HDR ABTF Scanner

HDR ABTF Scanner

HDR ABTF Scanner

The HDR ABTF Scanner digitizes optical material behavior of objects (e.g. textiles and leather) faster, easier and more precisely than conventional scanners.

It captures texture and light-surface interaction of materials in different lighting situations using an Approximate Bidirectional Texturing Function (ABTF), captured from a hemispherical distribution of incident light angles. Moreover, exposure bracketing per direction of incidence represents the object surface in High Dynamic Range (HDR).

Users may apply the scanned material when working with programs for true-to-life 3D visualizations, e.g. as part of the design process.

Results:

The HDR ABTF Scanner captures optical material properties and lighting behavior of flat objects with sizes up to 16,5 cm x 16,5 (square) cm or 20 cm x 12 cm (oblong). The 3D scanner can be adjusted to objects with a maximum height of 10 cm.

Material behavior of flat materials


Shiny and mirroring materials


Output for fast real-time rendering


Reproduction of spatially-varying light dependent material effects


Color calibrated


Direct support of Autodesk® 3ds Max® as rendering platform

It captures optical material properties


Setup includes one color camera 25mp, 20 light sources and turntable


Measurement Volume is 16,5 square cm for square objects or 20 cm x 12 cm oblong (Adjustable for objects of heights up to 10cm).


Resolution is 30 µm lateral resolution

Recent Publications:

Play Video
Acquisition of optical material behavior of surfaces for physically realistic 3D rendering.

Links to the Publications

Latest Publication

Abstract

We show how to overcome the single weakness of an existing fully automatic system for acquisition of spatially varying optical material behavior of real object surfaces. While the expression of spatially varying material behavior with spherical dependence on incoming light as a 4D texture (an ABTF material model) allows flexible mapping onto arbitrary 3D geometry, with photo-realistic rendering and interaction in real time, ...

Full Paper Here.

Latest Publication

ABSTRACT

We created a fully automatic system for acquisition of spatially varying optical material behavior of real object surfaces under a hemisphere of individual incident light directions. The resulting measured material model is flexibly applicable to arbitrary 3D model geometries, can be photorealistically rendered and interacted with in real-time and is not constrained to isotropic materials.

Full Paper Here.

Latest Publication

ABSTRACT

We have lifted the one weakness of an existing fully automatic acquisition system for spatially varying optical material behavior of real object surfaces. While its expression of spatially varying material behavior with spherical dependence on incoming light as 4D texture (ABTF material model) allows flexible mapping on arbitrary 3D geometries, photo-realistic rendering and interaction in real-time ...

Full Paper Here.