Abstract
Three dimensional modelling of artefacts and building interiors is a highly active research field in our days. Several techniques are being utilized to perform such a task, spanning from traditional surveying techniques and photogrammetry to structured light scanners, laser scanners and so on. New technological advancements in both hardware and software create new recording techniques, tools and approaches. In this paper we present a new recording and modelling approach based on the SwissRanger SR4000 range camera coupled with a Canon 400D dSLR camera. The hardware component of our approach consists of a fixed base, which encloses the range and SLR cameras. The two sensors are fully calibrated and registered to each other thus we were able to produce colorized point clouds acquired from the range camera. In this paper we present the initial design and calibration of the system along with experimental data regarding the accuracy of the proposed approach. We are also providing results regarding the modelling of interior spaces and artefacts accompanied with accuracy tests from other modelling approaches based on photogrammetry and laser scanning.
Highlights
Three dimensional modelling of artefacts and building interiors is a highly active research field in our days
The hardware of the proposed system is comprised of two basic components a Mesa Imaging SwissRanger SR4000 camera and a Canon 400D dSLR digital camera
The exterior orientation of the idealized image was extracted using ground control points coordinates determined automatically on the intensity image of the range camera and the optical image derived by the dSLR camera
Summary
Three dimensional modelling of artefacts and building interiors is a highly active research field in our days. 2006, Robbins et all, 2008, Chiabrando et all, 2009 presented calibration methodologies to increase the accuracy of a swissranger range camera, In this paper we present a new recording and modelling approach based on the SwissRanger SR4000 range camera coupled with a Canon 400D dSLR camera. The two sensors are fully calibrated and registered to each other we were able to produce colorized point clouds acquired from the range camera. In this paper we present the initial design and calibration of the system along with experimental data regarding the accuracy of the proposed approach. We are providing results regarding the modelling of interior spaces and artefacts accompanied with accuracy tests from other modelling approaches based on photogrammetry and laser scanning. Our initial processing showed that we achieved an accuracy of approximately 1/5 of the range camera’s groundels
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