Image Fusion Using PCA And Directional Discrete Cosine Transform - Couverture souple

Sharma, Reecha; Kaur, Balwinder

 
9786202005869: Image Fusion Using PCA And Directional Discrete Cosine Transform
Couverture souple
ISBN 10 : 6202005866 ISBN 13 : 9786202005869
Editeur : LAP LAMBERT Academic Publishing, 2017

Synopsis

Image fusion is a technique that integrate complimentary details from multiple input images such that the new image give more information and more suitable for the purpose of human visual perception. Nearly all block-based transform schemes for image and video coding developed so far choose the 2-D discrete cosine transform (DCT) of a square block shape. With almost no exception, this conventional DCT is implemented separately through two 1-D transforms, one along the vertical direction and another along the horizontal direction. We develop a new block-based DCT framework in which the first transform may choose to follow a direction other than the vertical or horizontal one. The coefficients produced by all directional transforms in the first step are arranged appropriately so that the second transform can be applied to the coefficients that are best aligned with each other. Compared with the conventional DCT, the resulting directional DCT framework is able to provide a better coding performance for image blocks that contain directional edges-a popular scenario in many image signals.

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Présentation de l'éditeur

Image fusion is a technique that integrate complimentary details from multiple input images such that the new image give more information and more suitable for the purpose of human visual perception. Nearly all block-based transform schemes for image and video coding developed so far choose the 2-D discrete cosine transform (DCT) of a square block shape. With almost no exception, this conventional DCT is implemented separately through two 1-D transforms, one along the vertical direction and another along the horizontal direction. We develop a new block-based DCT framework in which the first transform may choose to follow a direction other than the vertical or horizontal one. The coefficients produced by all directional transforms in the first step are arranged appropriately so that the second transform can be applied to the coefficients that are best aligned with each other. Compared with the conventional DCT, the resulting directional DCT framework is able to provide a better coding performance for image blocks that contain directional edges-a popular scenario in many image signals.

Biographie de l'auteur

She is working as Assistant Professor in ECE department Punjabi University Patiala, India.She has eleven years of teaching experience in Punjabi University Patiala. She has published More than 50 research papers in International/ National journals and conferences. She has guided 20 M.Tech. students. She has published 5 ebooks.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2017
Langue
anglais
ISBN 10 
6202005866
ISBN 13 
9786202005869
Reliure
Broché
Nombre de pages
60
Coordonnées du fabricant
non disponible
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