By Rainer Stiefelhagen, Rachel Bowers, Jonathan Fiscus
This booklet constitutes the completely refereed joint post-workshop court cases of 2 co-located occasions: the second one foreign Workshop on category of occasions, actions and Relationships, transparent 2007, and the fifth wealthy Transcription 2007 assembly reputation review, RT 2007, held in succession in Baltimore, MD, united states, in may possibly 2007.
The workshops had complementary assessment efforts; transparent for the overview of human actions, occasions, and relationships in a number of multimodal facts domain names; and RT for the evaluate of speech transcription-related applied sciences from assembly room audio collections. The 35 revised complete papers awarded from transparent 2007 hide 3D individual monitoring, 2nd face detection and monitoring, individual and automobile monitoring on surveillance information, car and individual monitoring aerial video clips, individual id, head pose estimation, and acoustic occasion detection. The 15 revised complete papers awarded from RT 2007 are geared up in topical sections on speech-to-text, and speaker diarization.
Read or Download Multimodal Technologies for Perception of Humans: International Evaluation Workshops CLEAR 2007 and RT 2007, Baltimore, MD, USA, May 8-11, 2007, Revised Selected Papers PDF
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Additional resources for Multimodal Technologies for Perception of Humans: International Evaluation Workshops CLEAR 2007 and RT 2007, Baltimore, MD, USA, May 8-11, 2007, Revised Selected Papers
The CLEAR 2007 Evaluation 19 Fig. 12. Person tracking in surveillance video Each submission was evaluated against the ground truth using the metrics described in Section 3. In cases where the submission could not be scored due to limitations in USF DATE, the clip was marked as being problematic. e. the same clips were used in these calculations for all submissions, and scores were calculated only with respect to the objects retained in the test set. 3 2D Person Tracking The purpose of this task it is to track persons in a surveillance video clip.
CLEAR 2006. LNCS, vol. : Multiple-Target Tracking with Radar Applications, ch. 14. it Abstract. This paper presents the audio based tracking system designed at FBK-irst laboratories for the CLEAR 2007 evaluation campaign. The tracker relies on the Global Coherence Field theory that has proved to eﬃciently deal with the foreseen scenarios. Particular emphasis is given to the post-processing of localization hypotheses which guarantees smooth speaker trajectories and is crucial for the overall performance of the system.
When a DMN is available as in the addressed scenario, the contributions of each microphone pair are combined to derive a single estimation of the source position. The combination can be performed at the TDOAs level using one among several approaches: a maximum likelihood or least square framework, triangulation, spherical interpolation , spherical intersection , linear interpolation  and so on. Conversely, “direct approaches” derive the source position estimation performing a search, in a beamformer-like  fashion, over a grid Σ of potential source positions p and maximizing an objective function based either on coherence or energy.