Title :
Generalized parallel-perspective stereo mosaics from airborne video
Author :
Zhu, Zhigang ; Hanson, Allen R. ; Riseman, Edward M.
Author_Institution :
Dept. of Comput. Sci., City Coll. of New York, USA
Abstract :
In this paper, we present a new method for automatically and efficiently generating stereoscopic mosaics by seamless registration of images collected by a video camera mounted on an airborne platform. Using a parallel-perspective representation, a pair of geometrically registered stereo mosaics can be precisely constructed under quite general motion. A novel parallel ray interpolation for stereo mosaicing (PRISM) approach is proposed to make stereo mosaics seamless in the presence of obvious motion parallax and for rather arbitrary scenes. Parallel-perspective stereo mosaics generated with the PRISM method have better depth resolution than perspective stereo due to the adaptive baseline geometry. Moreover, unlike previous results showing that parallel-perspective stereo has a constant depth error, we conclude that the depth estimation error of stereo mosaics is in fact a linear function of the absolute depths of a scene. Experimental results on long video sequences are given.
Keywords :
error analysis; image registration; image representation; image segmentation; image sequences; stereo image processing; adaptive baseline geometry; airborne video; arbitrary scenes; depth estimation error; depth resolution; geometrically registered stereo mosaics; linear function; motion parallax; parallel perspective representation; parallel perspective stereo mosaics; parallel ray interpolation for stereo mosaicing method; seamless image registration; video camera; video sequences; Cameras; Estimation error; Geometry; Image registration; Interpolation; Layout; Rendering (computer graphics); Robot vision systems; Stereo vision; Video sequences; Aircraft; Algorithms; Artifacts; Artificial Intelligence; Computer Graphics; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Information Storage and Retrieval; Motion; Numerical Analysis, Computer-Assisted; Pattern Recognition, Automated; Photogrammetry; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Subtraction Technique; User-Computer Interface; Video Recording;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
DOI :
10.1109/TPAMI.2004.1262190
