Parallax Effect Free Mosaicing of Underwater Video Sequence Based on Texture Features

In this paper, the authors present a feature-based technique for construction of mosaic image from underwater video sequence, which suffers from parallax distortion due to propagation properties of light in the underwater environment. The most of the available mosaic tools and underwater image mosai...

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Bibliographic Details
Published in:Signal and image processing : an international journal 2014-10, Vol.5 (5), p.13-13
Main Authors: Nagaraja, S, Prabhakar, C J, Kumar, Praveen P U
Format: Article
Language:English
Subjects:
Alignment
Construction
Mosaics
Parallax
Surface layer
Texture
Underwater
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Summary:In this paper, the authors present a feature-based technique for construction of mosaic image from underwater video sequence, which suffers from parallax distortion due to propagation properties of light in the underwater environment. The most of the available mosaic tools and underwater image mosaicing techniques yields final result with some artifacts such as blurring, ghosting and seam due to presence of parallax in the input images. Thus, their approach minimizes the parallax effects by adopting an efficient local alignment technique after global registration. They extract texture features using Centre Symmetric Local Binary Pattern (CS-LBP) descriptor in order to find feature correspondences, which are used further for estimation of homography through RANSAC. In order to increase the accuracy of global registration, we perform preprocessing such as colour alignment between two selected frames based on colour distribution adjustment. The approach minimizes the parallax effects considerably in final mosaic constructed using their own underwater video sequences.
ISSN:2229-3922
0976-710X
DOI:10.5121/sipij.2014.5502