30 May 2000 Video reframing relying on panoramic estimation based on a 3D representation of the scene
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Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000); doi: 10.1117/12.386570
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia
Abstract
This paper describes a new method for creating mosaic images from an original video and for computing a new sequence modifying some camera parameters like image size, scale factor, view angle... A mosaic image is a representation of the full scene observed by a moving camera during its displacement. It provides a wide angle of view of the scene from a sequence of images shot with a narrow angle of view camera. This paper proposes a method to create a virtual sequence from a calibrated original video and a rough 3D model of the scene. A 3D relationship between original and virtual images gives pixel correspondent in different images for a same 3D point in model scene. To texture the model with natural textures obtained in the original sequence, a criterion based on constraints related to the temporal variations of the background and 3D geometric considerations is used. Finally, in the presented method, the textured 3D model is used to recompute a new sequence of image with possibly different point of view and camera aperture angle. The algorithm is being proven with virtual sequences and, obtained results are encouraging up to now.
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Agnes de Simon, Jean Figue, Henri Nicolas, "Video reframing relying on panoramic estimation based on a 3D representation of the scene", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); doi: 10.1117/12.386570; https://doi.org/10.1117/12.386570
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KEYWORDS
3D modeling

Cameras

3D image processing

Video

Panoramic photography

Calibration

Data modeling

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