Publications 1999 2017

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

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

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
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
2015
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
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
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
2014
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
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
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
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
2010
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
2009
54 Citations

Discriminative face alignment

Liu, X. 2009 In : IEEE Transactions on Pattern Analysis and Machine Intelligence. 31, 11, p. 1941-1954 14 p.

Research output: Contribution to journalArticle

Alignment
Model
Active appearance models
Landmarks
Classifier
2003
48 Citations

Eigenspace updating for non-stationary process and its application to face recognition

Liu, X., Chen, T. & Thornton, S. M. Sep 2003 In : Pattern Recognition. 36, 9, p. 1945-1959 15 p.

Research output: Contribution to journalArticle

Face recognition
Random processes
Lighting
Statistics
76 Citations

Face authentication for multiple subjects using eigenflow

Liu, X., Chen, T. & Kumar, B. V. K. V. Feb 2003 In : Pattern Recognition. 36, 2, p. 313-328 16 p.

Research output: Contribution to journalArticle

Optical flows
Authentication
Discriminant analysis
Principal component analysis