TY - JOUR
T1 - Shape reconstruction of heritage assets by polarization information
AU - Xue, F.
AU - Filin, S.
AU - Jin, W.
N1 - Publisher Copyright:
© 2023 International Society for Photogrammetry and Remote Sensing. All rights reserved.
PY - 2023/6/24
Y1 - 2023/6/24
N2 - Three-dimensional modeling of heritage assets poses a challenge when high reflectance and featureless surfaces are involved. Because of the complex reflection characteristics, traditional methods, either passive or active, tend to generate noisy and incomplete reconstruction results. To address this, we introduce in this paper a shape-from-polarization system and modeling strategy for the 3-D reconstruction of heritage assets. As demonstrated, by analyzing polarization properties of reflected light, we can generate by a single image pixel-level-resolution normal and depth maps. We consider two system prototypes involving a point light source but different in the polarizing camera configurations. They provide solutions for different reconstruction requirements and acquisition conditions. Our reconstruction model is common however to both involving a closed set of simple computation steps. Our evaluations demonstrate how the proposed method significantly improves the 3-D surface model completeness and level of detail, showing its suitability and value to reach the goal of a high-resolution survey of heritage assets, where traditional approaches tend to fail.
AB - Three-dimensional modeling of heritage assets poses a challenge when high reflectance and featureless surfaces are involved. Because of the complex reflection characteristics, traditional methods, either passive or active, tend to generate noisy and incomplete reconstruction results. To address this, we introduce in this paper a shape-from-polarization system and modeling strategy for the 3-D reconstruction of heritage assets. As demonstrated, by analyzing polarization properties of reflected light, we can generate by a single image pixel-level-resolution normal and depth maps. We consider two system prototypes involving a point light source but different in the polarizing camera configurations. They provide solutions for different reconstruction requirements and acquisition conditions. Our reconstruction model is common however to both involving a closed set of simple computation steps. Our evaluations demonstrate how the proposed method significantly improves the 3-D surface model completeness and level of detail, showing its suitability and value to reach the goal of a high-resolution survey of heritage assets, where traditional approaches tend to fail.
KW - Cultural heritage
KW - Image-based modeling
KW - Normal estimation
KW - Shape from Polarization
KW - Specular reflection
UR - http://www.scopus.com/inward/record.url?scp=85164668206&partnerID=8YFLogxK
U2 - 10.5194/isprs-archives-XLVIII-M-2-2023-1653-2023
DO - 10.5194/isprs-archives-XLVIII-M-2-2023-1653-2023
M3 - Conference article
AN - SCOPUS:85164668206
SN - 1682-1750
VL - 48
SP - 1653
EP - 1658
JO - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
JF - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
IS - M-2-2023
T2 - 29th CIPA Symposium on Documenting, Understanding, Preserving Cultural Heritage. Humanities and Digital Technologies for Shaping the Future
Y2 - 25 June 2023 through 30 June 2023
ER -