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2008
IEEE

Directional Lapped Transforms for Image Coding

9 years 1 months ago
Directional Lapped Transforms for Image Coding
This paper presents a scheme to design directional lapped transforms. Lapped transforms can be factorized into lifting steps. By introducing directional operator into each lifting step, the directional lapped transform is constructed. The directional lapped transform proposed not only preserves the advantages of lapped transforms, it also can represent directional signals more efficiently. An image coding scheme using the directional lapped transform is also described. Compared to the state-of-the-art image coding using lapped transform, HD Photo, the proposed scheme shows more than 20dB's gain for artificial images with
Jizheng Xu, Feng Wu, Jie Liang, Wenjun Zhang
Added 25 Dec 2009
Updated 25 Dec 2009
Type Conference
Year 2008
Where DCC
Authors Jizheng Xu, Feng Wu, Jie Liang, Wenjun Zhang
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