On-site immersive visualization and rapid degradation annotation for mural degradation interactive analysis

摘要

On-site investigation is a natural efficient way to cognize tangible, while immersive visualization engages human senses to percept information from data. Hence on-site immersive visualization is able to provide a better stereo environment for enhancing the understanding of real scene and gathering insight. With the development of technology, optical see-through head-mounted devices can help researchers achieve the goals. However, worldwide ancient murals suffer from various degradations related to compound environmental factors, which requires interdisciplinary researches. And because of the importance of on-site investigation in heritage protection field, on-site visualization has to meet the requirements of relative professors. In this paper, we present a novel mixed reality, on-site immersive mural degradation visualization solution for analyzing relevance between degradation and environment data. And a rapid, simple, low-cost and interactive method of degradation contour annotation is provided to solve the data sparse problem of standard degradation data. To demonstrate the visualization solution and the annotation method, two application results with real data from Mogao Grottoes and domain-expert feedback are given. The solution is on-site, immersive oriented and integrates secure designs for heritages. Our solution is flexible and effective so that it can provide a better data analysis environment than conventional planar visualizations. It also provides a promising way to change work styles.