MetaCartSign in to MyCiteSeer

Include Citations | Advanced Search | Help

Include Citations | Advanced Search | Help

  Mosaicing from a Translating Camera, with E cient Application of Super-Resolution. MS.c Thesis Submitted By

Download:
Download as a PDF
by Assaf Zomet
http://www.cs.huji.ac.il/~zomet/thesis.pdf
Add To MetaCart

Abstract:

Mosaicing and super resolution are two ways to combine information from multiple frames in video sequences. Mosaicing displays the information of multiple frames in a single panoramic image. Super-resolution uses regions which appear in multiple frames to improve resolution and reduce noise. Combining both methods enables to represent all the static information in the sequence in a compact and visual way. This work presents new algorithms for mosaicing, super resolution, and their combination. In the rst part, a solution is proposed for mosaicing video sequences taken from a translating camera. Based on some general assumptions on the geometrical structure of the scene, the algorithm handles the parallax which is the result of depth di erences, and creates a mosaic image which is tailored to the scene. We call this method Generalized Manifold Mosaicing. Only few of the existing mosaicing algorithms can handle these depth di erences, and it is shown that the proposed algorithm outperforms them. The proposed algorithm can also solve the case of a camera rotating along an arbitrary constant axis. When trying to combine mosaicing and super resolution there is a problem: The alignment

Citations

461 Hierarchical modelbased motion estimation – Bergen, Anandan, et al. - 1992
199 Video mosaics for virtual environments – Szeliski - 1996
190 Catadioptric omnidirectional camera – Nayar - 1997
178 Iterative Methods for Linear and Nonlinear Equations – Kelley - 1995
142 Improving Resolution by Image Registration – Irani, Peleg - 1991
122 Restoration of a single superresolution image from several blurred, noisy, and undersampled measured images – Elad, Feuer - 1997
122 Extraction of highresolution frames from video sequences – Schultz, Stevenson - 1996
104 Mosaic based representation of video sequences and their applications – Irani, Anandan, et al. - 1995
104 Virtual bellows: Constructing high-quality images from video – Mann, Picard - 1994
95 Motion analysis for image enhancement: resolution, occlusion and transparency – Irani, Peleg - 1993
82 Panoramic mosaics by manifold projection – Peleg, Herman - 1997
71 Tekalp, “Superresolution Video Reconstruction with Arbitrary Sampling Lattices and Nonzero Aperture Time – Patti, Sezan, et al. - 1997
64 Panoramic representation for route recognition by a mobile robot – Zheng, Tsuji - 1992
59 Stereo panorama with a single camera – Peleg, Ben-Ezra - 1999
54 Improved resolution from sub-pixel shifted pictures – Ur, Gross - 1992
39 Truncated sampling expansions – Papoulis - 1967
39 High resolution image recovery from image-plane arrays, using convex projections – Stark, Oskoui - 1989
33 Image sequence enhancement using sub-pixel displacements – Keren, Peleg, et al. - 1988
21 Universal Mosaicing Using Pipe Projection – Peleg, Rousso - 1998
16 Reconstruction of high resolution 3d visual information using sub-pixel camera displacements – Berthod, Shekarforoush, et al. - 1994
16 Data-driven multichannel superresolution with application to video sequences – Shekarforoush, Chellappa - 1999
11 Mosaicing with generalized strips – Rousso, Peleg, et al. - 1997
11 Applying superresolution to panoramic mosaics – Zomet, Peleg - 1998
5 Super-resolution reconstruction of continuous image sequence – Elad, Feuer - 1996
3 Recursive reconstraction of high-resolution image from noisy undersampled frames – Kim, Bose, et al. - 1990
2 Generation of high-resolution stereo panoramic images by omnidirectional imaging sensor using hexagonal pyramidal mirrors – Yokoya, Iwasa, et al. - 1998
1 The periodic step gradient descent algorithm - general analysis and application to the super-resolution reconstuction problem – Elad, Feuer, et al. - 1998