1990 …2022
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Research Output 1990 2019

2012
19 Citations (Scopus)

A computer vision approach for the assessment of autism-related behavioral markers

Hashemi, J., Spina, T. V., Tepper, M., Esler, A. N., Morellas, V., Papanikolopoulos, N. P. & Sapiro, G., Dec 1 2012, 2012 IEEE International Conference on Development and Learning and Epigenetic Robotics, ICDL 2012. 6400865

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer vision
Gait analysis
14 Citations (Scopus)

A multi-sensor visual tracking system for behavior monitoring of at-risk children

Sivalingam, R., Cherian, A., Fasching, J., Walczak, N., Bird, N., Morellas, V., Murphy, B., Cullen, K. R., Lim, K. O., Sapiro, G. & Papanikolopoulos, N. P., Jan 1 2012, 2012 IEEE International Conference on Robotics and Automation, ICRA 2012. Institute of Electrical and Electronics Engineers Inc., p. 1345-1350 6 p. 6225280

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Monitoring
Sensors
Computer vision
Automation
Cameras
3 Citations (Scopus)

A nonintrusive system for behavioral analysis of children using multiple RGB+depth sensors

Walczak, N., Fasching, J., Toczyski, W., Sivalingam, R., Bird, N., Cullen, K. R., Morellas, V., Murphy, B., Sapiro, G. & Papanikolopoulos, N. P., May 11 2012, 2012 IEEE Workshop on the Applications of Computer Vision, WACV 2012. p. 217-222 6 p. 6163011

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Data mining
Screening
Sensors
3 Citations (Scopus)

Aquapod: A small amphibious robot with sampling capabilities

Dhull, S., Canelon, D., Kottas, A., Dancs, J., Carlson, A. & Papanikolopoulos, N., Dec 1 2012, 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2012. p. 100-105 6 p. 6385733

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Sampling
Barreling
Fluidics
Buoyancy
4 Citations (Scopus)

A solution with multiple robots and Kinect systems to implement the parallel coverage problem

Min, H. J., Fehr, D. & Papanikolopoulos, N. P., Oct 5 2012, 2012 20th Mediterranean Conference on Control and Automation, MED 2012 - Conference Proceedings. p. 555-560 6 p. 6265696

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Communication
Costs
28 Citations (Scopus)

Compact covariance descriptors in 3D point clouds for object recognition

Fehr, D., Cherian, A., Sivalingam, R., Nickolay, S., Morellas And, V. & Papanikolopoulos, N. P., Jan 1 2012, 2012 IEEE International Conference on Robotics and Automation, ICRA 2012. Institute of Electrical and Electronics Engineers Inc., p. 1793-1798 6 p. 6224740

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Object recognition
Range finders
Sensors
Covariance matrix
Mobile robots
4 Citations (Scopus)

Coverage optimized active learning for k - NN classifiers

Joshi, A. J., Porikli, F. & Papanikolopoulos, N. P., Jan 1 2012, 2012 IEEE International Conference on Robotics and Automation, ICRA 2012. Institute of Electrical and Electronics Engineers Inc., p. 5353-5358 6 p. 6225054. (Proceedings - IEEE International Conference on Robotics and Automation).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Classifiers
Image recognition
Image classification
Learning algorithms
Robotics
2 Citations (Scopus)

Detecting risk-markers in children in a preschool classroom

Fasching, J., Walczak, N., Sivalingam, R., Cullen, K. R., Murphy, B., Sapiro, G., Morellas, V. & Papanikolopoulos, N. P., Dec 1 2012, 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2012. p. 1010-1016 7 p. 6385732

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Screening
Sensors
Psychiatry

Frictional step climbing analysis of tumbling locomotion

Hemes, B. & Papanikolopoulos, N. P., Jan 1 2012, 2012 IEEE International Conference on Robotics and Automation, ICRA 2012. Institute of Electrical and Electronics Engineers Inc., p. 4142-4147 6 p. 6224644

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Barreling
Robots
Friction
Geometry
Wheels
2 Citations (Scopus)

Object classification in traffic scenes using multiple spatio-temporal features

Somasundaram, G., Morellas, V., Papanikolopoulos, N. P. & Bedros, S., Oct 5 2012, 2012 20th Mediterranean Conference on Control and Automation, MED 2012 - Conference Proceedings. p. 1536-1541 6 p. 6265857

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Classifiers
Bicycles
Optical flows
Computer vision
Availability
2 Citations (Scopus)

Object classification with efficient global self-similarity descriptors based on sparse representations

Somasundaram, G., Morellas, V. & Papanikolopoulos, N. P., Dec 1 2012, 2012 IEEE International Conference on Image Processing, ICIP 2012 - Proceedings. p. 2165-2168 4 p. 6467322

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Object recognition
Volatile organic compounds
Support vector machines
Redundancy
1 Citation (Scopus)

Pitfalls of publications: On the sensitive issue of plagiarism

Visser, L., Haidegger, T. & Papanikolopoulos, N. P., Dec 26 2012, In : IEEE Robotics and Automation Magazine. 19, 4, p. 85-87 3 p., 6377466.

Research output: Contribution to journalReview article

Copying
1 Citation (Scopus)

Reconstructing and analyzing periodic human motion from stationary monocular views

Ribnick, E., Sivalingam, R., Papanikolopoulos, N. P. & Daniilidis, K., Jul 1 2012, In : Computer Vision and Image Understanding. 116, 7, p. 815-826 12 p.

Research output: Contribution to journalArticle

Gait analysis
Cameras
Trajectories
10 Citations (Scopus)
Entropy
Cameras
Robots
Communication systems
Lasers
9 Citations (Scopus)

Robust sparse hashing

Cherian, A., Morellas, V. & Papanikolopoulos, N. P., Dec 1 2012, 2012 IEEE International Conference on Image Processing, ICIP 2012 - Proceedings. p. 2417-2420 4 p. 6467385

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Glossaries
Innovation
Mathematical transformations
73 Citations (Scopus)

Scalable active learning for multiclass image classification

Joshi, A. J., Porikli, F. & Papanikolopoulos, N. P., Oct 1 2012, In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 34, 11, p. 2259-2273 15 p., 6127880.

Research output: Contribution to journalArticle

Multi-class Classification
Active Learning
Image classification
Image Classification
Modality
6 Citations (Scopus)

Sparse representation of point trajectories for action classification

Sivalingam, R., Somasundaram, G., Bhatawadekar, V., Morellas, V. & Papanikolopoulos, N. P., Jan 1 2012, 2012 IEEE International Conference on Robotics and Automation, ICRA 2012. Institute of Electrical and Electronics Engineers Inc., p. 3601-3606 6 p. 6224777. (Proceedings - IEEE International Conference on Robotics and Automation).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Trajectories
Human computer interaction
Time series
Data acquisition
Sensors
2011
2 Citations (Scopus)

A dynamic sensor placement algorithm for dense sampling

Bhatawadekar, V., Fehr, D., Morellas, V. & Papanikolopoulos, N. P., Sep 13 2011, Fusion 2011 - 14th International Conference on Information Fusion. 5977613

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Sampling
Sensors
Collision avoidance
Robotics

A dynamic sensor placement algorithm for dense sampling

Bhatawadekar, V., Sivalingam, R. & Papanikolopoulos, N. P., Dec 29 2011, IROS'11 - 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems: Celebrating 50 Years of Robotics. p. 1167-1172 6 p. 6048576

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Sampling
Sensors
Collision avoidance
Robotics
1 Citation (Scopus)

A novel framework for annotating videos using text

Gali, P. K., Morellas, V. & Papanikolopoulos, N. P., Sep 8 2011, 2011 19th Mediterranean Conference on Control and Automation, MED 2011. p. 1403-1408 6 p. 5983193. (2011 19th Mediterranean Conference on Control and Automation, MED 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Video streaming
Health care
Printed circuit boards

Approximate nearest neighbors via dictionary learning

Cherian, A., Morellas, V. & Papanikolopoulos, N. P., Sep 26 2011, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering IX. Vol. 8058. 80581M

Research output: Chapter in Book/Report/Conference proceedingConference contribution

dictionaries
Glossaries
learning
Nearest Neighbor
Feature Vector

A probabilistic quality metric for camera placement in 3D reconstructions

Holec, E. & Papanikolopoulos, N. P., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 5899-5904 6 p. 5980520

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cameras
Planning
Statistical Models
9 Citations (Scopus)

Aquapod: Prototype design of an amphibious tumbling robot

Carlson, A. & Papanikolopoulos, N., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 4589-4594 6 p. 5979538

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Barreling
Robots
Buoyancy
Mobile robots
Lakes
18 Citations (Scopus)

A robust miniature robot design for land/air hybrid locomotion

Kossett, A. & Papanikolopoulos, N. P., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 4595-4600 6 p. 5979845

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Air
Rotors
2 Citations (Scopus)

Computer vision issues in the design of a scrub nurse robot

Agovic, A., Levine, J., Agovic, A. & Papanikolopoulos, N. P., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 2921-2926 6 p. 5980494

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer vision
Robots
Robotics
Costs
10 Citations (Scopus)

Denoising sparse noise via online dictionary learning

Cherian, A., Sra, S. & Papanikolopoulos, N. P., Aug 18 2011, 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings. p. 2060-2063 4 p. 5946730

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Glossaries
Image denoising
Mathematical transformations
17 Citations (Scopus)

Dictionary learning for robust background modeling

Sivalingam, R., D'Souza, A., Morellas, V., Papanikolopoulos, N. P., Bazakos, M. E. & Miezianko, R., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 4234-4239 6 p. 5979981

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Glossaries
Atoms
Singular value decomposition
Computer vision
Byproducts
14 Citations (Scopus)

Dirichlet process mixture models on symmetric positive definite matrices for appearance clustering in video surveillance applications

Cherian, A., Morellas, V., Papanikolopoulos, N. P. & Bedros, S. J., Jan 1 2011, 2011 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2011. IEEE Computer Society, p. 3417-3424 8 p. 5995723. (Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Clustering algorithms
Face recognition
Covariance matrix
Computer vision
Data acquisition
42 Citations (Scopus)

Efficient similarity search for covariance matrices via the Jensen-Bregman LogDet Divergence

Cherian, A., Sra, S., Banerjee, A. & Papanikolopoulos, N. P., Dec 1 2011, 2011 International Conference on Computer Vision, ICCV 2011. p. 2399-2406 8 p. 6126523. (Proceedings of the IEEE International Conference on Computer Vision).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Covariance matrix
Diffusion tensor imaging
Computer vision
Costs
Experiments
4 Citations (Scopus)

Enhancing the Randomized Hough Transform with k-means clustering to detect mutually-occluded ellipses

Zhou, T. & Papanikolopoulos, N. P., Sep 8 2011, 2011 19th Mediterranean Conference on Control and Automation, MED 2011. p. 327-332 6 p. 5983040. (2011 19th Mediterranean Conference on Control and Automation, MED 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hough transforms
1 Citation (Scopus)

Feasibility of intrafraction whole-body motion tracking for total marrow irradiation

Sharma, M., Santos, T. D., Papanikolopoulos, N. P. & Huia, S. K., May 1 2011, In : Journal of biomedical optics. 16, 5, 058002.

Research output: Contribution to journalArticle

optical tracking
markers
Irradiation
irradiation
breathing
5 Citations (Scopus)

Feature-based covariance matching for a moving target in multi-robot following

Min, H. J., Papanikolopoulos, N. P., Smith, C. E. & Morellas, V., Sep 8 2011, 2011 19th Mediterranean Conference on Control and Automation, MED 2011. p. 163-168 6 p. 5983102

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Cameras
Robot applications
Covariance matrix
Fourier transforms
7 Citations (Scopus)

Optimal image-based euclidean calibration of structured light systems in general scenes

Bird, N. & Papanikolopoulos, N. P., Oct 1 2011, In : IEEE Transactions on Automation Science and Engineering. 8, 4, p. 815-823 9 p., 5772037.

Research output: Contribution to journalArticle

Cameras
Calibration
Geometry
19 Citations (Scopus)

Positive definite dictionary learning for region covariances

Sivalingam, R., Boley, D. L., Morellas, V. & Papanikolopoulos, N. P., Dec 1 2011, 2011 International Conference on Computer Vision, ICCV 2011. p. 1013-1019 7 p. 6126346

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Glossaries
Computer vision
Image processing
Textures
Atoms

Recognition of traitors in distributed robotic teams

Bird, N. & Papanikolopoulos, N. P., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 4798-4803 6 p. 5980445

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robotics
Experiments
1 Citation (Scopus)

Rethinking surveillance - Toward an interactive security model

Schumacher, J., Salehi, S., Hadjiyanni, T. & Papanikolopoulos, N. P., Sep 8 2011, 2011 19th Mediterranean Conference on Control and Automation, MED 2011. p. 688-693 6 p. 5983195

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Moderators
Students
Industry
8 Citations (Scopus)

Robotic tumbling locomotion

Hemes, B., Canelon-Sanchez, D. J., Dancs, J. & Papanikolopoulos, N. P., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 5063-5069 7 p. 5980330

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Barreling
Robotics
Robots
Hardware
Mobile robots
11 Citations (Scopus)

The multi-robot coverage problem for optimal coordinated search with an unknown number of robots

Min, H. J. & Papanikolopoulos, N. P., Dec 1 2011, 2011 IEEE International Conference on Robotics and Automation, ICRA 2011. p. 2866-2871 6 p. 5979995

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Costs
2010
11 Citations (Scopus)

3D reconstruction of periodic motion from a single view

Ribnick, E. & Papanikolopoulos, N. P., Oct 1 2010, In : International Journal of Computer Vision. 90, 1, p. 28-44 17 p.

Research output: Contribution to journalArticle

Trajectories
Gait analysis
Cameras
Geometry
3 Citations (Scopus)

A strategy for improving observability with mobile robots

Drenner, A., Janssen, M. & Papanikolopoulos, N. P., Aug 26 2010, 2010 IEEE International Conference on Robotics and Automation, ICRA 2010. p. 420-425 6 p. 5509198

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Observability
Mobile robots
Cameras
Costs
Robotics
20 Citations (Scopus)

Breaking the interactive bottleneck in multi-class classification with active selection and binary feedback

Joshi, A. J., Porikli, F. & Papanikolopoulos, N. P., Aug 31 2010, 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, CVPR 2010. p. 2995-3002 8 p. 5540047

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Feedback
Labeling
Experiments
Problem-Based Learning
89 Citations (Scopus)

Clustering of vehicle trajectories

Atev, S., Miller, G. & Papanikolopoulos, N. P., Sep 1 2010, In : IEEE Transactions on Intelligent Transportation Systems. 11, 3, p. 647-657 11 p., 5462900.

Research output: Contribution to journalArticle

Trajectories
8 Citations (Scopus)

Design of an improved land/air miniature robot

Kossett, A., D'Sa, R., Purvey, J. & Papanikolopoulos, N. P., Aug 26 2010, 2010 IEEE International Conference on Robotics and Automation, ICRA 2010. p. 632-637 6 p. 5509453

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Air
Helicopter rotors
Wheels
Electronic equipment
6 Citations (Scopus)

Dictionary learning based object detection and counting in traffic scenes

Sivalingam, R., Somasundaram, G., Morellas, V., Papanikolopoulos, N. P., Lotfallah, O. & Park, Y., Dec 6 2010, ICDSC - 4th ACM/IEEE International Conference on Distributed Smart Cameras. p. 42-48 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Glossaries
Bicycles
Object recognition
Intrusion detection
Image resolution
7 Citations (Scopus)

Haptic interface design considerations for scrub nurse robots in microsurgery

Agovic, A., Levine, S. C., Papanikolopoulos, N. P. & Tewfik, A., Sep 29 2010, 18th Mediterranean Conference on Control and Automation, MED'10 - Conference Proceedings. p. 1573-1578 6 p. 5547823

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Haptic interfaces
Robots
Robotics
Grippers
Industrial robots
1 Citation (Scopus)

Human motion patterns from single camera cues for medical applications

Ribnick, E., Morellas, V. & Papanikolopoulos, N. P., Aug 26 2010, 2010 IEEE International Conference on Robotics and Automation, ICRA 2010. p. 5102-5107 6 p. 5509192. (Proceedings - IEEE International Conference on Robotics and Automation).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gait analysis
Medical applications
Cameras
7 Citations (Scopus)

Motion estimation of a miniature helicopter using a single onboard camera

Cherian, A., Andersh, J., Morellas, V., Mettler May, B. F. & Papanikolopoulos, N. P., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 4456-4461 6 p. 5530981

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Motion estimation
Helicopters
Cameras
Geometry
Sensors
11 Citations (Scopus)

Multi-class batch-mode active learning for image classification

Joshi, A. J., Porikli, F. & Papanikolopoulos, N. P., Aug 26 2010, 2010 IEEE International Conference on Robotics and Automation, ICRA 2010. p. 1873-1878 6 p. 5509293. (Proceedings - IEEE International Conference on Robotics and Automation).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image classification
Object recognition
Labeling
Redundancy
Robotics

Socializing surveillance: An interdisciplinary educational model

Hadjiyanni, T., Papanikolopoulos, N. P., Gopinath, A. & Willow, D., Sep 29 2010, 18th Mediterranean Conference on Control and Automation, MED'10 - Conference Proceedings. p. 179-184 6 p. 5547664. (18th Mediterranean Conference on Control and Automation, MED'10 - Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cameras
Computer science
Students
41 Citations (Scopus)

Tensor sparse coding for region covariances

Sivalingam, R., Boley, D. L., Morellas, V. & Papanikolopoulos, N. P., Nov 15 2010, Computer Vision, ECCV 2010 - 11th European Conference on Computer Vision, Proceedings. PART 4 ed. p. 722-735 14 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6314 LNCS, no. PART 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sparse Coding
Positive definite matrix
Tensors
Tensor
Sparse Representation