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Research Output 1990 2019

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Article
2019

A topology-based descriptor for 3D point cloud modeling: Theory and experiments

Beksi, W. J. & Papanikolopoulos, N. P., Aug 1 2019, In : Image and Vision Computing. 88, p. 84-95 12 p.

Research output: Contribution to journalArticle

Tuning
Topology
Sensors
Processing
Experiments
2018
Health
Monitoring
Sensor data fusion
Hinges
Screening
2017

Use of Computer Vision Tools to Identify Behavioral Markers of Pediatric Obsessive-Compulsive Disorder: A Pilot Study

Bernstein, G. A., Hadjiyanni, T., Cullen, K. R., Robinson, J. W., Harris, E. C., Young, A. D., Fasching, J., Walczak, N., Lee, S. S., Morellas, V. & Papanikolopoulos, N. P., Mar 1 2017, In : Journal of child and adolescent psychopharmacology. 27, 2, p. 140-147 8 p.

Research output: Contribution to journalArticle

Obsessive-Compulsive Disorder
Pediatrics
Hand Disinfection
Psychopathology
Research
2016
12 Citations (Scopus)

Bayesian Nonparametric Clustering for Positive Definite Matrices

Cherian, A., Morellas, V. & Papanikolopoulos, N. P., May 1 2016, In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 38, 5, p. 862-874 13 p., 7159063.

Research output: Contribution to journalArticle

Bayesian Nonparametrics
Positive definite matrix
Symmetric Positive Definite Matrix
Dirichlet Process
Clustering
11 Citations (Scopus)

Covariance based point cloud descriptors for object detection and recognition

Fehr, D., Beksi, W. J., Zermas, D. & Papanikolopoulos, N. P., Jan 1 2016, In : Computer Vision and Image Understanding. 142, p. 80-93 14 p.

Research output: Contribution to journalArticle

Object recognition
Sensors
Computer vision
Image processing
Processing
2015
3 Citations (Scopus)

A vision based ensemble approach to velocity estimation for miniature rotorcraft

Andersh, J., Cherian, A., Mettler May, B. F. & Papanikolopoulos, N. P., Aug 23 2015, In : Autonomous Robots. 39, 2, p. 123-138 16 p.

Research output: Contribution to journalArticle

Global positioning system
Flight dynamics
Motion estimation
State estimation
Remote control
12 Citations (Scopus)

Object classification using dictionary learning and RGB-D covariance descriptors

Beksi, W. J. & Papanikolopoulos, N. P., Jan 1 2015, In : Proceedings - IEEE International Conference on Robotics and Automation. 2015-June, June, p. 1880-1885 6 p., 7139443.

Research output: Contribution to journalArticle

Glossaries
Robots
Experiments
5 Citations (Scopus)

Tensor Dictionary Learning for Positive Definite Matrices

Sivalingam, R., Boley, D. L., Morellas, V. & Papanikolopoulos, N. P., Nov 1 2015, In : IEEE Transactions on Image Processing. 24, 11, p. 4592-4601 10 p., 7117399.

Research output: Contribution to journalArticle

Glossaries
Tensors
Learning
Computer vision
Cluster Analysis
2014
27 Citations (Scopus)

Action recognition using global spatio-temporal features derived from sparse representations

Somasundaram, G., Cherian, A., Morellas, V. & Papanikolopoulos, N. P., Jan 1 2014, In : Computer Vision and Image Understanding. 123, p. 1-13 13 p.

Research output: Contribution to journalArticle

Glossaries
Computer vision
Image processing
Detectors
Experiments
12 Citations (Scopus)

Efficient nearest neighbors via robust sparse hashing

Cherian, A., Sra, S., Morellas, V. & Papanikolopoulos, N. P., Jan 1 2014, In : IEEE Transactions on Image Processing. 23, 8, p. 3646-3655 10 p., 6824781.

Research output: Contribution to journalArticle

Glossaries
18 Citations (Scopus)

Tensor sparse coding for positive definite matrices

Sivalingam, R., Boley, D. L., Morellas, V. & Papanikolopoulos, N. P., Mar 1 2014, In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 36, 3, p. 592-605 14 p., 6574845.

Research output: Contribution to journalArticle

Sparse Coding
Positive definite matrix
Tensors
Vectorization
Tensor
2013
10 Citations (Scopus)

Classification and counting of composite objects in traffic scenes using global and local image analysis

Somasundaram, G., Sivalingam, R., Morellas, V. & Papanikolopoulos, N. P., Jan 1 2013, In : IEEE Transactions on Intelligent Transportation Systems. 14, 1, p. 69-81 13 p., 6291788.

Research output: Contribution to journalArticle

Image analysis
Classifiers
Bicycles
Object recognition
Composite materials
9 Citations (Scopus)

Coordination and longevity in multi-robot teams involving miniature robots

Drenner, A., Janssen, M., Kottas, A., Kossett, A., Carlson, C., Lloyd, R. & Papanikolopoulos, N., Apr 23 2013, In : Journal of Intelligent and Robotic Systems: Theory and Applications. 72, 2, p. 263-284 22 p.

Research output: Contribution to journalArticle

Robotics
Robots
Scalability
Hardware
Monitoring
79 Citations (Scopus)
Bregman Divergence
Similarity Search
Covariance matrix
Computer vision
Metric
2012
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
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
2011
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
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
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
88 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
2009
25 Citations (Scopus)

Estimating 3D positions and velocities of projectiles from monocular views

Ribnick, E., Atev, S. & Papanikolopoulos, N. P., Apr 23 2009, In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 31, 5, p. 938-944 7 p.

Research output: Contribution to journalArticle

Projectile
Projectiles
Local Optimization
Motion
Nonlinear Optimization
9 Citations (Scopus)

Human motion recognition using support vector machines

Cao, D., Masoud, O. T., Boley, D. L. & Papanikolopoulos, N. P., Oct 1 2009, In : Computer Vision and Image Understanding. 113, 10, p. 1064-1075 12 p.

Research output: Contribution to journalArticle

Support vector machines
Labels
Classifiers
16 Citations (Scopus)

Learning to recognize video-based spatiotemporal events

Veeraraghavan, H. & Papanikolopoulos, N. P., Dec 1 2009, In : IEEE Transactions on Intelligent Transportation Systems. 10, 4, p. 628-638 11 p., 5166486.

Research output: Contribution to journalArticle

Context free grammars
Learning algorithms
Monitoring

SU‐FF‐J‐116: On the Development of Intra‐Fraction Whole Body Motion Tracking During Total Body Irradiation

Sharma, M., Hui, S. K., Bird, N., Dos Santos, T. & Papanikolopoulos, N. P., Jan 1 2009, In : Medical Physics. 36, 6, 1 p.

Research output: Contribution to journalArticle

Whole-Body Irradiation
Optical Devices
Patient Identification Systems
Bone Marrow
Technology
78 Citations (Scopus)

View-independent human motion classification using image-based reconstruction

Bodor, R., Drenner, A., Fehr, D., Masoud, O. & Papanikolopoulos, N., Jul 2 2009, In : Image and Vision Computing. 27, 8, p. 1194-1206 13 p.

Research output: Contribution to journalArticle

Image classification
Cameras
Classifiers
2008
107 Citations (Scopus)

Estimating pedestrian counts in groups

Kilambi, P., Ribnick, E., Joshi, A. J., Masoud, O. & Papanikolopoulos, N. P., Apr 1 2008, In : Computer Vision and Image Understanding. 110, 1, p. 43-59 17 p.

Research output: Contribution to journalArticle

Cameras
Calibration
Monitoring
1 Citation (Scopus)

EvalWare: Signal Processing for Robotics

Papanikolopoulos, N. P., Jan 1 2008, In : IEEE Signal Processing Magazine. 25, 1, p. 154-157 4 p.

Research output: Contribution to journalArticle

Signal Processing
Robotics
Signal processing
23 Citations (Scopus)

Implicit cooperation strategies for multi-robot search of unknown areas

Anderson, M. & Papanikolopoulos, N. P., Dec 1 2008, In : Journal of Intelligent and Robotic Systems: Theory and Applications. 53, 4, p. 381-397 17 p.

Research output: Contribution to journalArticle

Robots
Bandwidth
Communication
Sensors
Experiments
74 Citations (Scopus)

Learning to detect moving shadows in dynamic environments

Joshi, A. J. & Papanikolopoulos, N. P., Oct 9 2008, In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 30, 11, p. 2055-2063 9 p.

Research output: Contribution to journalArticle

Dynamic Environment
Co-training
Supervised learning
Probability distributions
Support vector machines
59 Citations (Scopus)

Multi-camera human activity monitoring

Fiore, L., Fehr, D., Bodor, R., Drenner, A., Somasundaram, G. & Papanikolopoulos, N. P., May 1 2008, In : Journal of Intelligent and Robotic Systems: Theory and Applications. 52, 1, p. 5-43 39 p.

Research output: Contribution to journalArticle

Cameras
Monitoring

Robotic scrub nurse for otolaryngology

Agovic, A., Levine, S. C., Papanikolopoulos, N. P. & Tewfik, A., Jun 1 2008, In : Journal of Medical Devices, Transactions of the ASME. 2, 2, p. 1 1 p.

Research output: Contribution to journalArticle

Otolaryngology
Robotics
Nurses

Vision-based patient body tracking in helical tomotherapy

Bird, N., Santos, T. D., Hui, S. K. & Papanikolopoulos, N. P., Jun 1 2008, In : Journal of Medical Devices, Transactions of the ASME. 2, 2, p. 1 1 p.

Research output: Contribution to journalArticle

Patient Identification Systems
Intensity-Modulated Radiotherapy
2007
25 Citations (Scopus)

Classifiers for driver activity monitoring

Veeraraghavan, H., Bird, N., Atev, S. & Papanikolopoulos, N. P., Jan 1 2007, In : Transportation Research Part C: Emerging Technologies. 15, 1, p. 51-67 17 p.

Research output: Contribution to journalArticle

Classifiers
driver
monitoring
Monitoring
Automobiles
54 Citations (Scopus)

Optimal camera placement for automated surveillance Tasks

Bodor, R., Drenner, A., Schrater, P. R. & Papanikolopoulos, N. P., Nov 1 2007, In : Journal of Intelligent and Robotic Systems: Theory and Applications. 50, 3, p. 257-295 39 p.

Research output: Contribution to journalArticle

Cameras
Observability
Robots
Image resolution
Inspection
9 Citations (Scopus)

Using geometric primitives to calibrate traffic scenes

Masoud, O. & Papanikolopoulos, N. P., Jan 1 2007, In : Transportation Research Part C: Emerging Technologies. 15, 6, p. 361-379 19 p.

Research output: Contribution to journalArticle

Cameras
traffic
Calibration
redundancy
Pole
4 Citations (Scopus)

Using robots to raise interest in technology among underrepresented groups

Cannon, K., Lapoint, M. A., Bird, N., Panciera, K., Veeraraghavan, H., Papanikolopoulos, N. P. & Gini, M. L., Dec 1 2007, In : IEEE Robotics and Automation Magazine. 14, 2, p. 73-81 9 p.

Research output: Contribution to journalArticle

Robots
Students
Robotics
Hardware
2006
44 Citations (Scopus)

Kinematic motion model for jumping scout robots

Stoeter, S. A. & Papanikolopoulos, N. P., Apr 1 2006, In : IEEE Transactions on Robotics. 22, 2, p. 398-403 6 p.

Research output: Contribution to journalArticle

Kinematics
Robots
Winches
Cables
31 Citations (Scopus)

Robust target detection and tracking through integration of motion, color, and geometry

Veeraraghavan, H., Schrater, P. R. & Papanikolopoulos, N. P., Aug 1 2006, In : Computer Vision and Image Understanding. 103, 2, p. 121-138 18 p.

Research output: Contribution to journalArticle

Image compression
Target tracking
Computer vision
Navigation
Robotics
15 Citations (Scopus)

Using virtual pheromones and cameras for dispersing a team of multiple miniature robots

Pearce, J. L., Powers, B., Hess, C., Rybski, P. E., Stoeter, S. A. & Papanikolopoulos, N. P., Apr 1 2006, In : Journal of Intelligent and Robotic Systems: Theory and Applications. 45, 4, p. 307-321 15 p.

Research output: Contribution to journalArticle

Cameras
Robots
Disasters
Robotics
Visual servoing
2005
52 Citations (Scopus)

Autonomous stair-climbing with miniature jumping robots

Stoeter, S. A. & Papanikolopoulos, N. P., Apr 1 2005, In : IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics. 35, 2, p. 313-325 13 p.

Research output: Contribution to journalArticle

Stairs
Robots
Mobile robots
Remote control
Sensors
94 Citations (Scopus)

A vision-based approach to collision prediction at traffic intersections

Atev, S., Arumugam, H., Masoud, O., Janardan, R. & Papanikolopoulos, N. P., Dec 1 2005, In : IEEE Transactions on Intelligent Transportation Systems. 6, 4, p. 416-423 8 p.

Research output: Contribution to journalArticle

Alarm systems
Monitoring

Deriving occlusions in static scenes from observations of interactions with a moving figure

Jackson, B., Bodor, R. & Papanikolopoulos, N. P., Dec 19 2005, In : Advanced Robotics. 19, 10 SPEC. ISS., p. 1043-1058 16 p.

Research output: Contribution to journalArticle

Computer vision
Cameras
100 Citations (Scopus)

Detection of loitering individuals in public transportation areas

Bird, N. D., Masoud, O., Papanikolopoulos, N. P. & Isaacs, A., Jun 1 2005, In : IEEE Transactions on Intelligent Transportation Systems. 6, 2, p. 167-177 11 p.

Research output: Contribution to journalArticle

Color
Biometrics
Cameras
Experiments
27 Citations (Scopus)

Tracking all traffic: Computer vision algorithms for monitoring vehicles individuals, and crowds

Maurin, B., Masoud, O. & Papanikolopoulos, N. P., Mar 1 2005, In : IEEE Robotics and Automation Magazine. 12, 1, p. 29-36 8 p.

Research output: Contribution to journalArticle

Optical flows
Traffic control
Computer vision
Monitoring
2004
3 Citations (Scopus)

Closed dynamic contour models that split and merge

Stoeter, S. A. & Papanikolopoulos, N. P., Jul 5 2004, In : Proceedings - IEEE International Conference on Robotics and Automation. 2004, 4, p. 3883-3888 6 p.

Research output: Contribution to journalArticle

Electric lamps
Seed
21 Citations (Scopus)
Telecommunication traffic
Extended Kalman filters
Computer vision
Cameras
Color
16 Citations (Scopus)

Human activities monitoring at bus stops

Gasser, G., Bird, N., Masoud, O. & Papanikolopoulos, N. P., Jul 5 2004, In : Proceedings - IEEE International Conference on Robotics and Automation. 2004, 1, p. 90-95 6 p.

Research output: Contribution to journalArticle

Monitoring
Color
16 Citations (Scopus)

Increasing the Scout's effectiveness through local sensing and ruggedization

Drenner, A., LaPoint, M. A., Burt, I., Cannon, K., Hays, C., Kottas, A. D. & Papanikolopoulos, N. P., Jul 5 2004, In : Proceedings - IEEE International Conference on Robotics and Automation. 2004, 2, p. 1406-1411 6 p.

Research output: Contribution to journalArticle

Robots
Durability
Communication
Processing
Experiments
4 Citations (Scopus)

Mosaicking images: Panoramic imaging for miniature robots

Dos Santos, C. C., Stoeter, S. A., Rybski, P. E. & Papanikolopoulos, N. P., Dec 1 2004, In : IEEE Robotics and Automation Magazine. 11, 4, p. 62-68 7 p.

Research output: Contribution to journalArticle

Merging
Robots
Imaging techniques
Linux