1,184 Hits in 5.4 sec

Multi-GPU Image-based Visual Hull Rendering [article]

Stefan Hauswiesner, Rostislav Khlebnikov, Markus Steinberger, Matthias Straka, Gerhard Reitmayr
2012 Eurographics Symposium on Parallel Graphics and Visualization  
Image-based visual hull (IBVH) rendering is capable of rendering arbitrary views from segmented images without an explicit intermediate data representation, such as a mesh or a voxel grid.  ...  We suggest a combination of forward and backward image warping to improve the visual quality of the MFR rendering.  ...  Parallelizing the image-based visual hull algorithm We suggest several multi-GPU configurations of our pipeline.  ... 
doi:10.2312/egpgv/egpgv12/119-128 fatcat:tyr7zagyhjg2vdsewdofydkrea

A Real-Time View-Dependent Shape Optimization for High Quality Free-Viewpoint Rendering of 3D Video

Shohei Nobuhara, Wei Ning, Takashi Matsuyama
2014 2014 2nd International Conference on 3D Vision  
The main challenge on visualizing 3D video is how to utilize the original multi-view images used to estimate the 3D surface, and how to manage the mismatches between them due to calibration and reconstruction  ...  This paper is aimed at proposing a new high quality freeviewpoint rendering algorithm of 3D video.  ...  In this sense, our method can be regarded as an image-based rendering using sparse multi-view cameras.  ... 
doi:10.1109/3dv.2014.28 dblp:conf/3dim/NobuharaNM14 fatcat:fdzmnzp7gbb5nnuiezrd5n3lsu

Real-time high-resolution sparse voxelization with application to image-based modeling

Charles Loop, Cha Zhang, Zhengyou Zhang
2013 Proceedings of the 5th High-Performance Graphics Conference on - HPG '13  
We apply this technique to the problem of smooth visual hull reconstruction of human subjects based on a set of live image streams.  ...  Computation plus rendering took 24 milliseconds. Abstract We present a system for real-time, high-resolution, sparse voxelization of an image-based surface model.  ...  Acknowledgements We thank the volunteer test subjects who allowed us to use their images as examples in this paper and video.  ... 
doi:10.1145/2492045.2492053 dblp:conf/egh/LoopZZ13 fatcat:rjqwjhuzcngepcitymfdldrnua

Multi-view 4D Reconstruction of Human Action for Entertainment Applications [chapter]

Oliver Grau
2011 Visual Analysis of Humans  
The visual hull concept for silhouette-based image understanding. IEEE PAMI, pages 150-162, 1994. • Wojciech Matusik, et al.. Image-based visual hulls. Siggraph 2000. • J. Starck and A. Hilton.  ...  Hilton, "A Free- Viewpoint Video Renderer", Journal of graphics, gpu, and game tools, vol. 14, no.3, 2009.  ... 
doi:10.1007/978-0-85729-997-0_29 fatcat:jgftcdfjpnbpfdpnploijfd4ga

Interactive Geometry-Aware Segmentation for the Decomposition of Kaleidoscopic Images [article]

Oliver Klehm, Ilya Reshetouski, Elmar Eisemann, Hans-Peter Seidel, Ivo Ihrke
2012 International Symposium on Vision, Modeling, and Visualization  
Mirror systems have recently emerged as an alternative low-cost multi-view imaging solution.  ...  To achieve interactivity, we employ the GPU in all stages of the application, such as 2D/3D rendering as well as segmentation.  ...  Acknowledgements This work was supported by the German Research Foundation (DFG) through the Emmy-Noether fellowship IH 114/1-1 and by the Intel Visual Computing Institute (IVCI) at Saarland University  ... 
doi:10.2312/pe/vmv/vmv12/009-014 dblp:conf/vmv/KlehmRESI12 fatcat:lhxr2qq4tvf5hljprd5cybsehi

Accelerated Real-Time Reconstruction of 3D Deformable Objects from Multi-view Video Channels [chapter]

Holger Graf, Leon Hazke, Svenja Kahn, Cornelius Malerczyk
2011 Lecture Notes in Computer Science  
It is based on a new memory management and an enhanced algorithm pipeline of the well known Image-Based Visual Hull (IBVH) algorithm that enables efficient and fast reconstruction results and opens up  ...  As a result, a significant increase of frame rates for the volumetric reconstruction of deformable objects can be achieved using an optimized CUDA-based implementation on NVIDIA's Fermi-GPUs.  ...  In this paper we also propose a GPU accelerated image based visual hull reconstruction algorithm.  ... 
doi:10.1007/978-3-642-21799-9_32 fatcat:b6zistrwk5banal2fdlsnj4vma

Real-Time 3D Feature Extraction Without Explicit 3D Object Reconstruction

Kwangjin Hong, Chulhan Lee, Keechul Jung, Kyoungsu Oh
2008 Zenodo  
This method uses the modified GPU-based visual hull generation algorithm which disables unnecessary processes, such as the texture calculation to generate three kinds of 3D projection maps as the 3D feature  ...  Therefore, a lot of studies have proposed efficient methods about the recognition algorithm using 2D camera captured images.  ...  In our method, we use the silhouette-based visual hull rendering algorithm.  ... 
doi:10.5281/zenodo.1331633 fatcat:tdz4hqnspredzb6yyilnbifmlu

Hardware-based camera calibration and 3D modelling under circular motion

Bo Shu, Xianjie Qiu, Zhaoqi Wang
2008 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops  
and realistic visual hull efficiently and robustly.  ...  By minimizing the difference between the projections of reconstructed visual hull and the silhouette images using graphics hardware, the optimization can finally converge to accurate camera parameters  ...  Since rendering voxels is time consuming, we render the reconstructed visual hull voxels as splats (circular discs in object space) in frame buffer using point based rendering.  ... 
doi:10.1109/cvprw.2008.4563093 dblp:conf/cvpr/ShuQW08 fatcat:35mjoemg2vdm3gznmt32xwgpbm

The BundleExplorer: A Focus and Context Rendering Framework for Complex Fiber Distributions [article]

Diana Röttger, Dorit Merhof, Stefan Müller
2012 Eurographics Workshop on Visual Computing for Biomedicine  
This paper presents the BundleExplorer as a GPU-based focus and context rendering framework for diffusion data.  ...  renderings.  ...  A GPU-based framework for cutaway rendering is proposed to facilitate a fast focus and context rendering of white matter pathways and their encompassing hulls.  ... 
doi:10.2312/vcbm/vcbm12/001-008 fatcat:bqhw5vjh2vczbcebr2qdbp5xoi

Parallel high resolution real-time Visual Hull on GPU

Wolfgang Waizenegger, Ingo Feldmann, Peter Eisert, Peter Kauff
2009 2009 16th IEEE International Conference on Image Processing (ICIP)  
In this paper we present an efficient high resolution Image Based Visual Hull (IBVH) algorithm that entirely runs in real-time on a single consumer graphics card.  ...  We compare our techniques in terms of resolution and runtime with state of the art real-time multi GPU voxel based approaches.  ...  IMAGE BASED VISUAL HULLS Image based Visual Hulls (IBVH) were initially proposed by Matusik et al. [11] .  ... 
doi:10.1109/icip.2009.5413661 dblp:conf/icip/WaizeneggerFEK09 fatcat:wdl5emyw45clpl36toqiosh2r4

Seismic structure extraction based on multi-scale sensitivity analysis

Richen Liu, Hanqi Guo, Xiaoru Yuan
2014 Journal of Visualization  
In this paper, we present an interactive approach to visualize the structural geological composition with the assistance of multi-scale sensitivity of transfer function.  ...  The final transfer function is shared to 3D volume texture on GPU, and then volume cut methods based on algebraic set operators are utilized to extract the corresponding geological composition in the volume  ...  We implement an automatic GPU-based volume cut, the convex-hull cut, which at most result in only eight cutting planes.  ... 
doi:10.1007/s12650-014-0207-4 fatcat:inpg22yfufax5dr4p7jtrv4hoy

A Free-Viewpoint Virtual Mirror with Marker-Less User Interaction [chapter]

Matthias Straka, Stefan Hauswiesner, Matthias Rüther, Horst Bischof
2011 Lecture Notes in Computer Science  
This is achieved through a multiple camera system and visual hull based rendering.  ...  A real-time 3D reconstruction and rendering pipeline enables us to create a virtual mirror image at 15 frames per second on a single computer.  ...  Image-Based Visual Hull Rendering For mirror image rendering, our system uses an efficient implementation of the image-based visual hull (IBVH) algorithm by Matusik et al.  ... 
doi:10.1007/978-3-642-21227-7_59 fatcat:z6fpbf6tenhchc3dwoiy4vnrue

Ray Traced Volume Clipping Using Multi-Hit BVH Traversal

Stefan Zellmann, Mauritius Hoevels, Ulrich Lang
2017 IS&T International Symposium on Electronic Imaging Science and Technology  
Our algorithm is based on the multi-hit query for traversing bounding volume hierarchies with rays. We provide efficient CPU and GPU implementations and present performance results.  ...  Rendering systems often only support volume clipping with geometry types that can be described in a parametric form, or they employ costly multi-pass GPU approaches.  ...  The image shows direct volume rendering of a CT dataset and the volume of interest defined by the delineated tumor's hull.  ... 
doi:10.2352/issn.2470-1173.2017.1.vda-392 fatcat:unwbnlxnfvaghc34dbgifs7umm

A multi-GPU accelerated virtual-reality interaction simulation framework

Xuqiang Shao, Weifeng Xu, Lina Lin, Fengquan Zhang, Huijia Li
2019 PLoS ONE  
Firstly, based on an extended voxel-based visual hull (VbVH) algorithm, we design an image-based 3D reconstruction platform for real objects.  ...  In this paper, we put forward a real-time multiple GPUs (multi-GPU) accelerated virtual-reality interaction simulation framework where the reconstructed objects from camera images interact with virtual  ...  Visual hulls are divided into two categories: surface-based visual hull (SbVH) [8] and voxelbased visual hull (VbVH) [9] .  ... 
doi:10.1371/journal.pone.0214852 pmid:30973907 pmcid:PMC6459549 fatcat:ye5whu2bprcihlcwgznmocchti

Real-time free viewpoint video from uncalibrated cameras using plane-sweep algorithm

Songkran Jarusirisawad, Hideo Saito, Vicent Nozick
2009 2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops  
In this paper, we present a new online video-based rendering (VBR) method that creates new views of a scene from uncalibrated cameras.  ...  To achieve real-time performance, we implemented the proposed algorithm in graphics processing unit (GPU).  ...  There are some online implementations of the visual hulls algorithm [9, 10, 21, 12] . Among all these visual hulls methods, the image-based visual hulls presented by Matusik et al.  ... 
doi:10.1109/iccvw.2009.5457493 dblp:conf/iccvw/JarusirisawadSN09 fatcat:h4n5ue36j5fn5f2pytvosif7wm
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