Visual Computing for Archaeological Artifacts with Integral Invariant Filters in 3D (Unknown language)

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3D-artifacts from ancient civilizations contain many different kinds of information in form of forensic trace evidence, e.g., tool marks from styli or fingerprints on wax sealings. These very fine structures are increasingly captured by various 3D-acquisiton techniques and stored as irregular meshes. We introduce filter algorithms for the processing of these datasets to finally extract meaningful information at predefined scales. Therefore, Multiscale-Integral Invariants (MSII) are introduced as robust filter methods with their four different variants, using volume, patch, surface and line integrals for their specific sensitivity on mean curvature, Gaussian curvature or noise detection. Smoothing as known from 2D-raster image processing cannot be applied directly. It needs adaptation to the irregular structure of the triangular grids describing 2D-manifolds in 3D-space.We introduce a fast 1-ring smoothing with a skillful weighting by distance and area of the neighboring points and triangles. Finally, we apply our technique to the various motivating examples for showing the results as false color images with isolines, indicating the respective field of function values, e.g., curvature in various norms or correlations in the feature space. Smooth isolines are indicators for the successful removal of noise. We finally compare the fully automated results with a manual graphic rendering of a faded handwriting found in the tomb of the empress Gisela of Swabia.

Table of contents conference proceedings

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1
Animating With a Self-organizing Population the Reconstruction of Medieval Mértola
Antunes, Rui F. / Cláudio, Ana Paula / Carmo, Maria Beatriz / Correia, Luis | 2017
11
Digitising Ivory Artefacts at the National History Museum in Brazil
Marroquim, Ricardo / Sá, Asla Medeiros e / Echavarria, Karina Rodriguez / Balbio, Vitor / Zamorano, Rafael | 2017
19
Multispectral RTI Analysis of Heterogeneous Artworks
Giachetti, Andrea / Ciortan, Irina Mihaela / Daffara, Claudia / Pintus, Ruggero / Gobbetti, Enrico | 2017
29
Accurate Soil and Mudbrick BRDF Models for Archaeological Illumination Rendering with Application to Small Finds
Badler, Virginia / Jr., Joseph Kider / Moore, Megan / Walter, B. / Badler, Norman | 2017
37
Visual Computing for Archaeological Artifacts with Integral Invariant Filters in 3D
Mara, Hubert / Krömker, Susanne | 2017
49
Towards Semi-Automatic Scaling Detection on Flat Stones
Muñoz-Pandiella, Imanol / Akoglu, Kiraz / Bosch, Carles / Rushmeier, Holly | 2017
59
OpenREC: A Framework for 3D Reconstruction of Models from Photographs
Arroyo, Germán / Martín, Domingo | 2017
65
From Paper to Web: Automatic Generation of a Web-Accessible 3D Repository of Pottery Types
Dellepiane, Matteo / Callieri, Marco / Banterle, Francesco / Arenga, Domenico / Zallocco, Massimo / Scopigno, Roberto | 2017
71
Visualization of ERT Data for Archaeological Purposes
Bernardes, Paulo / Alves, Mafalda / Pereira, Bruno / Madeira, Joaquim / Martins, Manuela / Fontes, Luis | 2017
77
3D Annotation Transfer
Scalas, Andreas / Mortara, Michela / Spagnuolo, Michela | 2017
83
An Introductory Video Generator for Disseminating Cultural Heritage Projects
Wang, Zeyu / Akoglu, Kiraz / Rushmeier, Holly | 2017
93
Multisensory Virtual Experience of Tanning in Medieval Coventry
Dong, Yuanfa / Webb, Mark / Harvey, Carlo / Debattista, Kurt / Chalmers, Alan | 2017
99
An Application to Compare the Past and Present of Townscapes
Endo, Mari / Motoyama, Kiyofumi / Endo, Mamoru / Yasuda, Takami | 2017
103
Little Manila: A Digital Recreation
Salyers, Joshua / Cliburn, Daniel / Sparks, Edith / Culilap, Jamie Lynn / Kuo, Sarah / Sabbatino, Kyle / Sanchez, Ronnie / Thomasson, Danielle / Tvergyak, Hannah | 2017
109
Hybrid Virtual Reality Touch Table - An Immersive Collaborative Platform for Public Explanatory Use of Cultural Objects and Sites
Sundén, Erik / Lundgren, Ingemar / Ynnerman, Anders | 2017
115
Histogram of Oriented Gradients for Maya Glyph Retrieval
Feldmann, Felix / Bogacz, Bartosz / Prager, Christian / Mara, Hubert | 2017
119
Cross-modal Content-based Retrieval for Digitized 2D and 3D Cultural Heritage Artifacts
Gregor, Robert / Mayrbrugger, Christof / Mavridis, Pavlos / Bustos, Benjamin / Schreck, Tobias | 2017
125
Pairwise Matching of Stone Tools Based on Flake-Surface Contour Points and Normals
Xi, Yang / Matsuyama, Katsutsugu / Konno, Kouichi | 2017
131
Automatic Transfer of Landmarks on Human Skulls using GPU-based Non-rigid Registration
Innmann, Matthias / Erhardt, Philipp / Schütz, Daniel / Greiner, Günther | 2017
137
Exploiting Unbroken Surface Congruity for the Acceleration of Fragment Reassembly
Savelonas, Michalis A. / Andreadis, Anthousis / Papaioannou, Georgios / Mavridis, Pavlos | 2017
145
An Inclusive Approach to Digital Heritage: Preliminary Achievements Within the INCEPTION Project
Maietti, Federica / Medici, Marco / Piaia, Emanuele | 2017
151
A Dashboard for the Analysis of Tangible Heritage Artefacts: a Case Study in Archaeology
Catalano, Chiara Eva / Repetto, Andrea / Spagnuolo, Michela | 2017
161
The ArchAIDE Project: Results and Perspectives After the First Year
Banterle, Francesco / Dellepiane, Matteo / Evans, Tim / Gattiglia, Gabriele / Itkin, Barak / Zallocco, Massimo | 2017
165
Streamlining the Preparation of Scanned 3D Artifacts to Support Digital Analysis and Processing: the GRAVITATE Case Study
Mortara, Michela / Pizzi, Corrado / Spagnuolo, Michela | 2017
171
Projecting our Past to the Future - Challenges and Results: The Case of Asinou church
Papaefthymiou, M. / Nikolakopoulou, V. / Leventis, Georgios / Domajnko, M. / Ioannides, M. / Papagiannakis, G. / Santos, P. | 2017
177
Kyrenia - Hyper Storytelling Pilot Application
Rizvic, Selma / Boskovic, Dusanka / Okanovic, Vensada / Sljivo, Sanda | 2017
183
Reproduction of Gloss, Color and Relief of Paintings using 3D Scanning and 3D Printing
Elkhuizen, Willemijn S. / Essers, Tessa T. W. / Lenseigne, Boris / Weijkamp, Clemens / Song, Yu / Pont, Sylvia C. / Geraedts, Jo M.- P. / Dik, Joris | 2017
189
Educational Virtual Reality Visualisations of Heritage Sites
John, David / Shaw, Lawrence / Cheetham, Paul / Manley, Harry / Stone, Aaron A. / Blakeburn, Michaela / Gosling, Karl | 2017
195
CHER-ish: A Sketch- and Image-based System for 3D Representation and Documentation of Cultural Heritage Sites
Rudakova, Victoria / Lin, Nathan / Trayan, Natallia / Sezgin, Tevfik Metin / Dorsey, Julie / Rushmeier, Holly | 2017
201
The Fabricated Diorama: Tactile Relief and Context-aware Technology for Visually Impaired Audiences
Samaroudi, Myrsini / Echavarria, Karina Rodriguez / Song, Ran / Evans, Roger | 2017