Publications 1999 2017

  • 21 h-Index
  • 63 Conference contribution
  • 18 Article
2017

Automated Online Exam Proctoring

Atoum, Y., Chen, L., Liu, A. X., Hsu, S. D. H. & Liu, X. Jul 1 2017 In : IEEE Transactions on Multimedia. 19, 7, p. 1609-1624 16 p., 7828141

Research output: Contribution to journalArticle

Education
Monitoring
Microphones
Scalability
Acoustics
1 Citations

On geometric features for skeleton-based action recognition using multilayer LSTM networks

Zhang, S., Liu, X. & Xiao, J. May 11 2017 Proceedings - 2017 IEEE Winter Conference on Applications of Computer Vision, WACV 2017. Institute of Electrical and Electronics Engineers Inc., p. 148-157 10 p. 7926607

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

Multilayers
Experiments

Pose-Invariant Face Alignment via CNN-Based Dense 3D Model Fitting

Jourabloo, A. & Liu, X. Apr 19 2017 In : International Journal of Computer Vision. p. 1-17 17 p.

Research output: Contribution to journalArticle

Face recognition
Computer vision
Cameras
Experiments
2016
6 Citations

Adaptive 3D face reconstruction from unconstrained photo collections

Roth, J., Tong, Y. & Liu, X. 2016 2016 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2016. IEEE Computer Society, Vol. 2016-January, p. 4197-4206 10 p.

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

Lighting

Energy-efficient aquatic environment monitoring using smartphone-based robots

Wang, Y., Tan, R., Xing, G., Wang, J., Tan, X. & Liu, X. Jul 1 2016 In : ACM Transactions on Sensor Networks. 12, 3, 25

Research output: Contribution to journalArticle

Smartphones
Image segmentation
Energy utilization
Robots
Monitoring
18 Citations

Face alignment across large poses: A 3D solution

Zhu, X., Lei, Z., Liu, X., Shi, H. & Li, S. Z. 2016 2016 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2016. IEEE Computer Society, Vol. 2016-January, p. 146-155 10 p.

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

Labeling
Pixels
Semantics
Experiments

Joint face alignment and 3D face reconstruction

Liu, F., Zeng, D., Zhao, Q. & Liu, X. 2016 Computer Vision - 14th European Conference, ECCV 2016, Proceedings. Springer Verlag, Vol. 9909 LNCS, p. 545-560 16 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9909 LNCS)

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

Landmarks
Adjustment
Alignment
Face recognition
Experiments
20 Citations

Large-pose face alignment via CNN-based dense 3D model fitting

Jourabloo, A. & Liu, X. 2016 2016 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2016. IEEE Computer Society, Vol. 2016-January, p. 4188-4196 9 p.

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

Face recognition
Computer vision
Cameras
Experiments
3 Citations

Monitoring aquatic debris using smartphone-based robots

Wang, Y., Tan, R., Xing, G., Wang, J., Tan, X., Liu, X. & Chang, X. Jun 1 2016 In : IEEE Transactions on Mobile Computing. 15, 6, p. 1412-1426 15 p., 7165664

Research output: Contribution to journalArticle

Debris
Scheduling algorithms
Monitoring
Smartphones
Robots
3 Citations

On developing and enhancing plant-level disease rating systems in real fields

Atoum, Y., Afridi, M. J., Liu, X., McGrath, J. M. & Hanson, L. E. May 1 2016 In : Pattern Recognition. 53, p. 287-299 13 p.

Research output: Contribution to journalArticle

Sugar beets
Labels
Sugar industry
Computer vision
Lighting
13 Citations

Pose-invariant 3D face alignment

Jourabloo, A. & Liu, X. Feb 17 2016 Proceedings - 2015 IEEE International Conference on Computer Vision, ICCV 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 11-18-December-2015, p. 3694-3702 9 p. 7410778

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

Visibility
Cameras
Experiments

Temporally robust global motion compensation by keypoint-based congealing

Safdarnejad, S. M., Atoum, Y. & Liu, X. 2016 Computer Vision - 14th European Conference, ECCV 2016, Proceedings. Springer Verlag, Vol. 9910 LNCS, p. 101-119 19 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9910 LNCS)

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

Motion compensation
Motion
Cameras
Camera
Motion estimation
2015
6 Citations

Attribute preserved face de-identification

Jourabloo, A., Yin, X. & Liu, X. Jun 29 2015 Proceedings of 2015 International Conference on Biometrics, ICB 2015. Institute of Electrical and Electronics Engineers Inc., p. 278-285 8 p. 7139096

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

Face recognition
Identification (control systems)
8 Citations

Automatic feeding control for dense aquaculture fish tanks

Atoum, Y., Srivastava, S. & Liu, X. Aug 1 2015 In : IEEE Signal Processing Letters. 22, 8, p. 1089-1093 5 p., 6997987

Research output: Contribution to journalArticle

Fish
Automatic control
Aquaculture
Optimal rates
Excess
2 Citations

Automatic in vivo cell detection in MRI

Afridi, M. J., Liu, X., Shapiro, E. & Ross, A. 2015 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag, Vol. 9351, p. 391-399 9 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9351)

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

Cell
Magnetic resonance imaging
Monitoring
Classifier ensemble
Bayesian classifier
44 Citations

Demographic estimation from face images: Human vs. machine performance

Han, H., Otto, C., Liu, X. & Jain, A. K. Jun 1 2015 In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 37, 6, p. 1148-1161 14 p., 6920084

Research output: Contribution to journalArticle

Age
Person
Estimate
Group classification
Human perception
9 Citations

Investigating the discriminative power of keystroke sound

Roth, J., Liu, X., Ross, A. & Metaxas, D. Feb 1 2015 In : IEEE Transactions on Information Forensics and Security. 10, 2, p. 333-345 13 p., 6966780

Research output: Contribution to journalArticle

Authentication
Experiments
14 Citations

Leaf segmentation in plant phenotyping: a collation study

Scharr, H., Minervini, M., French, A. P., Klukas, C., Kramer, D. M., Liu, X., Luengo, I., Pape, J. M., Polder, G., Vukadinovic, D., Yin, X. & Tsaftaris, S. A. Dec 12 2015 In : Machine Vision and Applications. p. 1-22 22 p.

Research output: Contribution to journalArticle

Computer vision
Tobacco
Agriculture
Imaging techniques
Experiments
1 Citations

Learning-based ballistic breech face impression image matching

Roth, J., Carriveau, A., Liu, X. & Jain, A. K. Dec 16 2015 2015 IEEE 7th International Conference on Biometrics Theory, Applications and Systems, BTAS 2015. Institute of Electrical and Electronics Engineers Inc., 7358774

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

Ballistics
Cross-correlation function
Image matching
Polar coordinates
Supervised learning
3 Citations

Multi-modality imagery database for plant phenotyping

Cruz, J. A., Yin, X., Liu, X., Imran, S. M., Morris, D. D., Kramer, D. M. & Chen, J. Nov 28 2015 In : Machine Vision and Applications. p. 1-15 15 p.

Research output: Contribution to journalArticle

Image analysis
Imaging techniques
Crops
Sensors
Labeling
1 Citations

On the exploration of joint attribute learning for person re-identification

Roth, J. & Liu, X. 2015 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag, Vol. 9003, p. 673-688 16 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9003)

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

Attribute
Classifiers
Learning algorithms
Person
Classifier
1 Citations

Samba: A smartphone-based robot system for energy-efficient aquatic environment monitoring

Wang, Y., Tan, R., Xing, G., Wang, J., Tan, X. & Liu, X. Apr 13 2015 IPSN 2015 - Proceedings of the 14th International Symposium on Information Processing in Sensor Networks (Part of CPS Week). Association for Computing Machinery, Inc, p. 262-273 12 p.

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

Smartphones
Image segmentation
Energy utilization
Robots
Monitoring
3 Citations

Sports Videos in the Wild (SVW): A video dataset for sports analysis

Safdarnejad, S. M., Liu, X., Udpa, L., Andrus, B., Wood, J. & Craven, D. Jul 17 2015 2015 11th IEEE International Conference and Workshops on Automatic Face and Gesture Recognition, FG 2015. Institute of Electrical and Electronics Engineers Inc., 7163105

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

Sports
Smartphones
Broadcasting
Application programs
Computer vision
13 Citations

Unconstrained 3D face reconstruction

Roth, J., Tong, Y. & Liu, X. Oct 14 2015 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition. IEEE Computer Society, Vol. 07-12-June-2015, p. 2606-2615 10 p. 7298876

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

Surface reconstruction
Metadata
Computer vision
Textures
Lighting
2014
4 Citations

An automated system for plant-level disease rating in real fields

Afridi, M. J., Liu, X. & McGrath, J. M. Dec 4 2014 Proceedings - International Conference on Pattern Recognition. Institute of Electrical and Electronics Engineers Inc., p. 148-153 6 p. 6976746

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

Pixels
Sugar beets
Sugar (sucrose)
Computer vision
Lighting
5 Citations

Aquatic debris monitoring using smartphone-based robotic sensors

Wang, Y., Tan, R., Xing, G., Wang, J., Tan, X., Liu, X. & Chang, X. 2014 IPSN 2014 - Proceedings of the 13th International Symposium on Information Processing in Sensor Networks (Part of CPS Week). IEEE Computer Society, p. 13-24 12 p. 6835794

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

Debris
Scheduling algorithms
Monitoring
Smartphones
Robotics
2 Citations

Genre categorization of amateur sports videos in the wild

Safdarnejad, S. M., Liu, X. & Udpa, L. Jan 28 2014 2014 IEEE International Conference on Image Processing, ICIP 2014. Institute of Electrical and Electronics Engineers Inc., p. 1001-1005 5 p. 7025201

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

Sports
Trajectories
Broadcasting
Mobile phones
Linings
3 Citations

Image segmentation of mesenchymal stem cells in diverse culturing conditions

Afridi, M. J., Liu, C., Chan, C., Baek, S. & Liu, X. 2014 2014 IEEE Winter Conference on Applications of Computer Vision, WACV 2014. IEEE Computer Society, p. 516-523 8 p. 6836058

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

Stem cells
Image segmentation
Tissue engineering
Image analysis
7 Citations

Multi-leaf alignment from fluorescence plant images

Yin, X., Liu, X., Chen, J. & Kramer, D. M. 2014 2014 IEEE Winter Conference on Applications of Computer Vision, WACV 2014. IEEE Computer Society, p. 437-444 8 p. 6836067

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

Masks
Fluorescence
8 Citations

Multi-leaf tracking from fluorescence plant videos

Yin, X., Liu, X., Chen, J. & Kramer, D. M. Jan 28 2014 2014 IEEE International Conference on Image Processing, ICIP 2014. Institute of Electrical and Electronics Engineers Inc., p. 408-412 5 p. 7025081

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

Fluorescence
21 Citations

On continuous user authentication via typing behavior

Roth, J., Liu, X. & Metaxas, D. Oct 1 2014 In : IEEE Transactions on Image Processing. 23, 10, p. 4611-4614 4 p., 6879297

Research output: Contribution to journalArticle

Biometrics
Authentication
End effectors
Computer vision
1 Citations

On hair recognition in the wild by machine

Roth, J. & Liu, X. 2014 Proceedings of the National Conference on Artificial Intelligence. AI Access Foundation, Vol. 4, p. 2824-2830 7 p.

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

Adaptive boosting
Face recognition
Classifiers
Fusion reactions
Textures
6 Citations

Transfer learning with one-class data

Chen, J. & Liu, X. Feb 1 2014 In : Pattern Recognition Letters. 37, 1, p. 32-40 9 p.

Research output: Contribution to journalArticle

Learning algorithms
Feature extraction
Classifiers
Testing
Experiments
2013
25 Citations

Adaptive unsupervised multi-view feature selection for visual concept recognition

Feng, Y., Xiao, J., Zhuang, Y. & Liu, X. 2013 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). PART 1 ed. Vol. 7724 LNCS, p. 343-357 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7724 LNCS, no. PART 1)

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

Feature selection
Feature extraction
Labels
Graph in graph theory
Action recognition
12 Citations

Biometric authentication via keystroke sound

Roth, J., Liu, X., Ross, A. & Metaxas, D. 2013 Proceedings - 2013 International Conference on Biometrics, ICB 2013. IEEE Computer Society, 6613015

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

Biometric Identification
Privacy
Dermatoglyphics
Costs and Cost Analysis
5 Citations

Boosting with side information

Chen, J., Liu, X. & Lyu, S. 2013 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). PART 1 ed. Vol. 7724 LNCS, p. 563-577 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7724 LNCS, no. PART 1)

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

Classifiers
Side information
Adaptive boosting
Classifier
Image resolution
28 Citations

Learning person-specific models for facial expression and action unit recognition

Chen, J., Liu, X., Tu, P. & Aragones, A. 2013 In : Pattern Recognition Letters. 34, 15, p. 1964-1970 7 p.

Research output: Contribution to journalArticle

Labeling
Learning systems
Experiments
2012
9 Citations

Group context learning for event recognition

Zhang, Y., Ge, W., Chang, M. C. & Liu, X. 2012 Proceedings of IEEE Workshop on Applications of Computer Vision. p. 249-255 7 p. 6163009

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

Target tracking
Support vector machines
Cameras
Trajectories
1 Citations

Image congealing via efficient feature selection

Xue, Y. & Liu, X. 2012 Proceedings of IEEE Workshop on Applications of Computer Vision. p. 185-192 8 p. 6163048

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

Feature extraction
Medical applications
Redundancy
Experiments
3 Citations

Learning-based scan plane identification from fetal head ultrasound images

Liu, X., Annangi, P., Gupta, M., Yu, B., Padfield, D., Banerjee, J. & Krishnan, K. 2012 Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8320, 83200A

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

thalamus
ellipses
learning
probes
Aerobiosis
10 Citations

Person-specific expression recognition with transfer learning

Chen, J., Liu, X., Tu, P. & Aragones, A. 2012 Proceedings - International Conference on Image Processing, ICIP. p. 2621-2624 4 p. 6467436

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

Labeling
Learning systems
6 Citations

Semi-supervised facial landmark annotation

Tong, Y., Liu, X., Wheeler, F. W. & Tu, P. H. Aug 2012 In : Computer Vision and Image Understanding. 116, 8, p. 922-935 14 p.

Research output: Contribution to journalArticle

Computer vision
Personnel
Experiments
Object detection
49 Citations

Spatio-temporal phrases for activity recognition

Zhang, Y., Liu, X., Chang, M. C., Ge, W. & Chen, T. 2012 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). PART 3 ed. Vol. 7574 LNCS, p. 707-721 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7574 LNCS, no. PART 3)

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

Local features
Computational complexity
Cameras
Experiments
Person
2011
2 Citations

Automatic surveillance video matting using a shape prior

Yu, T., Liu, X., Lim, S., Krahnstoever, N. O. & Tu, P. H. 2011 Proceedings of the IEEE International Conference on Computer Vision. p. 1761-1768 8 p. 6130462

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

Detectors
Cost functions

LPSM: Fitting shape model by linear programming

Tu, J., Laflen, B., Liu, X., Bello, M., Rittscher, J. & Tu, P. 2011 2011 IEEE International Conference on Automatic Face and Gesture Recognition and Workshops, FG 2011. p. 252-258 7 p. 5771406

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

Linear programming
Experiments
Cost functions
Internet
Local search (optimization)
3 Citations

Optimal gradient pursuit for face alignment

Liu, X. 2011 2011 IEEE International Conference on Automatic Face and Gesture Recognition and Workshops, FG 2011. p. 245-251 7 p. 5771405

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

Experiments
2010
1 Citations

Facial contour labeling via congealing

Liu, X., Tong, Y., Wheeler, F. W. & Tu, P. H. 2010 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). PART 1 ed. Vol. 6311 LNCS, p. 354-368 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 6311 LNCS, no. PART 1)

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

Labeling
Ensemble
Curve
Labels
Parametric curves
10 Citations

Improving biometric identification through quality-based face and fingerprint biometric fusion

Tong, Y., Wheeler, F. W. & Liu, X. 2010 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Workshops, CVPRW 2010. p. 53-60 8 p. 5543233

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

Biometrics
Information fusion
Bayesian networks
Image quality
Experiments

Site-adaptive face recognition

Tu, J., Liu, X. & Tu, P. 2010 IEEE 4th International Conference on Biometrics: Theory, Applications and Systems, BTAS 2010. 5634482

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

Face recognition
Imaging techniques
Imaging
Recognition algorithm
Adaptive boosting
32 Citations

Video-based face model fitting using Adaptive Active Appearance Model

Liu, X. Jul 2010 In : Image and Vision Computing. 28, 7, p. 1162-1172 11 p.

Research output: Contribution to journalArticle

Computer vision