NP
Nicolai Petkov
cs.CVcs.LGMachine learningAlgorithmsArtificial Intelligencecs.ROElectronic Health RecordsImage Processing, Computer-AssistedSoftwareSperm Head
On Valency
published · living versionsW_855av47z·v1 · currentpublished
TrimBot2020: an outdoor robot for automatic gardening
with Nicola Strisciuglio, Radim Tylecek, Michael Blaich, Peter Bieber +7
1 version
Preprints & journals
50 papers in the corpus · 1997–2025Machine learning methods on BioVid heat pain database for pain intensity estimation.41173924 · Pittara, Melpo, Anastasiou, Andreas, Andreou, Konstantinos et al.2025 · 3 citationsScientific reports. 2025;15(1):38173
The coming decade of digital brain research: A vision for neuroscience at the intersection of technology and computing.40800542 · Amunts, Katrin, Axer, Markus, Banerjee, Swati et al.2025 · 49 citationsImaging neuroscience (Cambridge, Mass.). 2024;2
Regressing Transformers for Data-efficient Visual Place Recognition2401.16304v1 · Mar'ia Leyva-Vallina, Nicola Strisciuglio, Nicolai Petkov2024 · 3 citationsarXiv
Data-efficient Large Scale Place Recognition with Graded Similarity Supervision2303.11739v2 · Maria Leyva-Vallina, Nicola Strisciuglio, Nicolai Petkov2023 · 68 citationsarXiv
Survey of feature selection and extraction techniques for stock market prediction.36687795 · Htun, Htet Htet, Biehl, Michael, Petkov, Nicolai2023 · 237 citationsFinancial innovation. 2023;9(1):26
Pre-insemination prediction of dystocia in dairy cattle.36521412 · Alsahaf, Ahmad, Gheorghe, Radu, Hidalgo, André M et al.2022 · 6 citationsPreventive veterinary medicine. 2023;210:105812
LTC-Mapping, Enhancing Long-Term Consistency of Object-Oriented Semantic Maps in Robotics.35890985 · Matez-Bandera, Jose-Luis, Fernandez-Chaves, David, Ruiz-Sarmiento, Jose-Raul et al.2022 · 3 citationsSensors (Basel, Switzerland). 2022;22(14)
Use of Convolutional Neural Networks for the Detection of u-Serrated Patterns in Direct Immunofluorescence Images to Facilitate the Diagnosis of Epidermolysis Bullosa Acquisita.34197776 · Shi, Chenyu, Meijer, Joost M, Azzopardi, George et al.2021 · 7 citationsThe American journal of pathology. 2021;191(9):1520-1525
MTStereo 2.0: improved accuracy of stereo depth estimation withMax-trees2006.15373v1 · Rafael Brandt, Nicola Strisciuglio, Nicolai Petkov2020 · 1 citationarXiv
Place recognition in gardens by learning visual representations: data set and benchmark analysis1906.12151v1 · Maria Leyva-Vallina, Nicola Strisciuglio, Nicolai Petkov2019 · 8 citationsarXiv
Robust Inhibition-Augmented Operator for Delineation of Curvilinear Structures.31247549 · Strisciuglio, Nicola, Azzopardi, George, Petkov, Nicolai2019 · 38 citationsIEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 2019;28(12):5852-5866
Hierarchical Approach to Classify Food Scenes in Egocentric Photo-Streams.31199277 · Martinez, Estefania Talavera, Leyva-Vallina, Maria, Sarker, Md Mostafa Kamal et al.2021 · 17 citationsIEEE journal of biomedical and health informatics. 2020;24(3):866-877
Towards Egocentric Person Re-identification and Social Pattern Analysis1905.04073v1 · Estefania Talavera, Alexandre Cola, Nicolai Petkov et al.2019 · 5 citationsarXiv
Unsupervised routine discovery in egocentric photo-streams1905.04076v1 · Estefania Talavera, Nicolai Petkov, Petia Radeva2019 · 7 citationsarXiv
Towards Unsupervised Familiar Scene Recognition in Egocentric Videos1905.04093v1 · Estefania Talavera, Nicolai Petkov, Petia Radeva2019 · 2 citationsarXiv
Towards Emotion Retrieval in Egocentric PhotoStream1905.04107v1 · Estefania Talavera, Petia Radeva, Nicolai Petkov2019 · 0 citationsarXiv
A Push-Pull Layer Improves Robustness of Convolutional Neural Networks1901.10208v1 · Nicola Strisciuglio, Manuel Lopez-Antequera, Nicolai Petkov2019 · 1 citationarXiv
Learning sound representations using trainable COPE feature extractors1901.06904v2 · Nicola Strisciuglio, Mario Vento, Nicolai Petkov2019 · 30 citationsPattern Recognition (2019)
Prediction of slaughter age in pigs and assessment of the predictive value of phenotypic and genetic information using random forest.30239725 · Alsahaf, Ahmad, Azzopardi, George, Ducro, Bart et al.2019 · 22 citationsJournal of animal science. 2018;96(12):4935-4943
Detection of u-serrated patterns in direct immunofluorescence images of autoimmune bullous diseases by inhibition-augmented COSFIRE filters.30623781 · Shi, Chenyu, Meijer, Joost M, Guo, Jiapan et al.2019 · 10 citationsInternational journal of medical informatics. 2019;122:27-36
Brain-inspired robust delineation operator1811.10240v1 · Nicola Strisciuglio, George Azzopardi, Nicolai Petkov2018 · 7 citationsarXiv
Using Neural Networks with Routine Health Records to Identify Suicide Risk: Feasibility Study.29934287 · DelPozo-Banos, Marcos, John, Ann, Petkov, Nicolai et al.2020 · 58 citationsJMIR mental health. 2018;5(2):e10144
Proposal for an eHealth Based Ecosystem Serving National Healthcare.29993757 · Schiza, Eirini C, Kyprianou, Theodoros C, Petkov, Nicolai et al.2020 · 48 citationsIEEE journal of biomedical and health informatics. 2019;23(3):1346-1357
TrimBot2020: an outdoor robot for automatic gardening1804.01792v2 · Nicola Strisciuglio, Radim Tylecek, Michael Blaich et al.2018 · 36 citationsarXivon Valency
Action recognition by learning pose representations1708.00672v1 · Alessia Saggese, Nicola Strisciuglio, Mario Vento et al.2017 · 3 citationsarXiv
Delineation of line patterns in images using B-COSFIRE filters1707.07438v1 · Nicola Strisciuglio, Nicolai Petkov2017 · 24 citationsarXiv
Detection of curved lines with B-COSFIRE filters: A case study on crack delineation1707.07747v1 · Nicola Strisciuglio, George Azzopardi, Nicolai Petkov2017 · 33 citationsarXiv
Sentiment Recognition in Egocentric Photostreams1703.09933v1 · Estefania Talavera, Nicola Strisciuglio, Nicolai Petkov et al.2017 · 11 citationsarXiv
Training a Convolutional Neural Network for Appearance-Invariant Place Recognition1505.07428v1 · Ruben Gomez-Ojeda, Manuel Lopez-Antequera, Nicolai Petkov et al.2015 · 50 citationsarXiv
Automating Vector Autoregression on Electronic Patient Diary Data.25680221 · Emerencia, Ando Celino, van der Krieke, Lian, Bos, Elisabeth H et al.2017 · 32 citationsIEEE journal of biomedical and health informatics. 2016;20(2):631-43
Contextual modulation as de-texturizer.25204771 · Gheorghiu, Elena, Kingdom, Frederick A A, Petkov, Nicolai2015 · 25 citationsVision research. 2014;104:12-23
Trainable COSFIRE filters for vessel delineation with application to retinal images.25240643 · Azzopardi, George, Strisciuglio, Nicola, Vento, Mario et al.2015 · 713 citationsMedical image analysis. 2015;19(1):46-57
Ventral-stream-like shape representation: from pixel intensity values to trainable object-selective COSFIRE models.25126068 · Azzopardi, George, Petkov, Nicolai2014 · 37 citationsFrontiers in computational neuroscience. 2014;8:80
A push-pull CORF model of a simple cell with antiphase inhibition improves SNR and contour detection.25057813 · Azzopardi, George, Rodríguez-Sánchez, Antonio, Piater, Justus et al.2016 · 49 citationsPloS one. 2014;9(7):e98424
Assessment of acrosome state in boar spermatozoa heads using n-contours descriptor and RLVQ.23790406 · Alegre, E, Biehl, M, Petkov, N et al.2014 · 13 citationsComputer methods and programs in biomedicine. 2013;111(3):525-36
Generating personalized advice for schizophrenia patients.23419698 · Emerencia, Ando, van der Krieke, Lian, Sytema, Sjoerd et al.2013 · 13 citationsArtificial intelligence in medicine. 2013;58(1):23-36
Discriminative power of visual attributes in dermatology.22724513 · Giotis, Ioannis, Visser, Margaretha, Jonkman, Marcel et al.2013 · 3 citationsSkin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI). 2013;19(1):e123-31
A CORF computational model of a simple cell that relies on LGN input outperforms the Gabor function model.22526357 · Azzopardi, George, Petkov, Nicolai2012 · 113 citationsBiological cybernetics. 2012;106(3):177-89
New families of Fourier eigenfunctions for steerable filtering.22167631 · Papari, Giuseppe, Campisi, Patrizio, Petkov, Nicolai2012 · 16 citationsIEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 2012;21(6):2931-43
Comparison of color representations for content-based image retrieval in dermatology.20384889 · Bosman, Hedde H W J, Petkov, Nicolai, Jonkman, Marcel F2010 · 18 citationsSkin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI). 2010;16(1):109-13
Automatic classification of the acrosome status of boar spermatozoa using digital image processing and LVQ.18339365 · Alegre, Enrique, Biehl, Michael, Petkov, Nicolai et al.2008 · 29 citationsComputers in biology and medicine. 2008;38(4):461-8
Motion detection, noise reduction, texture suppression, and contour enhancement by spatiotemporal Gabor filters with surround inhibition.17960417 · Petkov, Nicolai, Subramanian, Easwar2008 · 76 citationsBiological cybernetics. 2007;97(5-6):423-39
Artistic edge and corner enhancing smoothing.17926928 · Papari, Giuseppe, Petkov, Nicolai, Campisi, Patrizio2007 · 83 citationsIEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 2007;16(10):2449-62
Statistical approach to boar semen evaluation using intracellular intensity distribution of head images.17543208 · Sánchez, Lidia, Petkov, N, Alegre, E2007 · 23 citationsCellular and molecular biology (Noisy-le-Grand, France). 2007;52(6):38-43
Robustness of shape descriptors to incomplete contour representations.16285377 · Ghosh, Anarta, Petkov, Nicolai2005 · 50 citationsIEEE transactions on pattern analysis and machine intelligence. 2005;27(11):1793-804
Suppression of contour perception by band-limited noise and its relation to nonclassical receptive field inhibition.12647231 · Petkov, Nicolai, Westenberg, Michel A2003 · 109 citationsBiological cybernetics. 2003;88(3):236-46
Distance sets for shape filters and shape recognition.18237892 · Grigorescu, Cosmin, Petkov, Nicolai2009 · 239 citationsIEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 2003;12(10):1274-86
Contour detection based on nonclassical receptive field inhibition.18237948 · Grigorescu, Cosmin, Petkov, Nicolai, Westenberg, Michel A2010 · 445 citationsIEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 2003;12(7):729-39
Nonlinear operator for oriented texture.18267411 · Kruizinga, P, Petkov, N2009 · 214 citationsIEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 1999;8(10):1395-407
Computational models of visual neurons specialised in the detection of periodic and aperiodic oriented visual stimuli: bar and grating cells.9116079 · Petkov, N, Kruizinga, P1997 · 180 citationsBiological cybernetics. 1997;76(2):83-96
Career total: 250 works. 50 are in this corpus.
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