Sciweavers

ICASSP
2011
IEEE
13 years 3 months ago
A constrained matching pursuit approach to audio declipping
We present a novel sparse representation based approach for the restoration of clipped audio signals. In the proposed approach, the clipped signal is decomposed into overlapping f...
Amir Adler, Valentin Emiya, Maria G. Jafari, Micha...
ICASSP
2011
IEEE
13 years 3 months ago
A point target reference spectrum for general bistatic SAR processing
Focusing bistatic SAR data in frequency domain requires the two dimensional (2D) point target reference spectrum (PTRS). In this paper, a 2D PTRS is derived based on Loffeld’s b...
Junjie Wu, Jianyu Yang, Yulin Huang, Haiguang Yang...
ICASSP
2011
IEEE
13 years 3 months ago
Two dimensional non-separable adaptive directional lifting structure of discrete wavelet transform
In this paper, we propose a two dimensional (2D) non-separable adaptive directional lifting (ADL) structure of discrete wavelet transform (DWT) and its image coding application. C...
Taichi Yoshida, Taizo Suzuki, Seisuke Kyochi, Masa...
ICASSP
2011
IEEE
13 years 3 months ago
Spatio-temporal consistency in video disparity estimation
We present a novel stereo video disparity estimation method. The proposed method is a two-stage algorithm. During the first stage, initial disparity maps are computed in a frameb...
Ramsin Khoshabeh, Stanley H. Chan, Truong Q. Nguye...
ICASSP
2011
IEEE
13 years 3 months ago
Towards improving network flow watermarks using the repeat-accumulate codes
Network intruders try to hide their identity by relaying their traf c through a number of intermediate hosts, called stepping stones. Network ow watermarks have been used to detec...
Amir Houmansadr, Nikita Borisov
ICASSP
2011
IEEE
13 years 3 months ago
Blind beamformer for constant modulus signals based on relevance vector machine
The blind beamforming method for constant modulus (CM) signals based on relevance vector machine (RVM) is proposed. The proposed beamforming method is obtained by incorporating th...
Kyuho Hwang, Sooyong Choi
ICASSP
2011
IEEE
13 years 3 months ago
Down-scaling interlace video from H.264/AVC intra-coded bit stream
In this paper, we develop a method for generating thumbnail images from the interlaced H.264/AVC coded bit streams. We devise a method exploiting both the spatial and transform do...
Huy N. Tran, Hyung Suk Oh, Wonha Kim
ICASSP
2011
IEEE
13 years 3 months ago
Facial expression recognition using ensemble of classifiers
This paper presents a novel method for facial expression classification that employs the combination of two different feature sets in an ensemble approach. A pool of base classi...
Thiago H. H. Zavaschi, Alessandro L. Koerich, Luiz...
ICASSP
2011
IEEE
13 years 3 months ago
A collaborative filtering approach for quasi-brain-death EEG analysis
A novel method to evaluate the statistical significance differences between the groups of coma and brain death patients is presented. This is achieved based on the electroencepha...
Yili Xia, Ling Li, Jianting Cao, Martin Golz, Dani...
ICASSP
2011
IEEE
13 years 3 months ago
Source number estimation in impulsive noise environments using bootstrap techniques and robust statistics
We consider the problem of source number estimation in array processing when impulsive noise is present. To combat impulsive noise more effectively, two robust estimators with hig...
Zhihua Lu, Yacine Chakhchoukh, Abdelhak M. Zoubir