Abstract
Abstract. Image-based 3D models generation typically involves three stages, namely: 2D image acquisition, data processing, and 3D surface generation and editing. The availability of different easy-to-use and low-cost image acquisition solutions, combined with open-source or commercial processing tools, has democratized the 3D reconstruction and digital twin generation. But high geometric and texture fidelity on small- to medium-scale objects as well as integrated commercial system for mass 3D digitization are not available. The paper presents our effort to build such a system, i.e. a market-ready multi-camera solution and a customized reconstruction process for mass 3D digitization of small to medium objects. The system is realized as a joint work between industrial and academic partners, in order to employ the latest technologies for the needs of the market. The proposed versatile image acquisition and processing system pushes to the limits the 3D digitization pipeline combining a rigid capturing system with photogrammetric reconstruction methods.
Highlights
Nowadays image- or range-based 3D reconstruction methods are receiving a lot of attention due to the availability of fast, easy-touse and often low-cost hardware and software solutions. 3D has proven to be a promising approach to enable precise inspection, documentation, valorization, monitoring, communication, interaction and experience. 3D digital models, often called digital twins, are increasingly used in various fields and applications, such as e-commerce, website content, heritage restoration, industrial inspection and monitoring, digital archives and cataloguing, etc
Controlled acquisition setups are common in the 3D field for the digitization of small to medium scale objects
In this paper we present our holistic approach for the realization of a market-ready multi-view camera system for mass 3D digitization of small to medium objects
Summary
Nowadays image- or range-based 3D reconstruction methods are receiving a lot of attention due to the availability of fast, easy-touse and often low-cost hardware and software solutions. 3D has proven to be a promising approach to enable precise inspection, documentation, valorization, monitoring, communication, interaction and experience. 3D digital models, often called digital twins, are increasingly used in various fields and applications, such as e-commerce, website content, heritage restoration, industrial inspection and monitoring, digital archives and cataloguing, etc. The main drawback of such systems is their limited speed of digitisation given the time needed to set up the system and allow the turntable to virtually move the sensor around the object according to an acquisition schema that places the object at the centre of a sphere In these cases, the typical acquisition protocol requires a skilled operator to set up the sensor on a stand (i.e. a tripod) and adjust its position and orientation relatively to the object according to sensor’s optical characteristics (working distance, depth of field, field of view, resolution) in order to meet the project tolerances. There are many opportunities connected to multi-camera systems for high-quality 3D digitization of objects, in particular for the benefits provided in the post-processing and editing stages with less efforts by professionals required to match market needs.
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