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Julius Kammerl

Julius Kammerl

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    Temporal Synchronization of Multiple Audio Signals
    Sasi Inguva
    Andy Crawford
    Hugh Denman
    Anil Kokaram
    Proceedings of the International Conference on Signal Processing (ICASSP), Florence, Italy (2014)
    Preview abstract Given the proliferation of consumer media recording devices, events often give rise to a large number of recordings. These recordings are taken from different spatial positions and do not have reliable timestamp information. In this paper, we present two robust graph-based approaches for synchronizing multiple audio signals. The graphs are constructed atop the over-determined system resulting from pairwise signal comparison using cross-correlation of audio features. The first approach uses a Minimum Spanning Tree (MST) technique, while the second uses Belief Propagation (BP) to solve the system. Both approaches can provide excellent solutions and robustness to pairwise outliers, however the MST approach is much less complex than BP. In addition, an experimental comparison of audio features-based synchronization shows that spectral flatness outperforms the zero-crossing rate and signal energy. View details
    Error resilient perceptual haptic data communication based on probabilistic receiver state estimation
    Fernanda Brandi
    Florian Schweiger
    Eckehard Steinbach
    Proceedings of the EuroHaptics Conference, Tampere, Finland (2012)
    Haptic communications
    Eckehard Steinbach
    Sandra Hirche
    Marc Ernst
    Fernanda Brandi
    Rahul Gopal Chaudhari
    Iason Vittorias
    Julius Kammerl, and Iason Vittorias. „Haptic communications”. Proceedings of the IEEE, Special Issue on Frontiers of Audiovisual Communications: Converges of Broadband, Computing and Rich Media, vol. 100(4) (2012), pp. 937-956
    Real-time compression of point cloud streams
    Nico Blodow
    Radu Bogdan Rusu
    Suat Gedikli
    Michael Beetz
    Eckehard Steinbach
    Proceedings of the IEEE International Conference on Robotics and Automation (ICRA), Minnesota, USA (2012)
    Combining contact models with perceptual data reduction for efficient haptic data communication in networked VEs
    Rahul Gopal Chaudhari
    Eckehard Steinbach
    IEEE Transactions on Instrumentation & Measurement, vol. 60(1) (2011), pp. 57-68
    Perceptual haptic data reduction in telepresence and teleaction systems
    Fernanda Brandi
    Rahul Gopal Chaudhari
    Sandra Hirche
    Eckehard Steinbach
    Iason Vittorias
    Multimedia Communication Technical Committee (MMTC) E-Letter, vol. 6(1) (2011), pp. 7-10
    Hybrid signal-based and geometry-based prediction for haptic data reduction
    Xiao Xu
    Rahul Chaudhari
    Eckehard Steinbach
    Proceedings of the IEEE International Symposium on Haptic Audio Visual Environments and Games, Nanchang, Jiangxi, China (2011)
    Haptic data compression and communication
    Eckehard Steinbach
    Sandra Hirche
    Iason Vittorias
    Rahul Gopal Chaudhari
    IEEE Signal Processing Magazine, vol. 28(1) (2011), pp. 87-96
    Perception-based data reduction for haptic force-feedback signals using velocity-adaptive deadbands
    Iason Vittorias
    Verena Nitsch,
    Berthold Faerber
    Eckehard Steinbach
    Sandra Hirche
    PRESENCE - Teleoperators and Virtual Environments, vol. 19(5) (2010)
    Error-resilient perceptual coding for networked haptic interaction
    Fernanda Brandi
    Eckehard Steinbach
    Proceedings of the ACM Multimedia (Full Paper), Firenze, Italy (2010)
    Establishing multimodal telepresence sessions using the session initiation protocol (SIP) and advanced haptic codecs
    Hawkeye King
    Blake Hannaford
    Eckehard Steinbach
    Proceedings of the Haptics Symposium, Massachusetts, USA (2010)
    High-fidelity recording, compression, and replay of visual-haptic telepresence sessions
    Eckehard Steinbach
    Proceedings of the International Conference on Image Processing (ICIP), Hong Kong, China (2010)
    Exploiting directional dependencies of force perception for lossy haptic data reduction
    Rahul Gopal Chaudhari
    Eckehard Steinbach
    Proceedings of the IEEE International Symposium on Haptic Audio Visual Environments and Games (HAVE), Phoenix, Arizona, USA (2010)
    On the impact of haptic data reduction and feedback modality on quality and task performance in a telepresence and teleaction system
    Verena Nitsch
    Berthold Faerber
    Eckehard Steinbach
    Proceedings of the EuroHaptics Conference, Amsterdam, Netherlands (2010)
    Perceptual coding of haptic data in time-delayed teleoperation
    Iason Vittorias
    Sandra Hirche
    Eckehard Steinbach
    Proceedings of the Third Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, Salt Lake City, UT, USA (2009)
    On the role of multimodal communication in telesurgery systems
    Robert Bauernschmitt
    Eva U. Braun
    Martin Buss
    Florian Fröhlich
    Sandra Hirche
    Gerhard Hirzinger
    Alois Knoll
    Rainer Konietschke
    Bernhard Kübler
    Rüdiger Lange
    Hermann Mayer
    Markus Rank
    Gerhard Schillhuber
    Christoph Staub
    Eckehard Steinbach
    Andreas Tobergte
    Heinz Ulbrich
    Iason Vittorias
    Chen Zhao
    Proceedings of the International Workshop on Multimedia Signal Processing, Rio de Janeiro, Brazil (2009)
    On the compression and rendering of event-triggered force transients in networked virtual environments
    Rahul Gopal Chaudhari
    Eckehard Steinbach
    Proceedings of the IEEE International Workshop on Haptic Audio Visual Environments and Games, Lecco, Italy (2009)
    Investigating the influence of temporal intensity changes on the apparent movement phenomenon
    Lara Rahal
    Jongeun Cha
    Eckehard Steinbach
    Abdulmotaleb El Saddik
    Proceedings of the Conference on Virtual Environments, Human-Computer Interfaces and Measurement Systems, Hong Kong, China (2009)
    Spatial resolution of vibrotactile perception on the human forearm when exploiting funneling illusion
    Ahmad Barghout
    Jongeun Cha
    Eckehard Steinbach
    Abdulmotaleb El Saddik
    Proceedings of the IEEE International Workshop on Haptic Audio Visual Environments and Games, Lecco, Italy (2009)
    A theoretical analysis of data reduction using the weber quantizer
    Peter Hinterseer
    Eckehard Steinbach
    Proceedings of the Data Compression Conference DCC, Snowbird, Utah, USA (2008)
    Deadband-based offline-coding of haptic media
    Eckehard Steinbach
    Proceedings of the ACM Multimedia 2008 (Full Paper), Vancouver, Canada
    A novel signal reconstruction algorithm for perception based data reduction in haptic signal communication
    Peter Hinterseer
    Eckehard Steinbach
    Proceedings of the First International Workshop on Networking Technology for Robotics and Applications, NeTRA, Honolulu, Hawaii, USA (2007)
    The weber quantizer: Perceptual coding for networked telepresence and teleaction
    Peter Hinterseer
    Eckehard Steinbach
    Subhasis Chaudhuri
    Proceedings of the First International Conference on Robot Communication and Coordination, Athens, Greece (2007)
    Audio watermarking using subband modulation spectra
    Sascha Disch
    Jürgen Herre
    Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, Honolulu, Hawaii, USA (2007)
    Limitations of human 3d force discrimination
    Helena Pongrac
    Berthold Färber
    Peter Hinterseer
    Eckehard Steinbach
    Proceedings of the HumanCentered Robotics Systems, Munich, Germany (2006)