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Rendering Procedural Terrain by Geometry Image Warping [article]

Carsten Dachsbacher, Marc Stamminger
2004 Symposium on Rendering  
of geometry images.  ...  During rendering, procedural geometric and texture detail is added by the graphics hardware.  ...  We exploit this property to achieve a very efficient terrain LOD by warping the geometry image of the terrain such that mesh resolution is increased where needed and removed where it does not contribute  ... 
doi:10.2312/egwr/egsr04/103-110 fatcat:ywkwp4auujgrfitzbxbunrrbvm

Point-based Computer graphics

Matthias Zwicker, Mark Pauly
2004 Computers & graphics  
• points are well suited for • procedural geometryterrains • complex geometry • combinations Point-Based Computer Graphics Marc Stamminger 12 results • points are well suited for • procedural  ...  8 results • points are well suited for • procedural geometry Point-Based Computer Graphics Marc Stamminger 9 results • points are well suited for • procedural geometryterrains Point-Based  ... 
doi:10.1016/j.cag.2004.08.008 fatcat:amdvmlgndreupab2556sxdvzbe

Accelerating Voxel-Based Terrain Rendering with Keyframe-Free Image-Based Rendering [chapter]

Jiafa Qin, Ming Wan, Huamin Qu, Arie Kaufman
2001 Eurographics  
The current viewing image is generated by warping the previous image with a revised 3D warping algorithm and filling holes with the raycasting approach, accelerated by ray coherence and multiresolution  ...  We propose a voxel-based terrain rendering method which incorporates a novel keyframe-free image-based rendering algorithm and a new heuristic ray coherence raycasting algorithm.  ...  Acknowledgments The author Jiafa Qin was supported by a scholarship from the China Scholarship Council during this work. This work has also been partially supported by ONR grant N000149710402.  ... 
doi:10.1007/978-3-7091-6756-4_20 fatcat:y7zr2eck2jfftmoeckvahmt2fm

Interactive stereoscopic rendering of volumetric environments

Ming Wan, Nan Zhang, Huamin Qu, A.E. Kaufman
2004 IEEE Transactions on Visualization and Computer Graphics  
In this algorithm, most of the pixel values of the right image are derived from the left image by a fast 3D warping based on a specific stereoscopic projection geometry.  ...  An accelerated volumetric ray casting then fills the remaining gaps in the warped right image.  ...  The patients' data sets were provided by the University Hospital of the State University of New York at Stony Brook.  ... 
doi:10.1109/tvcg.2004.1260755 pmid:15382695 fatcat:rdpeiggbcnb6vcxq52xhei5rje

Image based rendering with stable frame rates

Huamin Qu, Ming Wan, Jiafa Qin, A. Kaufman
2000 Proceedings Visualization 2000. VIS 2000 (Cat. No.00CH37145)  
The pixels in the intermediate image are first rendered by a ray-casting method and then warped to the intermediate image at the current viewpoint and view direction.  ...  In this way, we guarantee more stable frame rates and more uniform image qualities. The intermediate image can be warped efficiently by a modified incremental 3D warp algorithm.  ...  Acknowledgments This work is partially supported by ONR grant N000149710402. Thanks to Nan Zhang, Baoquan Chen, and other members of the virtual fly-through project.  ... 
doi:10.1109/visual.2000.885702 dblp:conf/visualization/QuWQK00 fatcat:hkdu7x6ccvh2lavxgt4desjlfa

Terrain Modelling from Feature Primitives

Jean-David Génevaux, Eric Galin, Adrien Peytavie, Eric Guérin, Cyril Briquet, François Grosbellet, Bedrich Benes
2015 Computer graphics forum (Print)  
Inner nodes combine the leaves and subtrees by carving, blending or warping operators.  ...  We introduce a compact hierarchical procedural model that combines feature-based primitives to describe complex terrains with varying level of detail.  ...  Image primitives Image-based primitives define specific and complex terrain features, such as detailed rivers or sand ripples, which would be difficult to create by using procedural skeletal primitives  ... 
doi:10.1111/cgf.12530 fatcat:orqytqsqtrbiznxzuz5izrzayy

Prevention of Mountain Disasters and Maintenance of Residential Area through Real-Time Terrain Rendering

Su-Kyung Sung, Eun-Seok Lee, Byeong-Seok Shin
2021 Sustainability  
The proposed method utilizes a hierarchical vertex cohesion map to correct inaccurately modeled terrain caused by uniform height sampling, and to compensate for geometric errors using Hausdorff distances  ...  These functions can improve the sustainability of residential spaces by predicting the damage caused by mountainous disasters or civil engineering works around the city and make it easy for non-experts  ...  Since the introduction of programmable GPU pipelines, GPU-based rendering techniques such as geometry image warping [34] have been introduced.  ... 
doi:10.3390/su13052950 fatcat:y63ur7erzbafhmvyoenyrz6rgy

Procedure models for generating three-dimensional terrain

Robert Marshall, Rodger Wilson, Wayne Carlson
1980 Proceedings of the 7th annual conference on Computer graphics and interactive techniques - SIGGRAPH '80  
Terrain images rendered by this process are included, as are diagrams and illustrations explaining the procedure model organization. Comparisons with previous work are made.  ...  Procedure models are used to combine fundamental data elements in the creation of unified objects comprising the terrain model.  ...  In many cases a three-dimensional image is required (single trees or a small group of trees) to render a terrain image so that it is possible to not only fly over the terrain, but also to move through  ... 
doi:10.1145/800250.807485 dblp:conf/siggraph/MarshallWC80 fatcat:as4rl4l47zd6jmilk4oy6lchne

Surface splatting

Matthias Zwicker, Hanspeter Pfister, Jeroen van Baar, Markus Gross
2001 Proceedings of the 28th annual conference on Computer graphics and interactive techniques - SIGGRAPH '01  
Moreover, we show how to optimally sample image and procedural textures to irregular point data during pre-processing.  ...  Figure 1 : Surface splatting of a scan of a human face, textured terrain, and a complex point-sampled object with semi-transparent surfaces.  ...  The textured terrain data set in Figure 1 is courtesy of Bundesamt für Landestopographie, Bern, Switzerland.  ... 
doi:10.1145/383259.383300 dblp:conf/siggraph/ZwickerPBG01 fatcat:gypaoy4z6vfubemmvoxguwld2m

Occlusion Culling for Image-Based Rendering withWarping [article]

I. Sen Soner, Volkan Atalay
2003 Eurographics State of the Art Reports  
The basic idea of the proposed algorithm is to reduce the number of depth pixels in Layer Depth Images (LDI) by culling the occluded ones before warping.  ...  The method combines the octree spatial subdivision concept with LDI concept, using the implicit geometry stored in depth pixels.  ...  The generation of the intermediate image is by factoring the 3D warp into a pre-warp.  ... 
doi:10.2312/egs.20031044 fatcat:32lqyrjvoffbhkb7m4kus77524

Parallel-split shadow maps for large-scale virtual environments

Fan Zhang, Hanqiu Sun, Leilei Xu, Lee Kit Lun
2006 Proceedings of the 2006 ACM international conference on Virtual reality continuum and its applications - VRCIA '06  
By applying the geometry approximation procedure to each of the split parts instead of the whole scene, the tighter bounding shapes of visible objects enhance the utilization of the shadow map resolution  ...  Shadow mapping is an efficient algorithm for real-time shadow rendering, which is extensively adopted in real-time applications by its generality and efficiency.  ...  This procedure is accelerated by hardware.  ... 
doi:10.1145/1128923.1128975 dblp:conf/vrcai/ZhangSXL06 fatcat:ty5skxpp5za6nciujggelspg7a

Database verification using an imaging sensor

Philippe Simard, Frank P. Ferrie, Jacques G. Verly
2002 Enhanced and Synthetic Vision 2002  
Synthetic images of local terrain are rendered from a database and registered through the aircraft navigation system.  ...  If the measured change is different from the predicted change, the database geometry is assumed to be incorrect.  ...  Using the motion field, the predicted image is constructed by warping the sensor image gathered before the motion.  ... 
doi:10.1117/12.474431 fatcat:gl5d7abxkne57nxk7lgykahxpq

Real-Time Painterly Rendering of Terrains

Shiben Bhattacharjee, P.J. Narayanan
2008 2008 Sixth Indian Conference on Computer Vision, Graphics & Image Processing  
The painterly appearance and the impression of terrains is created by effectively rendering several brush strokes.  ...  By exploiting the regular nature of terrain data, we create pre-decided rendering depth orders for primitives for any camera orientation.  ...  The accurate rendering done by computers fails to provide images with a such a feeling. Animations are therefore often created by artists by painting a number of frames and is a tedious job.  ... 
doi:10.1109/icvgip.2008.82 dblp:conf/icvgip/BhattacharjeeN08 fatcat:7oakupmndbduxm2x45v7t7jvre

Automatic image placement to provide a guaranteed frame rate

Daniel G. Aliaga, Anselmo Lastra
1999 Proceedings of the 26th annual conference on Computer graphics and interactive techniques - SIGGRAPH '99  
Our approach trades off space for frame rate by using images to replace distant geometry.  ...  We also summarize an optimized layered-depth-image warper to display images surrounded by geometry at run time.  ...  The pipes model was created from code written by Lee Westover.  ... 
doi:10.1145/311535.311574 dblp:conf/siggraph/AliagaL99 fatcat:cdu5peyylnfwxos64xwt7h7d4a

A Framework for Representation and Processing of Multi-view Video Using the Concept of Layered Depth Image

Seung-Uk Yoon, Eun-Kyung Lee, Sung-Yeol Kim, Yo-Sung Ho
2007 Journal of VLSI Signal Processing Systems for Signal, Image and Video Technology  
In this paper, we propose a new framework using the concept of layered depth image (LDI), one of the efficient image-based rendering techniques, to efficiently represent and process multi-view video data  ...  Keywords: layered depth image (LDI), multi-view video coding, representation of multi-view video  ...  Acknowledgement This research was supported by MIC under the ITRC support program supervised by IITA through Realistic Broadcasting Research Center (RBRC) at Gwangju Institute of Science and Technology  ... 
doi:10.1007/s11265-006-0023-8 fatcat:pszbilkdo5h7nggmgs7savm5ae
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