of our method. The extracted regions may be related to the query region by a non-rigid transform, enabling non-rigid shape matching. In this paper, we present a method for non-rigid, partial shape matching in vector graphics. Given a user-specified query region in a 2D shape, similar regions are found, even if they are non-linearly distorted. Furthermore, a non-linear mapping is established between the query regions and these matches, which allows the automatic transfer of editing operations such as texturing. This is achieved by a two-step approach. First, pointwise correspondences between the query region and the whole shape are established. The transformation parameters of these correspondences are registered in an appropriate transformation space. For transformations between similar regions, these parameters form surfaces in transformation space, which are extracted in the second step of our method. The extracted regions may be related to the query region by a non-rigid transform, enabling non-rigid shape matching. author: - first_name: Paul full_name: Guerrero, Paul last_name: Guerrero - first_name: Thomas full_name: Auzinger, Thomas id: 4718F954-F248-11E8-B48F-1D18A9856A87 last_name: Auzinger orcid: 0000-0002-1546-3265 - first_name: Michael full_name: Wimmer, Michael last_name: Wimmer - first_name: Stefan full_name: Jeschke, Stefan id: 44D6411A-F248-11E8-B48F-1D18A9856A87 last_name: Jeschke citation: ama: Guerrero P, Auzinger T, Wimmer M, Jeschke S. Partial shape matching using transformation parameter similarity. Computer Graphics Forum. 2014;34(1):239-252. doi:10.1111/cgf.12509 apa: Guerrero, P., Auzinger, T., Wimmer, M., & Jeschke, S. (2014). Partial shape matching using transformation parameter similarity. Computer Graphics Forum. Wiley. https://doi.org/10.1111/cgf.12509 chicago: Guerrero, Paul, Thomas Auzinger, Michael Wimmer, and Stefan Jeschke. “Partial Shape Matching Using Transformation Parameter Similarity.” Computer Graphics Forum. Wiley, 2014. https://doi.org/10.1111/cgf.12509. ieee: P. Guerrero, T. Auzinger, M. Wimmer, and S. Jeschke, “Partial shape matching using transformation parameter similarity,” Computer Graphics Forum, vol. 34, no. 1. Wiley, pp. 239–252, 2014. ista: Guerrero P, Auzinger T, Wimmer M, Jeschke S. 2014. Partial shape matching using transformation parameter similarity. Computer Graphics Forum. 34(1), 239–252. mla: Guerrero, Paul, et al. “Partial Shape Matching Using Transformation Parameter Similarity.” Computer Graphics Forum, vol. 34, no. 1, Wiley, 2014, pp. 239–52, doi:10.1111/cgf.12509. short: P. Guerrero, T. Auzinger, M. Wimmer, S. Jeschke, Computer Graphics Forum 34 (2014) 239–252. date_created: 2018-12-11T11:54:22Z date_published: 2014-11-05T00:00:00Z date_updated: 2021-01-12T06:53:38Z day: '05' ddc: - '000' department: - _id: ChWo doi: 10.1111/cgf.12509 file: - access_level: open_access checksum: 91946bfc509c77f5fd3151a3ff2b2c8f content_type: application/pdf creator: system date_created: 2018-12-12T10:15:58Z date_updated: 2020-07-14T12:45:19Z file_id: '5182' file_name: IST-2016-574-v1+1_Guerrero-2014-TPS-paper.pdf file_size: 24817484 relation: main_file file_date_updated: 2020-07-14T12:45:19Z has_accepted_license: '1' intvolume: ' 34' issue: '1' language: - iso: eng month: '11' oa: 1 oa_version: Submitted Version page: 239 - 252 publication: Computer Graphics Forum publication_status: published publisher: Wiley publist_id: '5246' pubrep_id: '574' quality_controlled: '1' scopus_import: 1 status: public title: Partial shape matching using transformation parameter similarity type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 34 year: '2014' ... --- _id: '1906' abstract: - lang: eng text: In this paper, we introduce a novel scene representation for the visualization of large-scale point clouds accompanied by a set of high-resolution photographs. Many real-world applications deal with very densely sampled point-cloud data, which are augmented with photographs that often reveal lighting variations and inaccuracies in registration. Consequently, the high-quality representation of the captured data, i.e., both point clouds and photographs together, is a challenging and time-consuming task. We propose a two-phase approach, in which the first (preprocessing) phase generates multiple overlapping surface patches and handles the problem of seamless texture generation locally for each patch. The second phase stitches these patches at render-time to produce a high-quality visualization of the data. As a result of the proposed localization of the global texturing problem, our algorithm is more than an order of magnitude faster than equivalent mesh-based texturing techniques. Furthermore, since our preprocessing phase requires only a minor fraction of the whole data set at once, we provide maximum flexibility when dealing with growing data sets. acknowledgement: This research was supported by the Austrian Research Promotion Agency (FFG) project REPLICATE (no. 835948), the EU FP7 project HARVEST4D (no. 323567). author: - first_name: Murat full_name: Arikan, Murat last_name: Arikan - first_name: Reinhold full_name: Preiner, Reinhold last_name: Preiner - first_name: Claus full_name: Scheiblauer, Claus last_name: Scheiblauer - first_name: Stefan full_name: Jeschke, Stefan id: 44D6411A-F248-11E8-B48F-1D18A9856A87 last_name: Jeschke - first_name: Michael full_name: Wimmer, Michael last_name: Wimmer citation: ama: Arikan M, Preiner R, Scheiblauer C, Jeschke S, Wimmer M. Large-scale point-cloud visualization through localized textured surface reconstruction. IEEE Transactions on Visualization and Computer Graphics. 2014;20(9):1280-1292. doi:10.1109/TVCG.2014.2312011 apa: Arikan, M., Preiner, R., Scheiblauer, C., Jeschke, S., & Wimmer, M. (2014). Large-scale point-cloud visualization through localized textured surface reconstruction. IEEE Transactions on Visualization and Computer Graphics. IEEE. https://doi.org/10.1109/TVCG.2014.2312011 chicago: Arikan, Murat, Reinhold Preiner, Claus Scheiblauer, Stefan Jeschke, and Michael Wimmer. “Large-Scale Point-Cloud Visualization through Localized Textured Surface Reconstruction.” IEEE Transactions on Visualization and Computer Graphics. IEEE, 2014. https://doi.org/10.1109/TVCG.2014.2312011. ieee: M. Arikan, R. Preiner, C. Scheiblauer, S. Jeschke, and M. Wimmer, “Large-scale point-cloud visualization through localized textured surface reconstruction,” IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 9. IEEE, pp. 1280–1292, 2014. ista: Arikan M, Preiner R, Scheiblauer C, Jeschke S, Wimmer M. 2014. Large-scale point-cloud visualization through localized textured surface reconstruction. IEEE Transactions on Visualization and Computer Graphics. 20(9), 1280–1292. mla: Arikan, Murat, et al. “Large-Scale Point-Cloud Visualization through Localized Textured Surface Reconstruction.” IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 9, IEEE, 2014, pp. 1280–92, doi:10.1109/TVCG.2014.2312011. short: M. Arikan, R. Preiner, C. Scheiblauer, S. Jeschke, M. Wimmer, IEEE Transactions on Visualization and Computer Graphics 20 (2014) 1280–1292. date_created: 2018-12-11T11:54:39Z date_published: 2014-09-09T00:00:00Z date_updated: 2021-01-12T06:53:59Z day: '09' ddc: - '000' department: - _id: ChWo doi: 10.1109/TVCG.2014.2312011 file: - access_level: open_access checksum: 5bf58942d2eb20adf03c7f9ea2e68124 content_type: application/pdf creator: system date_created: 2018-12-12T10:17:41Z date_updated: 2020-07-14T12:45:20Z file_id: '5297' file_name: IST-2016-573-v1+1_arikan-2014-pcvis-draft.pdf file_size: 13594598 relation: main_file file_date_updated: 2020-07-14T12:45:20Z has_accepted_license: '1' intvolume: ' 20' issue: '9' language: - iso: eng month: '09' oa: 1 oa_version: Submitted Version page: 1280 - 1292 project: - _id: 25357BD2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 24352-N23 name: 'Deep Pictures: Creating Visual and Haptic Vector Images' publication: IEEE Transactions on Visualization and Computer Graphics publication_status: published publisher: IEEE publist_id: '5189' pubrep_id: '573' scopus_import: 1 status: public title: Large-scale point-cloud visualization through localized textured surface reconstruction type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 20 year: '2014' ...