PROJECTIVE MULTITEXTURING OF CURRENT 3D CITY MODELS AND POINT CLOUDS WITH MANY HISTORICAL IMAGES

Iconographic image collections are a cultural heritage that could reach a larger audience by proposing their immersive presentation in a 3D web application. Proposing a historical street view application, based on these historical images, raises issues such as the unavailability of historical 3D mod...

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Bibliographic Details
Main Authors: Gomes de Castro, M. S., Brédif, M.
Format: Conference Proceeding
Language:English
Subjects:
Applications programs
Cultural heritage
Cultural resources
Diachronic analysis
Heterogeneity
Horses
Rendering
Terrain models
Three dimensional models
Online Access:Get full text
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Summary:Iconographic image collections are a cultural heritage that could reach a larger audience by proposing their immersive presentation in a 3D web application. Proposing a historical street view application, based on these historical images, raises issues such as the unavailability of historical 3D models of the scene and the heterogeneity and sparsity of these photographs. We propose to use the 3D city and terrain models of the current scene, as well as a 3D point cloud if available, to simultaneously reproject and blend many historical images using an image-based rendering approach. Our contributions raise significantly the number of projective textures blended per rendering pass (typically from 8 to 40) on triangular meshes (of the 3D city and terrain models) and on point clouds. As a first step to tackle diachrony artifacts, we also propose a simple point cloud classification to filter in the shader the points corresponding to building or terrain details from the points corresponding to transient objects.
ISSN:2194-9050
2194-9042
2194-9050
DOI:10.5194/isprs-annals-V-4-2022-213-2022