TIFS
2008
13 years 7 months ago
2008
This paper presents a procedure aimed at recognizing environmental sounds for surveillance and security applications. We propose to apply One-Class Support Vector Machines (1-SVMs...
TIFS
2008
13 years 7 months ago
2008
We present a theory for constructing linear subspace approximations to face-recognition algorithms and empirically demonstrate that a surprisingly diverse set of face-recognition a...
TIFS
2008
13 years 7 months ago
2008
We investigate the use of chaotic-type features for recorded speech steganalysis. Considering that data hiding within a speech signal distorts the chaotic properties of the origina...
TIFS
2008
13 years 7 months ago
2008
Combination functions typically used in biometric identification systems consider as input parameters only those matching scores which are related to a single person in order to de...
TIFS
2008
13 years 7 months ago
2008
TIFS
2008
13 years 7 months ago
2008
This paper presents a hierarchical watermarking framework for semiregular meshes. Three blind watermarks are inserted in a semiregular mesh with different purposes: a geometrically...
TIFS
2008
13 years 7 months ago
2008
This paper presents a security analysis for data hiding methods based on nested lattice codes, extending the analysis provided by previous works to a more general scenario. The se...
TIFS
2008
13 years 7 months ago
2008
We investigate three schemes for severe compression of iris images in order to assess what their impact would be on recognition performance of the algorithms deployed today for ide...
TIFS
2008
13 years 7 months ago
2008
Ordered channels, such as those provided by Internet protocol and transmission control protocol protocols, rely on sequence numbers to recover from packet reordering due to network...
TIFS
2008
13 years 7 months ago
2008
In this paper, we provide a unified framework for identifying the source digital camera from its images and for revealing digitally altered images using photo-response nonuniformit...