Abstract
This work presents the implementation of a 3D reconstruction system capable of reconstructing a 360-degree scene with a single acquisition using a projection of patterns. The system is formed by two modules: the first module is a CCD camera with a parabolic mirror that allows the acquisition of catadioptric images. The second module consists of a light projector and a parabolic mirror that is used to generate the pattern projections over the object that will be reconstructed. The projection system has a 360-degree field of view and both modules were calibrated to obtain the extrinsic parameters. To validate the functionality of the system, we performed 3D reconstructions of three objects, and show the reconstruction error analysis.
Highlights
In recent times, 3D reconstruction systems have become fundamental for object modelling applications such as virtual environments development for archaeology [1, 2], video surveillance [3, 4], quality control processes [5, 6], disease diagnosis [7, 8], and measurement [9, 10].The 3D reconstruction systems that incorporate lenses and mirrors into acquired images with an omnidirectional field of view are called catadioptric systems
A stereo system with a texture projector can eliminate or reduce error matching. For this reason we propose a new 3D reconstruction system based on a projection system and a single catadioptric camera
In order to calibrate the catadioptric camera with the projection system, we develop the following procedure: A calibration pattern image was projected) in different positions over the mirror PM2
Summary
3D reconstruction systems have become fundamental for object modelling applications such as virtual environments development for archaeology [1, 2], video surveillance [3, 4], quality control processes [5, 6], disease diagnosis [7, 8], and measurement [9, 10].The 3D reconstruction systems that incorporate lenses and mirrors into acquired images with an omnidirectional field of view are called catadioptric systems. A common approach for 3D reconstruction is the use of structured light projection with a 360-degree laser line combined with omnidirectional stereo cameras that take images with multiple views [11, 12]. The disadvantage of these approaches is that we can only recover 3D information in the area of the laser incidence, limiting the reconstruction area. A stereo system with a texture projector can eliminate or reduce error matching For this reason we propose a new 3D reconstruction system based on a projection system and a single catadioptric camera
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