Enhancing color texture quality of 3D models for digital preservation of indigenous ceramic artworks

Abstract

We present a contribution to the digital preservation of artworks made by the Wauja and Karaja indians; both communities acknowledged for their expertise in ceramic artworks and the symbolism embedded in their art. Our goal is to enhance the texture color quality of 3D models obtained from color and depth images of a laser scanner. Although laser scanners offer high-performance regarding depth information, the color information is still poor and limits the generation of realistic texture. We propose a method through which we add color information obtained from a high resolution digital camera to solve this limitation. Thus, our approach generates texture maps for 3D models by using color data obtained from triplets of: (1) high resolution photographs captured by a digital camera; and (2) color and (3) range images captured by a laser scanner. For each triplet, we calculate a partial texture map for the 3D model. Then, we merge all partial maps based on weights we have defined to reflect the reliability of each partial texture map pixel. We present several results of preserved artworks with realistic and enhanced quality texture maps. The 3D models can be visualized through a tool we developed to support the virtual exhibition of the artworks.

Transcultural language, native Chilean peoples and a new AI-based artistic-cultural expression

“…Therefore, we must look to other countries and continents to find relevant work. For example, there is a speciality dedicated to the study of 3D reconstruction methods for digital preservation Andrade (2009), Andrade (2012), Gomes (2015). This paucity of proposals for the digital preservation gives us the opportunity to innovate, as we will see in this paper.…”

IMAGO Visualization System: An Interactive Web-Based 3D Visualization System for Cultural Heritage Applications

“…The complete reconstruction developed is composed of several specific steps, described in [3], [13]. Finally, the third phase generates and applies a high quality texture in the 3D model, as proposed in [2], [14].…”