Back to Search
Start Over
COMPUTER GRAPHICS MEETS IMAGE FUSION: THE POWER OF TEXTURE BAKING TO SIMULTANEOUSLY VISUALISE 3D SURFACE FEATURES AND COLOUR
- Source :
- ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol IV-2-W2, Pp 295-302 (2017)
- Publication Year :
- 2017
- Publisher :
- Copernicus Publications, 2017.
-
Abstract
- Since a few years, structure-from-motion and multi-view stereo pipelines have become omnipresent in the cultural heritage domain. The fact that such Image-Based Modelling (IBM) approaches are capable of providing a photo-realistic texture along the threedimensional (3D) digital surface geometry is often considered a unique selling point, certainly for those cases that aim for a visually pleasing result. However, this texture can very often also obscure the underlying geometrical details of the surface, making it very hard to assess the morphological features of the digitised artefact or scene. Instead of constantly switching between the textured and untextured version of the 3D surface model, this paper presents a new method to generate a morphology-enhanced colour texture for the 3D polymesh. The presented approach tries to overcome this switching between objects visualisations by fusing the original colour texture data with a specific depiction of the surface normals. Whether applied to the original 3D surface model or a lowresolution derivative, this newly generated texture does not solely convey the colours in a proper way but also enhances the smalland large-scale spatial and morphological features that are hard or impossible to perceive in the original textured model. In addition, the technique is very useful for low-end 3D viewers, since no additional memory and computing capacity are needed to convey relief details properly. Apart from simple visualisation purposes, the textured 3D models are now also better suited for on-surface interpretative mapping and the generation of line drawings.
- Subjects :
- lcsh:Applied optics. Photonics
Computer science
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
02 engineering and technology
Texture (geology)
lcsh:Technology
Computer graphics
Image texture
Texture filtering
020204 information systems
Computer graphics (images)
0202 electrical engineering, electronic engineering, information engineering
0601 history and archaeology
Computer vision
ComputingMethodologies_COMPUTERGRAPHICS
Image fusion
Projective texture mapping
060102 archaeology
business.industry
lcsh:T
lcsh:TA1501-1820
06 humanities and the arts
Visualization
lcsh:TA1-2040
Normal mapping
Artificial intelligence
business
lcsh:Engineering (General). Civil engineering (General)
Subjects
Details
- Language :
- English
- ISSN :
- 21949050 and 21949042
- Database :
- OpenAIRE
- Journal :
- ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
- Accession number :
- edsair.doi.dedup.....64a014850660d558c365776b9dc8378c