ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
In the last few years, we have witnessed an explosion in applications of sparse representation, the majority of which share the need for finding sparse solutions of underdetermine...
ICASSP
2009
IEEE
2009
IEEE
Contrasting emotion-bearing laughter types in multiparticipant vocal activity detection for meetings
14 years 6 months ago
The detection of laughter in conversational interaction presents an important challenge in meeting understanding, important primarily because laughter is predictive of the emotion...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
In this paper a new approach for activity and dominance modeling in meetings is presented. For this purpose low level acoustic and visual features are extracted from audio and vid...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
This paper presents a robust video fingerprinting based on visual attention regions. Video fingerprints, which are a set of short feature vectors, are unique to video clips and us...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
We study the phonetic information in the signal from an ultrasonic “microphone”, a device that emits an ultrasonic wave toward a speaker and receives the reflected, Doppler-s...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
This work presents a class of unidirectional lifting-based wavelet transforms for an arbitrary communication graph in a wireless sensor network. These transforms are unidirectiona...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
This paper presents a blind dereverberation method designed to recover the subband envelope of an original speech signal from its reverberant version. The problem is formulated as...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
We present a data-driven framework for expanding the lexicon to improve Mandarin broadcast news and conversation speech recognition. The lexicon expansion includes the generation ...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
A psychoacoustically constrained and distortion minimized speech enhancement algorithm is considered. In general, noise reduction leads to speech distortion, and thus, the goal of...
ICASSP
2009
IEEE
14 years 6 months ago
2009
IEEE
Periodicity attracts special attention in human cognition. Hence it is important to consider that in automatic analysis of motion events. This paper presents a method for represen...