Co-Director of the Lab for Perception, Action and Cognition (LPAC).
Associate Professor of Computer Science and Engineering and Electrical Engineering, College of Engineering, Penn State University
Curved Glide-Reflection Symmetry
Detection
Seungkyu Lee and Yanxi Liu
The IEEE Transaction on Pattern Analysis and Machine
Intelligence (TPAMI), February 2012
Volume 34, Number 2, Pages 266-278
[PDF]
[Project
Page]
Statistical Asymmetry-based Brain Tumor Segmentation from 3D MR
Images
Chenping Yu, Guilherme C. S. Ruppert, Dan T.
D. Nguyen, Alexandre X. Falcao,
and Yanxi Liu.
5th international joint conference on
biomedical engineering systems and technologies, 2012.
[PDF]
Teaching:
Pattern Recognition: Principles and Applications
Book: Pattern Recognition and Machine Learning by
Christopher M. Bishop
CSE 583/EE 552 of Spring
2012
Location: 222 IST
Time: Tuesdays and Thursdays from 2:30-3:45 PM.
Service:
Chair of CVPR
2012 (Computer Vision and Pattern Recognition) workshop on “Symmetry
Detection from Real World Images”, June 2012. Website will be up shortly. Website to CVPR 2011 NSF “Symmetry Detection” competition.
Workshop co-Chair for the 11th Asian
Conference on Computer Vision ACCV 2012
-- New Course (Fall 2011): Computational
Regularity, CSE 598G
-- Radiological Society of
Supervised Machine
Learning for Brain Tumor Detection in Structural MRI
Koshy, Yu, Nguyen (MD), Kashyap, Collins, Liu
·
Curved Reflection
Symmetry Detection with Self-Validation
Jingchen Liu and Yanxi Liu
·
Image
De-fencing Revisited
·
Translation-Symmetry-based
Perceptual Grouping with Applications to Urban Scenes
Minwoo Park and Kyle Brocklehurst
and Robert T. Collins and Yanxi Liu
-- CVPR 2010 papers
accepted:
o
Multi-Target
Tracking of Time-varying Spatial Patterns by Jingchen Liu
and Yanxi Liu
o
Data
Driven Mean-Shift Belief Propagation For non-Gaussian MRFs by
-- Research Seminar, Chinese University of Hong Kong, University
of Science and Technology, Hong Kong (February, 2010)
The PSU Near-Regular Texture
Database is formally released! You are invited to visualize, download and
submit photos containing regular, near-regular and irregular textures!
Edited book (LNCS, Springer) on
"Computer
Vision for Biomedical Image Applications: Current Techniques and Future
Trends" is available! If you are interested in obtaining a copy,
contact yanxi!
Invited
Speaker for Content-based
Image retrieval for Biomedical Image Archives (MICCAI 2007)
Selected Recent Publication
2010
A SURVEY
PAPER: Computational Symmetry in Computer
Vision and Computer Graphics
Yanxi Liu and Hagit Hel-Or and Craig S. Kaplan and
Luc Van Gool
Foundations and Trends® in Computer Graphics and Vision 2010
Volume 5
Number 1-2
Pages: 1- 195
[PDF]
[Project Page]
Skewed Rotation Symmetry Group Detection
Seungkyu Lee and Yanxi Liu
Pattern Analysis and Machine Intelligence (PAMI) 2010
Volume 32
Number 9
Pages 1659 - 1672
[PDF]
Translational Symmetry-based Perceptual
Grouping with Applications to Urban Scenes
Minwoo Park and Kyle Brocklehurst
and Robert T. Collins and Yanxi Liu
Asian Conference on Computer Vision (ACCV) 2010
[PDF]
Curved Reflection Symmetry Detection with Self-validation
Jingchen Liu and Yanxi Liu
Asian Conference on Computer Vision (ACCV) 2010
[PDF]
[Project
Page]
Image De-fencing Revisited
Asian Conference on Computer Vision (ACCV) 2010
[PDF]
Multi-Target Tracking of Time-Varying Spatial Patterns
Jingchen Liu and Yanxi Liu
Computer Vision and Pattern Recognition (CVPR) 2010
Pages 1-8
[PDF]
[Project
Page]
[Video]
Data
Driven Mean-Shift Belief Propagation For non-Gaussian MRFs
Minwoo Park and Somesh
Kashyap and Robert T. Collins and Yanxi Liu
Computer Vision and Pattern Recognition (CVPR) 2010
Pages 1-8
[PDF]
[Project
Page]
2009
Deformed Lattice Detection in Real-World Images using
Mean-Shift Belief Propagation M. Park, K. Brocklehurst,
R. T. Collins, and Yanxi Liu. IEEE TPAMI.
Curved Glide-Reflection Symmetry Detection S. Lee and Y.
Liu, CVPR 2009 oral presentation.2008
Deformed Lattice
Detection via Mean-Shift Belief Propagation
M. Park, R. Collins, and Y. Liu
European Conference on Computer Vision (ECCV), October, 2008.
[PDF] [Project Page]
Seungkyu Lee, Robert T. Collins and Yanxi Liu, "Rotation Symmetry Group Detection
Via Frequency Analysis of Frieze-Expansions," Computer Vision and Pattern
Recognition Conference (CVPR '08)
[PDF] [Project Page]
Yanxi
Liu, Tamara Belkina, James H. Hays, and Roberto Lublinerman, "Image De-fencing," Computer
Vision and Pattern Recognition Conference (CVPR '08)
[PDF] [Project Page]
Minwoo Park, Seungkyu Lee, Po-Chun Chen, Somesh Kashyap, Asad A. Butt and Yanxi Liu, "Performance Evaluation of
State-of-the-Art Discrete Symmetry Detection Algorithms," Computer
Vision and Pattern Recognition Conference (CVPR '08)
[PDF] [Project Page]
Minwoo Park, Yanxi Liu and Robert T. Collins, "Efficient Mean Shift Belief
Propagation for Vision Tracking," Computer Vision and Pattern
Recognition Conference (CVPR '08)
[PDF]
Grant
Schindler, Panchapagesan Krishnamurthy, Roberto Lublinerman, Yanxi Liu and Frank Dellaert,
"Detecting and Matching Repeated Patterns for Automatic Geo-tagging in
Urban Environments," Computer Vision and Pattern Recognition
Conference (CVPR '08)
Leonid Teverovskiy,
James Becker, Oscar Lopez, Yanxi Liu, "QUANTIFIED BRAIN ASYMMETRY FOR AGE ESTIMATION OF NORMAL AND AD/MCI
SUBJECTS," 5th IEEE International Symposium on Biomedical Imaging:
From Nano to Macro. May 14-17, 2008. Paris, France.
Brian A. Canada, Georgia K.
Thomas, Keith C. Cheng, James Z. Wang and Yanxi Liu ``Automatic Lattice Detection in
Near-Regular Histology Array Images,'' In Proceedings of the IEEE
International Conference on Image Processing, San Diego, California, IEEE, October 2008.
Brian A. Canada, Georgia K.
Thomas, Keith C. Cheng, James Z. Wang and Yanxi Liu ``Towards Efficient Automated
Characterization of Irregular Histology Images via Transformation to Frieze-Like
Patterns,'' In Proceedings of the ACM International Conference on
Image and Video Retrieval, Niagara
Falls, Canada, ACM, July 2008.
* Computational
Symmetry and Group Theory Applications, including image/video analysis of
brains, faces, gaits, dance (computer vision), mechanical and kinematic
assemblies (robotics), periodical and near-regular patterns (pattern
recognition), and texture analysis, classification and synthesis (computer
graphics).
http://vision.cse.psu.edu/research/research.shtml
* Discriminative subspace exploration for reduction and selection (machine learning), including large biomedical image database indexing and retrieval, classification, CAD for early detection of neurodegenerative diseases, target tracking and deformable registration.
http://vision.cse.psu.edu/research/research.shtml
http://www.cs.cmu.edu/afs/cs.cmu.edu/user/yanxi/www/images/medical_image.html
Kyle Brocklehurst (on-leave, Ph.D. candidate, CSE/PSU)
Minwoo Park (Ph.D.) CSE/PSU, 2010. KODAK Research Laboratories.
I-Kao Chiang (B.S.) Honor thesis,
Tamara Belkina
(B.S. honor thesis)
Minwoo Park (M.S) EE/PSU. 2007.
Seungkyu Lee (M.S) EE/PSU. 2007.
Zhang, Jiayong (Ph.D.)
RI/CMU May 2006. Google
Lin, Wen-Chieh (Ph.D.) RI/CMU (June 2003 -- January 2006).
National Chiao-Tung University, Taiwan.
Harriet Pashley (BS)
CSD/CMU, 2005
Leonid Teverovskiy, ML/CMU
(2002-2008)
Hays, James CSD/CMU (2003-2006)
A quotation from Yan-Xi-Shan (unrelated to Yan-Xi Liu)

---
Frank Zappa, The Real Frank Zappa Book
竹叶青

Jazzy's painting and music