402 search results - page 13 / 81 » Document Image Enhancement Using Directional Wavelet |
112
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ICIP
2007
IEEE
15 years 12 months ago
2007
IEEE
This paper discusses how to utilize both magnitude and phase information obtained from the complex directional lter bank (CDFB) for the purpose of texture image retrieval. The rel...
DCC
2010
IEEE
15 years 5 months ago
2010
IEEE
Block-based random image sampling is coupled with a projectiondriven compressed-sensing recovery that encourages sparsity in the domain of directional transforms simultaneously wi...
78
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TMI
1998
14 years 10 months ago
1998
Abstract— This paper presents an algorithm for speckle reduction and contrast enhancement of echocardiographic images. Within a framework of multiscale wavelet analysis, we apply...
ICIP
2005
IEEE
15 years 12 months ago
2005
IEEE
This paper proposes a new technique in wavelet video compression that exploits the spatiotemporal regularity of the video. A sequence of frames is said to be regular along the dire...
MICCAI
2008
Springer
15 years 11 months ago
2008
Springer
Abstract. In this paper, we explore the use of over-complete spherical wavelets in shape analysis of closed 2D surfaces. Previous work has demonstrated, theoretically and practical...