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CEAS
2007
Springer
14 years 2 months ago
Image Spam Filtering by Content Obscuring Detection
We address the problem of filtering image spam, a rapidly spreading kind of spam in which the text message is embedded into attached images to defeat spam filtering techniques b...
Battista Biggio, Giorgio Fumera, Ignazio Pillai, F...
CVPR
2005
IEEE
14 years 1 months ago
Speckle-Constrained Filtering of Ultrasound Images
Ultrasound images provide the clinician with noninvasive, low cost, and real-time images that can help them in diagnosis, plannnig and therapy. However, although the human eye is ...
Karl Krissian, Ron Kikinis, Carl-Fredrik Westin, K...
ICIP
2009
IEEE
14 years 9 months ago
Adaptive Directional Wavelet Transform Using Pre-directional Filtering
This paper proposes a computationally efficient approach of adaptive directional wavelet transform (AD WT). The AD WT is based on lifting implementation of WT, and it is able to t...
IWCM
2004
Springer
14 years 1 months ago
Wiener-Optimized Discrete Filters for Differential Motion Estimation
Abstract. Differential motion estimation is based on detecting brightness changes in local image structures. Filters approximating the local gradient are applied to the image seque...
Kai Krajsek, Rudolf Mester
ISMM
2009
Springer
14 years 2 months ago
Spatially-Variant Anisotropic Morphological Filters Driven by Gradient Fields
Abstract. This paper deals with the theory and applications of spatially-variant mathematical morphology. We formalize the definition of spatially variant dilation/erosion and ope...
Rafael Verdú Monedero, Jesús Angulo,...