The objective of this work is to generate complete, high resolution models of real world scenes (3D geometric and texture information) from passive intensity images and active range sensors. JRC has been investigating this topic and has developed tools aiming at automatic registration based on feature correspondences between colour intensity and laser reflectance images. The correspondences computed through a rescaling and matching procedure are then used to evaluate the camera's internal and external parameters. The video image is then re-projected into the local laser coordinate frame using the computed camera parameters. The obtained image is used to evaluate the precision of the registration and can also be used directly to texture map the 3D models. The next step will be the use of the intensity information to improve the final model not only by texturing it but also by correcting and introducing new details. Here we see several views of a textured model of a part of the Bornholm church obtained by re-projecting the video image into the 3D model.
Sequeira V., Ng K., Wolfart E., Gonçalves J.G.M., Hogg D.C. - Automated Reconstruction of 3D Models from Real Environments, in ISPRS Journal of Photogrammetry and Remote Sensing - Elsevier, vol. 54, pp. 1-22, February 1999.
Wolfart E., Sequeira V., Ng K., Butterfield S., Gonçalves J.G.M., Hogg D.C. - Hybrid Approach to the Construction of Triangulated 3D Models, in: Lecture Notes in Computer Science 1542, H.I. Christensen (Ed.) - Springer, Proceedings of the Int. Conference on Computer Vision Systems - ICVS '99, pp. 489-508, Las Palmas, Spain, January 1999.
Sequeira V., Ng K., Wolfart E., Gonçalves J.G.M., Hogg D.C. - Automated 3D reconstruction of interiors with multiple scan-views, in SPIE Proceedings Vol. 3641-Videometrics VI, SPIE-Photonics West - Electronic Imaging'99 International Symposium, pp. 106-117, San Jose (CA), USA, January 1999.
Ng K.C., Sequeira V. (*), Butterfield S., Hogg D.C., Gonçalves J.G.M. - An Integrated Multi-Sensory System for Photo-Realistic 3D Scene Reconstruction, in Proceedings of the ISPRS (Int. Society for Photogrammetry and Remote Sensing) International Symposium on Real-Time Imaging and Dynamic Analysis, pp. 356-363, Hakodate, Japan, June 1998. [(*) This paper won the Young Author's Award for Ng (Univ. Leeds) and Sequeira (JRC)].