Georgios Papaioannou
Georgios Papaioannou

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gepapataueb.gr

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Bibliometrics: publication history
Average citations per article4.76
Citation Count157
Publication count33
Publication years1999-2017
Available for download11
Average downloads per article320.36
Downloads (cumulative)3,524
Downloads (12 Months)371
Downloads (6 Weeks)27
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33 results found Export Results: bibtexendnoteacmrefcsv

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1 published by ACM
March 2017 Journal on Computing and Cultural Heritage (JOCCH): Volume 10 Issue 2, April 2017
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 9,   Downloads (12 Months): 121,   Downloads (Overall): 121

Full text available: PDFPDF
The problem of the restoration of broken artifacts, where large parts could be missing, is of high importance in archaeology. The typical manual restoration can become a tedious and error-prone process, which also does not scale well. In recent years, many methods have been proposed for assisting the process, most ...
Keywords: symmetry detection, Reassembly, object completion, shape classification, registration, segmentation

2
June 2016 HPG '16: Proceedings of High Performance Graphics
Publisher: Eurographics Association
Bibliometrics:
Citation Count: 0

We introduce a novel approach to image-space ray tracing ideally suited for the photorealistic synthesis of fully dynamic environments at interactive frame rates. Our method, designed entirely on the rasterization pipeline, alters the acceleration data structure construction from a per-fragment to a per-primitive basis in order to simultaneously support three ...

3
June 2016 The Visual Computer: International Journal of Computer Graphics: Volume 32 Issue 6-8, June 2016
Publisher: Springer-Verlag New York, Inc.
Bibliometrics:
Citation Count: 0

Lighting design is an essential process in computer cinematography, games, architectural design and various other applications for correctly illuminating or highlighting parts of a scene and enhancing storytelling. When targeting specific illumination goals and constraints, this process can be tedious and counter-intuitive even for experienced users and thus automatic, goal-driven ...
Keywords: Light hierarchy, Inverse lighting problem, Lighting optimization

4
May 2016 EG '16: Proceedings of the 37th Annual Conference of the European Association for Computer Graphics: Short Papers
Publisher: Eurographics Association
Bibliometrics:
Citation Count: 0

Today architectural design harnesses photorealistic rendering to accurately assess energy transport for the design of energy-efficient buildings. In this context, we present an automatic physically-based solution to the opening design problem, i.e. the goal-driven process of defining openings on the input geometry given a set of lighting constraints, to better ...

5 published by ACM
February 2016 I3D '16: Proceedings of the 20th ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 7,   Downloads (12 Months): 76,   Downloads (Overall): 198

Full text available: PDFPDF
We introduce a generic method for interactive ray tracing, able to support complex and dynamic environments, without the need for precomputations or the maintenance of additional spatial data structures. Our method, which relies entirely on the rasterization pipeline, stores fragment information for the entire scene on a multiview and multilayer ...
Keywords: GPU, cubemap, A-buffer, ray tracing, rasterization

6
October 2015 Computer Graphics Forum: Volume 34 Issue 7, October 2015
Publisher: The Eurographs Association & John Wiley & Sons, Ltd.
Bibliometrics:
Citation Count: 1

We present a new method for the completion of partial globally-symmetric 3D objects, based on the detection of partial and approximate symmetries in the incomplete input dataset. In our approach, symmetry detection is formulated as a constrained sparsity maximization problem, which is solved efficiently using a robust RANSAC-based optimizer. The ...
Keywords: I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling-Curve, surface, solid, and object representations, Categories and Subject Descriptors according to ACM CCS

7 published by ACM
July 2015 SIGGRAPH '15: ACM SIGGRAPH 2015 Posters
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 1,   Downloads (12 Months): 31,   Downloads (Overall): 129

Full text available: PDFPDF
The problem of object restoration from eroded fragments where large parts could be missing is of high relevance in archaeology. Manual restoration is possible and common in practice but it is a tedious and error-prone process, which does not scale well. Solutions for specific parts of the problem have been ...

8
May 2015 Computer Aided Geometric Design: Volume 35 Issue C, May 2015
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 3

The registration of two geometric surfaces is typically addressed using variants of the Iterative Closest Point (ICP) algorithm. The Sparse ICP method formulates the problem using sparsity-inducing norms, significantly improving the resilience of the registration process to large amounts of noise and outliers, but introduces a significant performance degradation. In ...
Keywords: 3D scan alignment, ℓp minimization, Digital geometry processing, Surface registration

9
March 2015 GRAPP 2015: Proceedings of the 10th International Conference on Computer Graphics Theory and Applications
Publisher: SCITEPRESS - Science and Technology Publications, Lda
Bibliometrics:
Citation Count: 0

In this paper we present a novel generic method for the fast and accurate computation of geometric features at multiple scales. The presented method works on arbitrarily complex models and operates in the parametric space. The majority of the existing methods compute local features directly on the geometric representation of ...
Keywords: Geometric features, Parametric space, Mesh geometry.

10
March 2015 GRAPP 2015: Proceedings of the 10th International Conference on Computer Graphics Theory and Applications
Publisher: SCITEPRESS - Science and Technology Publications, Lda
Bibliometrics:
Citation Count: 0

Lighting design is a demanding but very important task in computer cinematography, games and architectural design. Computer-assisted lighting design aims at providing the designers with tools to describe the desired outcome and derive a suitable lighting configuration to match their goal. In this paper, we present an automatic approach to ...
Keywords: Computer Graphics, Inverse Light Positioning Problem., Light Design, Optimization

11 published by ACM
February 2015 i3D '15: Proceedings of the 19th Symposium on Interactive 3D Graphics and Games
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 2,   Downloads (12 Months): 15,   Downloads (Overall): 53

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In the last decade, significant research has been conducted for addressing the problem of multi-fragment rendering from different perspectives. While the hardware-accelerated A-buffer is the dominant structure for holding multiple fragments via per-pixel linked lists, several variants have been proposed to alleviate the cost of excessive allocation and random access ...

12
October 2014 GCH '14: Proceedings of the Eurographics Workshop on Graphics and Cultural Heritage
Publisher: Eurographics Association
Bibliometrics:
Citation Count: 3

Due to recent improvements in 3D acquisition and shape processing technology, the digitization of Cultural Heritage (CH) artifacts is gaining increased application in context of archival and archaeological research. This increasing availability of acquisition technologies also implies a need for intelligent processing methods that can cope with imperfect object scans. ...

13 published by ACM
March 2013 I3D '13: Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Publisher: ACM
Bibliometrics:
Citation Count: 8
Downloads (6 Weeks): 1,   Downloads (12 Months): 25,   Downloads (Overall): 267

Full text available: PDFPDF
Screen-space ambient occlusion and obscurance (AO) techniques have become de-facto methods for ambient light attenuation and contact shadows in real-time rendering. Although extensive research has been conducted to improve the quality and performance of AO techniques, view-dependent artifacts remain a major issue. This paper introduces Multi-view Ambient Occlusion, a generic ...
Keywords: ambient occlusion, screen space, real-time rendering, ambient obscurance

14
September 2012 Computer Graphics Forum: Volume 31 Issue 7pt1, September 2012
Publisher: John Wiley & Sons, Inc.
Bibliometrics:
Citation Count: 2

In this paper we introduce a new fixed-rate texture compression scheme based on the energy compaction properties of a modified Haar transform. The coefficients of this transform are quantized and stored using standard block compression methods, such as DXTC and BC7, ensuring simple implementation and very fast decoding speeds. Furthermore, ...
Keywords: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Color, shading, shadowing, and texture

15 published by ACM
March 2012 I3D '12: Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 0,   Downloads (12 Months): 5,   Downloads (Overall): 108

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We present a new fixed-rate texture compression scheme based on the energy compaction properties of the Discrete Wavelet Transform. Targeting existing commodity graphics hardware and APIs, our method is using the DXT compression formats to perform the quantization and storage of the wavelet transform coefficients, ensuring very fast decoding speeds. ...

16 published by ACM
August 2011 HPG '11: Proceedings of the ACM SIGGRAPH Symposium on High Performance Graphics
Publisher: ACM
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 0,   Downloads (12 Months): 14,   Downloads (Overall): 473

Full text available: PDFPDF
GPU-based interactive global illumination techniques are receiving an increasing interest from both the research and the industrial community as real-time graphics applications strive for visually rich and realistic dynamic three-dimensional environments. This paper presents a fast new diffuse global illumination method that generates a sparse set of low-cost radiance field ...
Keywords: real time rendering, programmable graphics hardware, global illumination

17 published by ACM
February 2011 I3D '11: Symposium on Interactive 3D Graphics and Games
Publisher: ACM
Bibliometrics:
Citation Count: 10
Downloads (6 Weeks): 1,   Downloads (12 Months): 17,   Downloads (Overall): 354

Full text available: PDFPDF
The quality of the available hardware texture filtering, even on state of the art graphics hardware, suffers from several aliasing artifacts, in both spatial and temporal domain. Those artifacts are mostly evident in extreme conditions, such as grazing viewing angles, highly warped texture coordinates, or extreme perspective and become especially ...
Keywords: MIP mapping, elliptical weighed average filter, EWA, antialiasing, texture filtering

18
September 2010 IEEE Transactions on Visualization and Computer Graphics: Volume 16 Issue 5, September 2010
Publisher: IEEE Educational Activities Department
Bibliometrics:
Citation Count: 2

Real-time rendering can benefit from global illumination methods to make the 3D environments look more convincing and lifelike. On the other hand, the conventional global illumination algorithms for the estimation of the diffuse surface interreflection make heavy usage of intra- and interobject visibility calculations, so they are time-consuming, and using ...
Keywords: Shading, raytracing, ambient occlusion, ray marching., Shading, shadowing, raytracing, volume visualization, visibility, ambient occlusion, ray marching., shadowing, visibility, volume visualization

19
March 2009 VS-GAMES '09: Proceedings of the 2009 Conference in Games and Virtual Worlds for Serious Applications
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

Rendering realistic outdoor scenes in realtimeapplications is a difficult task to accomplishsince the geometric complexity of the objects, andmost notably of trees, is too high for currenthardware to handle efficiently in large amounts.Our method generates trees with self-similarity, andlater exploits this property by heavily sharing prerenderedtextures of similar parts of ...
Keywords: tree, modeling, foliage, rendering, image-based

20
October 2007
Bibliometrics:
Citation Count: 10

This book is a comprehensive introduction to visual computing, dealing with the acquisition, analysis, and synthesis of visual data by means of computers. What sets this book apart from other computer graphics texts is the integrated coverage of computer graphics and visualization topics, including important techniques such as subdivision surfaces, ...



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