|
Bio
I completed my Ph.D. in computer science in May, 2011,
supervised by Dr. Eraldo Ribeiro.
My main research interests are in two aspects: (1) nonrigid shape and image
deformation analysis; (2) vector-field data modeling and analysis. Before I
came to Florida Tech, I worked in the machine
vision industry, developing algorithms for object recognition, vision
inspection, and automatic quality-control systems.
|
|
|
Education
Ph.D. of Computer Science,
Florida Institute of Technology. 2007 - 2011.
M.Sc. of Computer Science from Central South University, China. 2003 - 2006.
B.Sc. of Applied Physics from Central South University, China. 1998 - 2002
|
|
|
Research & publications
|
Recent publications
|
|
Wei Liu and Eraldo Ribeiro. A Survey on Image-Based
Continuum-Body Motion Estimation. Image and Vision Computing, Elsevier,
2011 (Accepted).
Wei Liu and Eraldo Ribeiro. A Higher-Order Model
for Fluid Motion Estimation. International Conference on Image Analysis and
Recognition, Burnaby, Canada, 2011 (To appear).
|
|
|
|
Correspondenceless nonrigid image registration.
The registration quality (similarity measure) is
indirectly calculated through integral transforms using certain classes of
test functions, leading to an efficient and robust registration algorithm.
Related paper: Wei Liu, Eraldo Ribeiro. Estimating
Nonrigid Shape Deformation Using Moments. IEEE International Conference
on Pattern Recognition (ICPR), Istanbul, Turkey, 2010.
Talk
slides, demo code & data
|
|
|
|
Scale-rotation
invariant flow-field singular patterns.
A SIFT-like flow-field singular-pattern detector
based on complex-valued representation. Our method is able to detect and
describe singular-patterns of different scales and orientations.
Related paper: Wei Liu, Eraldo Ribeiro. Scale
and Rotation Invariant Detection of Singular Patterns in Vector Flow Fields.
IAPR International Workshop on Structural Syntactic Pattern Recognition
(S-SSPR), Cesne, Turkey, 2010.
Poster,
demo code & data
A short presentation at
videolecture.net
|
|
|
|
Meshless nonrigid
shape registration.
We extend the classic chamfer-matching energy to
a variational energy term for nonrigid shape
matching.
Related paper: Wei Liu, Eraldo Ribeiro. A
Meshless Method for Variational Nonrigid 2-D
Shape Registration. International Symposium on Visual Computing (ISVC),
2010.
Talk
slides
(Demo code and data will be released soon)
|
|
|
|
Meshless nonrigid
image registration.
We designed a simple meshless
method for nonrigid image registration. The method is based on partition-of-unity
and a novel and elegant consistency regularizer.
Related paper: Wei Liu, Eraldo Ribeiro. A
Novel Consistency Regularizer for Meshless
Nonrigid Image Registration. International Symposium on Visual
Computing (ISVC), 2010.
Talk
slides
(Demo code and data will be released soon)
|
|
|
|
Vision inspection
system.
Machine vision systems and algorithms for product
quality inspection and measuring.
Related paper: Wei Liu, Weisi Ding. High
Precision Ceramic Tile Quality Control System Based on Computer Vision,
Microelectronics and Computer (Chinese), Vol. 24 No. 1, 2007
|
|
|
|
Object counting and
tracking.
Round object detection and tracking
Related paper: Sanding Luo, Wei Liu.
Motion Correspondence Algorithm For Highly Similar Multi-Objects, Computer
Measurement and Control (Chinese), Vol. 14 No.10, 2006
|
|
|
