Image Retargeting with Protection of Object Arrangement

Kazu MISHIBA  Takeshi YOSHITOME  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E97-D   No.6   pp.1583-1589
Publication Date: 2014/06/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E97.D.1583
Type of Manuscript: PAPER
Category: Image Processing and Video Processing
Keyword: 
content-aware image retargeting,  warping method,  image resize,  object arrangement,  

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Summary: 
The relative arrangement, such as relative positions and orientations among objects, can play an important role in expressing the situation such as sports games and race scenes. In this paper, we propose a retargeting method that allows maintaining the relative arrangement. Our proposed retargeting method is based on a warping method which finds an optimal transformation by solving an energy minimization problem. To achieve protection of object arrangement, we introduce an energy that enforces all the objects and the relative positions among these objects to be transformed by the same transformation in the retargeting process. In addition, our method imposes the following three types of conditions in order to obtain more satisfactory results: protection of important regions, avoiding extreme deformation, and cropping with preservation of the balance of visual importance. Experimental results demonstrate that our proposed method maintains the relative arrangement while protecting important regions.