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Name
CRS4 Open Archive
Type
Institutional Repository
Items
2 Publications
Compatibility
OpenAIRE 3.0 (OA, funding)
OAI-PMH
http://oai.crs4.it/oai/openaire
More information
Detailed data provider information (OpenDOAR)

 

  • A Practical Reflectance Transformation Imaging Pipeline for Surface Characterization in Cultural Heritage

    We present a practical acquisition and processing pipeline to characterize the surface structure of cultural heritage objects. Using a free-form Reflectance Transformation Imaging (RTI) approach, we acquire multiple digital photographs of the studied object shot from a stationary camera. In each photograph, a light is freely positioned around the object in order to cover a wide variety of illumination directions. Multiple reflective spheres and white Lambertian surfaces are added to the scene...

    Practical Free-form RTI Acquisition with Local Spot Lights

    We present an automated light calibration pipeline for free-form acquisition of shape and reflectance of objects using common off-the-shelf illuminators, such as LED lights, that can be placed arbitrarily close to the objects. We acquire multiple digital photographs of the studied object shot from a stationary camera. In each photograph, a light is freely positioned around the object in order to cover a wide variety of illumination directions. While common free-form acquisition appro...
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