Stephan Hasler, Heiko Wersing, Edgar Körner , "A Comparison of Features in Parts-based Object Recognition Hierarchies", Artificial Neural Networks – ICANN 2007, pp. 210–219, 2007.
AbstractParts-based recognition has been suggested for generalizing from few training views in categorization scenarios. In this paper we present the results of a comparative investigation of different feature types with regard to their suitability for category discrimination. So patches of gray-scale images were compared with SIFT descriptors and patches from the high-level output of a feedforward hierarchy related to the ventral visual pathway. We disc...
Christian Goerick and Edgar Körner , "Elements of Cognitive Robotics", it - Information Technology, vol. 49, no. 4, pp. 213-217, 2007.
AbstractIn this paper we present our research aiming at creating a cognitive humanoid. We describe our understanding of the core elements of a processing architecture for such kind of an artifact. After these conceptual considerations we present our research results in the areas of task and body oriented motion control as well as visually and behaviorally oriented learning....
Ingo Fründ, Jeanette Schadow, Niko Busch, Ursula Körner, Christoph Herrmann , "Evoked gamma oscillations in human scalp EEG are test-retest reliable", Clinical Neurophysiology, vol. 118, no. 1, pp. 221–227, 2007.
AbstractOBJECTIVE: Evoked, phase-locked gamma oscillations of the electroencephalogram (EEG) have been demonstrated to be modulated by both bottom-up as well as top-down factors. However, to date the test-retest reliability of these oscillations has not been studied systematically. METHODS: We recorded EEG activity of 12 healthy volunteers in response to stimuli of different sizes. Each participant took part in two sessions separated by two weeks in time...
Hisashi Sugiura, Michael Gienger, Herbert Janßen, Christian Goerick , "Real-Time Collision Avoidance with Whole Body Motion Control for Humanoid Robots", IEEE-RSJ International Conference on Intelligent Robots and Systems (IROS 2007), 2007.
AbstractWe propose a self collision avoidance system that superposes trajectories in order not only to protect the robot's hardware but also to enable continuous motions. The system runs in real-time so that the robot can work in an uncertain environment. It is based on virtual forces between close segments of the robot. The avoidance movements are blended with a whole body motion control in order to change the priority between target reaching and collis...
Andreas Knoblauch, Rüdiger Kupper, Marc-Oliver Gewaltig, Ursula Körner, Edgar Körner , "A cell assembly based model for the cortical microcircuitry.", Neurocomputing, vol. 70(10-12), pp. 1838–1842, 2007.
Rüdiger Kupper, Marc-Oliver Gewaltig, Andreas Knoblauch, Ursula Körner, Edgar Körner , "From neurons to cortex: a multi-level approach to understanding the brain", Neurocomputing Research Trends, Nova Science Publishers, Inc., 2007.
AbstractAt the Honda Research Institute, we aim to understand the operating principles of the brain. We think that the cortex is composed of elementary building blocks, the columns, that apply one generic algorithm to varying sensory data. The brain is thus not a collection of highly specialized neural circuits, providing tailored solutions to individual problems, but it uses the same set of powerful processing strategies over and over again. Based on ne...
Bram Bolder, Mark Dunn, Michael Gienger, Herbert Janßen, Hisashi Sugiura, Christian Goerick , "Visually Guided Whole Body Interaction", IEEE International Conference on Robotics and Automation (ICRA 2007), 2007.
AbstractWe describe a system for visual interaction developed for humanoid robots. It enables the robot to interact with its environment using a smooth whole body motion control driven by stabilized visual targets. Targets are defined as visually extracted "proto-objects" and behavior-relevant object hypotheses and are stabilized by means of a short-term sensory memory. Selection mechanisms are used to switch between behavior alternatives for searching o...
Bernd Schneiders , "Objektdetektion mit einem hierarchischen Modell der Verarbeitung im visuellen Kortex", Univ. Applied Sciences Trier (Birkenfeld), 2007.
Julian Eggert, Sven Rebhan, Edgar Körner , "First steps towards an intentional vision system", Proceedings of the 5th International Conference on Computer Vision Systems, ICVS, 2007.
AbstractContrary to many standard vision systems which proceed in a cascaded feedforward manner, imposing a fixed order in the sequence of visual operations like detection preceding segmentation and classification, we develop here the idea of a vision system that flexibly controls the order and accessibility of visual processes during operation. Vision is hereby understood as the dynamic process of adaptation of visual parameters and modules as a functio...
Martin Ernst Heckmann, Frank Joublin, Christian Goerick , "Combining Rate and Place Information for Robust Pitch Extraction", Proc. INTERSPEECH 2007, pp. 2765-2768, 2007.
AbstractIn this paper we propose an algorithm for the robust extraction of pitch combining both temporal (rate) and pattern matching (place) techniques. Following a transformation into the spectral domain via the application of a Gammatone filter bank the rate information is extracted in each band via the zero crossing distances in that band. Next a comb filter with teeth at the harmonics of the current fundamental frequency hypothesis is set up, reflect...