Nicolai Petkov

Orcid: 0000-0003-2163-8647

Affiliations:
  • University of Groningen, Netherlands


According to our database1, Nicolai Petkov authored at least 158 papers between 1992 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

Legend:

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Online presence:

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Bibliography

2024
Regressing Transformers for Data-efficient Visual Place Recognition.
CoRR, 2024

2023
Keynote Address: Improving Contour Detection by Surround Suppression of Texture.
Proceedings of the 18th International Workshop on Semantic and Social Media Adaptation and Personalization, 2023

Data-Efficient Large Scale Place Recognition with Graded Similarity Supervision.
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2023

2022
LTC-Mapping, Enhancing Long-Term Consistency of Object-Oriented Semantic Maps in Robotics.
Sensors, 2022

[email protected], an ecosystem of virtual environments and tools for realistic indoor robotic simulation.
Expert Syst. Appl., 2022

A framework for feature selection through boosting.
Expert Syst. Appl., 2022

2021
<i>ViMantic</i>, a distributed robotic architecture for semantic mapping in indoor environments.
Knowl. Based Syst., 2021

Generalized Contrastive Optimization of Siamese Networks for Place Recognition.
CoRR, 2021

Exploiting Spatio-Temporal Coherence for Video Object Detection in Robotics.
Proceedings of the Computer Analysis of Images and Patterns, 2021

MTStereo 2.0: Accurate Stereo Depth Estimation via Max-Tree Matching.
Proceedings of the Computer Analysis of Images and Patterns, 2021

2020
Hierarchical Approach to Classify Food Scenes in Egocentric Photo-Streams.
IEEE J. Biomed. Health Informatics, 2020

AReN: A Deep Learning Approach for Sound Event Recognition Using a Brain Inspired Representation.
IEEE Trans. Inf. Forensics Secur., 2020

Efficient binocular stereo correspondence matching with 1-D Max-Trees.
Pattern Recognit. Lett., 2020

Topic modelling for routine discovery from egocentric photo-streams.
Pattern Recognit., 2020

Enhanced robustness of convolutional networks with a push-pull inhibition layer.
Neural Comput. Appl., 2020

Modular domain-to-domain translation network.
Neural Comput. Appl., 2020

MTStereo 2.0: improved accuracy of stereo depth estimation withMax-trees.
CoRR, 2020

Virtual Reality for Pain Management in Cancer: A Comprehensive Review.
IEEE Access, 2020

2019
Proposal for an eHealth Based Ecosystem Serving National Healthcare.
IEEE J. Biomed. Health Informatics, 2019

Robust Inhibition-Augmented Operator for Delineation of Curvilinear Structures.
IEEE Trans. Image Process., 2019

Learning skeleton representations for human action recognition.
Pattern Recognit. Lett., 2019

Learning representations of sound using trainable COPE feature extractors.
Pattern Recognit., 2019

Globular cluster detection in the GAIA survey.
Neurocomputing, 2019

Detection of <i>u</i>-serrated patterns in direct immunofluorescence images of autoimmune bullous diseases by inhibition-augmented COSFIRE filters.
Int. J. Medical Informatics, 2019

Towards Emotion Retrieval in Egocentric PhotoStream.
CoRR, 2019

Towards Unsupervised Familiar Scene Recognition in Egocentric Videos.
CoRR, 2019

A Push-Pull Layer Improves Robustness of Convolutional Neural Networks.
CoRR, 2019

Learning sound representations using trainable COPE feature extractors.
CoRR, 2019

Place and Object Recognition by CNN-Based COSFIRE Filters.
IEEE Access, 2019

TB-Places: A Data Set for Visual Place Recognition in Garden Environments.
IEEE Access, 2019

Automatic Determination of Vertical Cup-to-Disc Ratio in Retinal Fundus Images for Glaucoma Screening.
IEEE Access, 2019

Estimation of Muscle Scores of Live Pigs Using a Kinect Camera.
IEEE Access, 2019

Facilitating the learning process in parallel computing by using instant messaging.
Proceedings of the Seventh International Conference on Technological Ecosystems for Enhancing Multiculturality, 2019

Integration of CNN into a Robotic Architecture to Build Semantic Maps of Indoor Environments.
Proceedings of the Advances in Computational Intelligence, 2019

Trainable COPE Features for Sound Event Detection.
Proceedings of the Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications, 2019

Unsupervised Routine Discovery in Egocentric Photo-Streams.
Proceedings of the Computer Analysis of Images and Patterns, 2019

Place Recognition in Gardens by Learning Visual Representations: Data Set and Benchmark Analysis.
Proceedings of the Computer Analysis of Images and Patterns, 2019

Brain-Inspired Algorithms for Processing of Visual Data.
Proceedings of the Brain-Inspired Computing - 4th International Workshop, 2019

2018
TrimBot2020: an outdoor robot for automatic gardening.
CoRR, 2018

Camera Localization in Outdoor Garden Environments Using Artificial Landmarks.
Proceedings of the IEEE International Work Conference on Bioinspired Intelligence, 2018

Brain-Inspired Robust Delineation Operator.
Proceedings of the Computer Vision - ECCV 2018 Workshops, 2018

Towards Egocentric Person Re-Identification and Social Pattern Analysis.
Proceedings of the Applications of Intelligent Systems, 2018

Detection of Globular Clusters in the Halo of Milky Way.
Proceedings of the Applications of Intelligent Systems, 2018

Automatic Segmentation of Indoor and Outdoor Scenes from Visual Lifelogging.
Proceedings of the Applications of Intelligent Systems, 2018

Predicting Slaughter Weight in Pigs with Regression Tree Ensembles.
Proceedings of the Applications of Intelligent Systems, 2018

2017
Appearance-invariant place recognition by discriminatively training a convolutional neural network.
Pattern Recognit. Lett., 2017

Color-blob-based COSFIRE filters for object recognition.
Image Vis. Comput., 2017

Inhibition-augmented COSFIRE model of shape-selective neurons.
IBM J. Res. Dev., 2017

Action recognition by learning pose representations.
CoRR, 2017

Delineation of line patterns in images using B-COSFIRE filters.
Proceedings of the International Conference and Workshop on Bioinspired Intelligence, 2017

Marker selection for the detection of trisomy 21 using generalized matrix learning vector quantization.
Proceedings of the 2017 International Joint Conference on Neural Networks, 2017

Sentiment Recognition in Egocentric Photostreams.
Proceedings of the Pattern Recognition and Image Analysis - 8th Iberian Conference, 2017

Towards Egocentric Sentiment Analysis.
Proceedings of the Computer Aided Systems Theory - EUROCAST 2017, 2017

Evaluation of Whole-Image Descriptors for Metric Localization.
Proceedings of the Computer Aided Systems Theory - EUROCAST 2017, 2017

City-scale continuous visual localization.
Proceedings of the 2017 European Conference on Mobile Robots, 2017

Detection of Curved Lines with B-COSFIRE Filters: A Case Study on Crack Delineation.
Proceedings of the Computer Analysis of Images and Patterns, 2017

A real-time system for audio source localization with cheap sensor device.
Proceedings of the 14th IEEE International Conference on Advanced Video and Signal Based Surveillance, 2017

2016
Audio Surveillance of Roads: A System for Detecting Anomalous Sounds.
IEEE Trans. Intell. Transp. Syst., 2016

Automating Vector Autoregression on Electronic Patient Diary Data.
IEEE J. Biomed. Health Informatics, 2016

Odor recognition in robotics applications by discriminative time-series modeling.
Pattern Anal. Appl., 2016

Supervised vessel delineation in retinal fundus images with the automatic selection of B-COSFIRE filters.
Mach. Vis. Appl., 2016

Inhibition-augmented trainable COSFIRE filters for keypoint detection and object recognition.
Mach. Vis. Appl., 2016

Special issue on selected papers from CAIP 2015.
Mach. Vis. Appl., 2016

Image-based localization using Gaussian Processes.
Proceedings of the International Conference on Indoor Positioning and Indoor Navigation, 2016

Increased generalization capability of trainable COSFIRE filters with application to machine vision.
Proceedings of the 23rd International Conference on Pattern Recognition, 2016

Time-frequency analysis for audio event detection in real scenarios.
Proceedings of the 13th IEEE International Conference on Advanced Video and Signal Based Surveillance, 2016

2015
Reliable detection of audio events in highly noisy environments.
Pattern Recognit. Lett., 2015

Trainable COSFIRE filters for vessel delineation with application to retinal images.
Medical Image Anal., 2015

MED-NODE: A computer-assisted melanoma diagnosis system using non-dermoscopic images.
Expert Syst. Appl., 2015

Training a Convolutional Neural Network for Appearance-Invariant Place Recognition.
CoRR, 2015

Integrated Electronic Health Record Database Management System: A Proposal.
Proceedings of the Enabling Health Informatics Applications [ICIMTH 2015, 2015

Multiscale Blood Vessel Delineation Using B-COSFIRE Filters.
Proceedings of the Computer Analysis of Images and Patterns, 2015

Automatic Differentiation of u- and n-serrated Patterns in Direct Immunofluorescence Images.
Proceedings of the Computer Analysis of Images and Patterns, 2015

Filter-Based Approach for Ornamentation Detection and Recognition in Singing Folk Music.
Proceedings of the Computer Analysis of Images and Patterns, 2015

Recognition of Architectural and Electrical Symbols by COSFIRE Filters with Inhibition.
Proceedings of the Computer Analysis of Images and Patterns, 2015

Cutting Edge Localisation in an Edge Profile Milling Head.
Proceedings of the Computer Analysis of Images and Patterns, 2015

Bio-Inspired Filters for Audio Analysis.
Proceedings of the Brain-Inspired Computing - Second International Workshop, 2015

Car crashes detection by audio analysis in crowded roads.
Proceedings of the 12th IEEE International Conference on Advanced Video and Signal Based Surveillance, 2015

2014
Erratum to: Adaptive Matrices and Filters for Color Texture Classification.
J. Math. Imaging Vis., 2014

Ventral-stream-like shape representation: from pixel intensity values to trainable object-selective COSFIRE models.
Frontiers Comput. Neurosci., 2014

Automated Segmentation of Folk Songs Using Artificial Neural Networks.
Proceedings of the NCTA 2014 - Proceedings of the International Conference on Neural Computation Theory and Applications, part of IJCCI 2014, Rome, Italy, 22, 2014

Classification system for mortgage arrear management.
Proceedings of the IEEE Conference on Computational Intelligence for Financial Engineering & Economics, 2014

2013
Automatic detection of vascular bifurcations in segmented retinal images using trainable COSFIRE filters.
Pattern Recognit. Lett., 2013

Adaptive Matrices and Filters for Color Texture Classification.
J. Math. Imaging Vis., 2013

Assessment of acrosome state in boar spermatozoa heads using n-contours descriptor and RLVQ.
Comput. Methods Programs Biomed., 2013

Generating personalized advice for schizophrenia patients.
Artif. Intell. Medicine, 2013

A Shape Descriptor Based on Trainable COSFIRE Filters for the Recognition of Handwritten Digits.
Proceedings of the Computer Analysis of Images and Patterns, 2013

COSFIRE: A Brain-Inspired Approach to Visual Pattern Recognition.
Proceedings of the Brain-Inspired Computing - International Workshop, 2013

2012
New Families of Fourier Eigenfunctions for Steerable Filtering.
IEEE Trans. Image Process., 2012

Corrigendum to "Cluster-based adaptive metric classification" [Neurocomputing 81 (2012) 33-40].
Neurocomputing, 2012

Cluster-based adaptive metric classification.
Neurocomputing, 2012

A CORF computational model of a simple cell that relies on LGN input outperforms the Gabor function model.
Biol. Cybern., 2012

Detection of Retinal Vascular Bifurcations by Rotation- and Scale-Invariant COSFIRE Filters.
Proceedings of the Image Analysis and Recognition - 9th International Conference, 2012

Contour Detection by CORF Operator.
Proceedings of the Artificial Neural Networks and Machine Learning - ICANN 2012, 2012

Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters.
Proceedings of CBMS 2012, 2012

2011
CAIP - Computer Analysis of Images and Patterns.
Pattern Recognit., 2011

An improved model for surround suppression by steerable filters and multilevel inhibition with application to contour detection.
Pattern Recognit., 2011

Learning effective color features for content based image retrieval in dermatology.
Pattern Recognit., 2011

Edge and line oriented contour detection: State of the art.
Image Vis. Comput., 2011

Adaptive Matrices for Color Texture Classification.
Proceedings of the Computer Analysis of Images and Patterns, 2011

Detection of Retinal Vascular Bifurcations by Trainable V4-Like Filters.
Proceedings of the Computer Analysis of Images and Patterns, 2011

2010
Steerable Filtering Using Novel Circular Harmonic Functions with Application to Edge Detection.
Proceedings of the 20th International Conference on Pattern Recognition, 2010

Closed form of the steered elongated Hermite-Gauss wavelets.
Proceedings of the International Conference on Image Processing, 2010

2009
Continuous Glass Patterns for Painterly Rendering.
IEEE Trans. Image Process., 2009

Glass Patterns and Artistic Imaging.
Proceedings of the Advances in Image and Video Technology, Third Pacific Rim Symposium, 2009

Adaptive Metrics for Content Based Image Retrieval in Dermatology.
Proceedings of the 17th European Symposium on Artificial Neural Networks, 2009

Estimation of Boar Sperm Status Using Intracellular Density Distribution in Grey Level Images.
Proceedings of the Similarity-Based Clustering, 2009

Reduced Inverse Distance Weighting Interpolation for Painterly Rendering.
Proceedings of the Computer Analysis of Images and Patterns, 13th International Conference, 2009

2008
Adaptive Pseudo Dilation for Gestalt Edge Grouping and Contour Detection.
IEEE Trans. Image Process., 2008

Automatic classification of the acrosome status of boar spermatozoa using digital image processing and LVQ.
Comput. Biol. Medicine, 2008

Fast multiresolution contour completion.
Proceedings of the Image Processing: Algorithms and Systems VI, 2008

2007
Artistic Edge and Corner Enhancing Smoothing.
IEEE Trans. Image Process., 2007

A Biologically Motivated Multiresolution Approach to Contour Detection.
EURASIP J. Adv. Signal Process., 2007

Edge and corner preserving smoothing for artistic imaging.
Proceedings of the Image Processing: Algorithms and Systems V, 2007

Multilevel surround inhibition: a biologically inspired contour detector.
Proceedings of the Image Processing: Algorithms and Systems V, 2007

2006
Effect of High Curvature Point Deletion on the Performance of Two Contour Based Shape Recognition Algorithms.
Int. J. Pattern Recognit. Artif. Intell., 2006

Contour Detection by Multiresolution Surround Inhibition.
Proceedings of the International Conference on Image Processing, 2006

Contour detection by surround inhibition in the Circular Harmonic Functions domain.
Proceedings of the 14th European Signal Processing Conference, 2006

Classification of Boar Sperm Head Images using Learning Vector Quantization.
Proceedings of the 14th European Symposium on Artificial Neural Networks, 2006

LVQ acrosome integrity assessment of boar sperm cells.
Proceedings of the Computational Modeling of Objects Represented in Images-Fundamentals, 2006

Contour detection by surround suppression of texture.
Proceedings of the Computational Modeling of Objects Represented in Images-Fundamentals, 2006

2005
Robustness of Shape Descriptors to Incomplete Contour Representations.
IEEE Trans. Pattern Anal. Mach. Intell., 2005

A cognitive evaluation procedure for contour based shape descriptors .
Int. J. Hybrid Intell. Syst., 2005

Classification of Boar Spermatozoid Head Images Using a Model Intracellular Density Distribution.
Proceedings of the Progress in Pattern Recognition, 2005

Statistical Approach to Boar Semen Head Classification Based on Intracellular Intensity Distribution.
Proceedings of the Computer Analysis of Images and Patterns, 11th International Conference, 2005

Algorithm That Mimics Human Perceptual Grouping of Dot Patterns.
Proceedings of the Brain, 2005

Incomplete Contour Representations and Shape Descriptors: ICR Test Studies.
Proceedings of the Brain, 2005

2004
Contour and boundary detection improved by surround suppression of texture edges.
Image Vis. Comput., 2004

GAP Test: A Cognitive Evaluation Procedure for Shape Descriptors.
Proceedings of the 4th International Conference on Hybrid Intelligent Systems (HIS 2004), 2004

2003
Contour detection based on nonclassical receptive field inhibition.
IEEE Trans. Image Process., 2003

Distance sets for shape filters and shape recognition.
IEEE Trans. Image Process., 2003

Suppression of contour perception by band-limited noise and its relation to nonclassical receptive field inhibition.
Biol. Cybern., 2003

The Role of Non-CRF Inhibition in Contour Detection.
Proceedings of the 11-th International Conference in Central Europe on Computer Graphics, 2003

Contour detection operators based on surround inhibition.
Proceedings of the 2003 International Conference on Image Processing, 2003

2002
Comparison of texture features based on Gabor filters.
IEEE Trans. Image Process., 2002

Improved Contour Detection by Non-classical Receptive Field Inhibition.
Proceedings of the Biologically Motivated Computer Vision Second International Workshop, 2002

2001
Hyper-systolic matrix multiplication.
Parallel Comput., 2001

2000
Computational model of dot-pattern selective cells.
Biol. Cybern., 2000

Fast Atomic Decomposition by the Inhibition Method.
Proceedings of the 15th International Conference on Pattern Recognition, 2000

A Nonlinear Texture Operator Specialized in the Analysis of Dot-Patterns.
Proceedings of the 15th International Conference on Pattern Recognition, 2000

A Comparative Study of Filter Based Texture Operators Using Mahalanobis Distance.
Proceedings of the 15th International Conference on Pattern Recognition, 2000

Graph-Based Features for Texture Discrimination.
Proceedings of the 15th International Conference on Pattern Recognition, 2000

1999
Nonlinear operator for oriented texture.
IEEE Trans. Image Process., 1999

Nonlinear operator for blob texture segmentation.
Proceedings of the IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing (NSIP'99), 1999

1998
Grating cell operator features for oriented texture segmentation.
Proceedings of the Fourteenth International Conference on Pattern Recognition, 1998

1997
Computational models of visual neurons specialised in the detection of periodic and aperiodic oriented visual stimuli: bar and grating cells.
Biol. Cybern., 1997

BLAS-3 for the Quadrics Parallel Computer.
Proceedings of the High-Performance Computing and Networking, 1997

1995
A Computational Model of Periodic-Pattern-Selective Cells.
Proceedings of the From Natural to Artificial Neural Computation, 1995

Use of Cortical Filters and Neural Networks in a Self-Organising Image Classification System.
Proceedings of the Image Analysis and Processing, 8th International Conference, 1995

Biologically motivated self-organizing image classification system.
Proceedings of the High-Performance Computing and Networking, 1995

Person identification based on multiscale matching of cortical images.
Proceedings of the High-Performance Computing and Networking, 1995

1994
Large scale natural vision simulations.
Future Gener. Comput. Syst., 1994

Conceiving Computationally Intensive Approaches to Vision (Invited Paper).
Proceedings of the High-Performance Computing and Networking, 1994

Optical Flow Applied to Person Identification.
Proceedings of the Massively Parallel Processing Applications and Develompent, 1994

1993
Face Recognition on the Connection Machine CM-5.
Proceedings of the Parallel Computing: Trends and Applications, 1993

Biologically Motivated Approach to Face Recognition.
Proceedings of the New Trends in Neural Computation, 1993

1992
Quark propagator on the Connection Machine.
Parallel Comput., 1992

Statistical analysis of simulation-generated time series: Systolic vs. semi-systolic correlation on the Connection Machine.
Parallel Comput., 1992


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