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ICASSP
2011
IEEE
8 years 11 months ago
Azimuth-elevation direction finding using power measurements from single antenna
This paper considers the problem of extending the single antenna power measurements based direction finding to the two-dimensional (2D) case, and proposes a method to estimate th...
Joni Polili Lie, Thierry Blu, Chong Meng Samson Se...
ICASSP
2011
IEEE
8 years 11 months ago
On gradient type adaptive filters with non-symmetric matrix step-sizes
—In this contribution we provide a thorough stability analysis of gradient type algorithms with non-symmetric matrix step-sizes. We hereby extend existing analyses for symmetric ...
Markus Rupp
ICASSP
2011
IEEE
8 years 11 months ago
Automatic video annotation via Hierarchical Topic Trajectory Model considering cross-modal correlations
We propose a new statistical model, named Hierarchical Topic Trajectory Model (HTTM), for acquiring a dynamically changing topic model that represents the relationship between vid...
Takuho Nakano, Akisato Kimura, Hirokazu Kameoka, S...
ICASSP
2011
IEEE
8 years 11 months ago
A CLT on the SINR of the diagonally loaded Capon/MVDR beamformer
The Capon or minimum variance distorsionless response (MVDR) beamformer is a prominent example of spatial ltering structure in sensor array signal processing. Typical implementati...
Francisco Rubio, Xavier Mestre, Walid Hachem
ICASSP
2011
IEEE
8 years 11 months ago
Intra-session variability compensation and a hypothesis generation and selection strategy for speaker segmentation
This paper addresses the problem of speaker segmentation in two-speaker telephone conversations, using an eigenvoice based factor analysis approach. We present a set of improvemen...
Carlos Vaquero, Alfonso Ortega, Eduardo Lleida
ICASSP
2011
IEEE
8 years 11 months ago
On 2D localization of reflectors using robust beamforming techniques
This paper presents a method for the localization of reflectors in an acoustic environment, using robust beamforming techniques and a cylindrical microphone array, for which an i...
Edwin Mabande, Haohai Sun, Konrad Kowalczyk, Walte...
ICASSP
2011
IEEE
8 years 11 months ago
Video error concealment using sparse recovery and local dictionaries
Video error concealment is a post-processing technique that conceals the errors in a decoded video sequence based on data available only at the decoder. Most of the current techni...
Dzung Nguyen, Minh Dao, Trac Tran
ICASSP
2011
IEEE
8 years 11 months ago
A stochastic compartmental approach to modeling and simulation of cancer spheroid formation and evolution
In this paper we model and simulate a biological system describing the evolution of cancer stem cells into tumors. Starting from some basic hypotheses about the behavior of these ...
Mónica F. Bugallo, Shishir Dash, Galina Bot...
ICASSP
2011
IEEE
8 years 11 months ago
Generic object recognition using automatic region extraction and dimensional feature integration utilizing multiple kernel learn
Recently, in generic object recognition research, a classification technique based on integration of image features is garnering much attention. However, with a classifying techn...
Toru Nakashika, Akira Suga, Tetsuya Takiguchi, Yas...
ICASSP
2011
IEEE
8 years 11 months ago
Speaker authentication using video-based lip information
The lip-region can be interpreted as either a genetic or behavioural biometric trait depending on whether static or dynamic information is used. In this paper, we use a texture de...
Budhaditya Goswami, Chi-Ho Chan, Josef Kittler, Wi...
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