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Image Enlargement with Back Projection of Lost High-frequency Components
Hideaki Kawano,Hideaki Orii,Hiroshi Maeda,Hiromi Fukushima,Norikazu Ikoma 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
In this paper, in order to realize the image enlargement with high performance, we propose a new enlargement method, which restores high-frequency components lost in the interpolation-based methods, by using high-frequency esti-mation. The estimation is based on the eigenspace method proposed by Amano et al..The proposed enlargement method can generate lost high-frequency components by using pairs of low-and high-frequency components of the original image, and is referred as back projection for lost high-frequency components (BPLHF). Experimental results show the proposed method can achieve promising enlargement.