Photogrammetric determination of the location and orientation of a group of cameras for a perspective transformation on a new autostereoscopic display

Francisco Penafiel; Jesus Gomez; Juan D. Montes; Pascual Campoy; Javier Fernandez; Rafael Aracil

doi:10.1117/12.205860

30 March 1995 Photogrammetric determination of the location and orientation of a group of cameras for a perspective transformation on a new autostereoscopic display

Francisco Penafiel, Jesus Gomez, Juan D. Montes, Pascual Campoy, Javier Fernandez, Rafael Aracil

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Proceedings Volume 2409, Stereoscopic Displays and Virtual Reality Systems II; (1995) https://doi.org/10.1117/12.205860
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

This paper presents a methodology for determining the spacial location and orientation of a multi-viewpoint image set (MVIS) in relation to an absolute coordinate system for their projection on a new autostereoscopic display based on the angular image differentiation system patented by Montes. The different points of view from which a real scene is acquired are most of the time completely unknown a priori. To determine such camera locations and orientations, two algorithms based on photogrammetric techniques are applied. The first one named `Numerical plotting of a photo pair' consists on the calculation of the relative orientation of two different photographs of the scene. The second algorithm named `Resection in space' takes into account the projection of the 3D points onto the rest of the photographs to determine their absolute location and orientation. Once the absolute location and orientation of each of the images of the MVIS is known, a perspective correction is needed before its projection. This is done so because the image perspective deformations can introduce visual distortions that could be appreciated by an observer. For this purpose, a backward warping transformation is applied to each image depending on the positions of both the acquisition coordinate system, calculated through the previously mentioned algorithms, and the reproduction coordinate system.

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Francisco Penafiel, Jesus Gomez, Juan D. Montes, Pascual Campoy, Javier Fernandez, and Rafael Aracil "Photogrammetric determination of the location and orientation of a group of cameras for a perspective transformation on a new autostereoscopic display", Proc. SPIE 2409, Stereoscopic Displays and Virtual Reality Systems II, (30 March 1995); https://doi.org/10.1117/12.205860

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KEYWORDS

3D image processing

Cameras

Autostereoscopic displays

Image processing

Patents

Photography

3D acquisition

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