11 years 9 months ago
Curvature Regularization for Curves and Surfaces in a Global Optimization Framework
Length and area regularization are commonplace for inverse problems today. It has however turned out to be much more difficult to incorporate a curvature prior. In this paper we pr...
Petter Strandmark, Fredrik Kahl
253views Image Analysis» more  CAIP 2011»
11 years 9 months ago
Detection of Retinal Vascular Bifurcations by Trainable V4-Like Filters
Abstract. The detection of vascular bifurcations in retinal fundus images is important for finding signs of various cardiovascular diseases. We propose a novel method to detect su...
George Azzopardi, Nicolai Petkov
92views more  3DUI 2011»
11 years 9 months ago
Cortical neural response to visual navigation through a Virtual environment
This poster reports the preliminary results of an on-going near infrared spectroscopy (NIRS) study conducted to examine cortical response to visual motion typically found in Virtu...
Zifan Wang, Richard So, Chehin Chan, Arnold Wilkin...
92views more  JOCN 2011»
12 years 15 days ago
Rapid Modulation of Sensory Processing Induced by Stimulus Conflict
■ Humans are constantly confronted with environmental stimuli that conflict with task goals and can interfere with successful behavior. Prevailing theories propose the existence...
Lawrence G. Appelbaum, David V. Smith, Carsten Nic...
95views more  IJON 1998»
12 years 9 months ago
Self-organization and segmentation in a laterally connected orientation map of spiking neurons
The RF-SLISSOM model integrates two separate lines of research on computational modeling of the visual cortex. Laterally connected self-organizing maps have been used to model how...
Yoonsuck Choe, Risto Miikkulainen
165views more  JCNS 2000»
12 years 9 months ago
A Population Density Approach That Facilitates Large-Scale Modeling of Neural Networks: Analysis and an Application to Orientati
We explore a computationally efficient method of simulating realistic networks of neurons introduced by Knight, Manin, and Sirovich (1996) in which integrate-and-fire neurons are ...
Duane Q. Nykamp, Daniel Tranchina
90views more  IJON 2007»
12 years 9 months ago
Spatially organized spike correlation in cat visual cortex
Inspired by optical recordings from visual cortex which show maps of orientation selectivity, and the finding that very similar patterns of population activity occur when the neu...
Denise Berger, David Warren, Richard Normann, Amos...
96views more  IJON 2007»
12 years 9 months ago
How do stimulus-dependent correlations between V1 neurons affect neural coding?
Nearby neurons in the visual cortex often partially synchronize their spiking activity. Despite the widespread observation of this phenomenon, its importance for visual coding and...
Fernando Montani, Adam Kohn, Matthew A. Smith, Sim...
132views more  IJON 2007»
12 years 9 months ago
Emergence of population synchrony in a layered network of the cat visual cortex
Recently, a quantitative wiring diagram for the local neuronal network of cat visual cortex was described [T. Binzegger, R.J. Douglas, K.A.C. Martin, A quantitative map of the cir...
Jens Kremkow, Arvind Kumar, Stefan Rotter, Ad Aert...
101views more  NECO 2008»
12 years 9 months ago
Rapid Convergence to Feature Layer Correspondences
ll Text][Abstract] , May 1, 2008; 99 (5): 2496-2509.J Neurophysiol T. O. Sharpee, K. D. Miller and M. P. Stryker Natural Stimuli On the Importance of Static Nonlinearity in Estimat...
Jörg Lücke, Christian Keck, Christoph vo...