Multispectral Photogrammetric Data Acquisition and Processing Forwall Paintings Studies

Abstract

ABSTRACT:In the field of wall paintings studies different imaging techniques are commonly used for the documentation and the decision making in term of conservation and restoration. There is nowadays some challenging issues to merge scientific imaging techniques in a multimodal context (i.e. multi-sensors, multi-dimensions, multi-spectral and multi-temporal approaches). For decades those CH objects has been widely documented with Technical Photography (TP) which gives precious information to understand or retrieve the painting layouts and history. More recently there is an increasing demand of the use of digital photogrammetry in order to provide, as one of the possible output, an orthophotomosaic which brings a possibility for metrical quantification of conservators/restorators observations and actions planning. This paper presents some ongoing experimentations of the LabCom MAP-CICRP relying on the assumption that those techniques can be merged through a common pipeline to share their own benefits and create a more complete documentation.

A Fully Automated Incremental Photogrammetric Processing Dedicated for Collaborative Remote-Computing Workflow

“…• Extension of automatic GCP's extraction and coded targets support (Calvet et al, 2016) • Automatic orthophotomosaic generation, included multiband support (Pamart et al, 2017) The versatility and robustness of the iterative process allows currently the enrichment of the 3D scene by adding oriented pictures (even coming from a wide range of acquisition modalities). But at this stage of development, the spatially oriented resources are merged without generating or displacing other 3D coordinates to reduce internal process of AIOLI (computational costs of indexing and propagation steps).…”

“…multisensor, multi-scalar, multi-spectral and/or simultaneously multitemporal). This article present the first implementation for automated processing of CH imaging multimodal acquisitions based on previous photogrammetric fusion experiments (Pamart et al, 2016, Pamart et al, 2017.…”

Image-based metric heritage modeling in the near-infrared spectrum

“…The availability of high-resolution, easily operated digital cameras for NIR acquisition, in combination with SfM/MVS image-based modeling techniques, has made feasible the 3D spectral modeling for heritage applications. Contemporary research, which showed promising results [22][23][24][25][26][27][28], led us to the motivation for further experimentation.…”

Review of Methods for Documentation, Management, and Sustainability of Cultural Heritage. Case Study: Museum of King Jan III’s Palace at Wilanów

“…Eventually, selected sets of bands acquired by hyperspectral sensors may be also used in this way after the identification of most informative bandwidths [129], but still it is not a common approach. In contrast, combining different bands is a very frequent practice in case of technical photography, where false color photographs are intensively exploited [91,[130][131][132][133][134].…”