@conference {cSegura07,
	title = {Multimodal Head Orientation towards Attention Tracking in Smart Rooms},
	booktitle = {2007 International Conference on Acoustics, Speech and Signal Processing},
	year = {2007},
	abstract = {<p>This paper presents a multimodal approach to head pose estimation and 3D gaze orientation of individuals in a SmartRoom environment equipped with multiple cameras and microphones. We first introduce the two monomodal approaches as reference. In video, we estimate head orientation from color information by exploiting spatial redundancy among cameras. Audio information is processed to estimate the direction of the voice produced by a speaker making use of the directivity characteristics of the head radiation pattern. Two multimodal information fusion schemes working at data and decision levels are analyzed in terms of accuracy and robustness of the estimation. Experimental results conducted over the CLEAR evaluation database are reported and the comparison of the proposed multimodal head pose estimation algorithms with the reference monomodal approaches proves the effectiveness of the proposed approach.</p>},
	author = {Segura, C. and Abad, A. and Casas, J. and Hernando, J.}
}
@inbook {bAbad07,
	title = {UPC Audio, Video and Multimodal Person Tracking Systems in the CLEAR Evaluation Campaign},
	booktitle = {Lecture notes in computer science},
	volume = {4122},
	year = {2007},
	pages = {93{\textendash}104},
	publisher = {Springer},
	organization = {Springer},
	address = {Berlin / Heidelberg},
	abstract = {<p>Reliable measures of person positions are needed for computational perception of human activities taking place in a smart-room environment. In this work, we present the Person Tracking systems developed at UPC for audio, video and audio-video modalities in the context of the EU funded CHIL project research activities. The aim of the designed systems, and particularly of the new contributions proposed, is to deal robustly in both single and multiperson localization tasks independently on the environmental conditions. Besides the technology description, experimental results conducted for the CLEAR evaluation workshop are also reported.</p>},
	isbn = {978-3-540-69567-7},
	doi = {10.1007/978-3-540-69568-4_6},
	author = {Abad, A. and Cristian Canton-Ferrer and Segura, C. and Landabaso, J. and Macho, D. and Casas, J. and Hernando, J. and M. Pard{\`a}s and Nadeu, C.}
}
@conference {cAbad06,
	title = {UPC Audio, Video and Multimodal Person Tracking Systems in the CLEAR Evaluation Campaign},
	booktitle = {CLEAR{\textquoteright}06 Evaluation Campaign and Workshop - Classification of Events, Activities and Relationships},
	year = {2006},
	pages = {93{\textendash}104},
	isbn = {978-3-540-69567-7},
	author = {Abad, A. and Cristian Canton-Ferrer and Cristian Canton-Ferrer and Segura, C. and Landabaso, J. and Macho, D. and Casas, J. and Hernando, J. and M. Pard{\`a}s and Nadeu, C.}
}
