Chengjun Liu (CV)
Professor
Department of Computer
Science
New Jersey Institute of
Technology
Newark, NJ 07102
Email: chengjun.liu@njit.edu
Phone: 973-596-5280
Office: GITC 4306
Research Interests
Pattern Recognition
(Face/Iris Recognition, Color Image Feature Extraction and
Classification, Classifier Fusion)
Machine Learning
(Statistical Learning, Kernel Methods, Innovative Kernel
Functions/Models, Similarity Measures)
Computer Vision
(Object/Face/Iris/Eye Detection, Motion Analysis and Video
Processing)
Image and Video
Analysis (Image Search and Retrieval, Image
Category Classification, Color Image Analysis, New Color
Spaces, Gabor Image Representation)
Security
(Biometrics)
Patents
C. Liu: "Face Detection Method and Apparatus", United
States Patent 7,162,076, January 9, 2007.
C. Liu and H. Wechsler: "Feature Based Classification",
United
States Patent 6,826,300, November 30, 2004.
|
|
|
|
Publications (by
category) (by
year) (citation
in SCOPUS) (citation
in Google Scholar)
|
Teaching
|
Recent Research
AI/ML for Smart Energy -- We apply our
award-winning Computer Vision, Video Analytics,
Smart UAS/Drones, Edge Computing, and 5G
technologies for the following example projects:
- Machine Learning and AI for Optimizing
and Safeguarding Energy Transmission in Storms
by Automatic Inspection of Electrical Wires
- Preventing Wildfires in Energy
Transmission by Automatic Power Line Defects
Detection Using Machine Learning and AI
- Twin Wire Crawlers for Power Line and
Infrastructure Inspection and Critical Data
Collection
- Advanced Image and Video Analytics for
Detecting Power Line Defects and
Infrastructure Failures
- Smart Energy using Innovative Computer
Vision, Video Analytics, Smart UAS/Drones,
Edge Computing, and 5G technologies
AI/ML for Smart Health -- We apply our
Innovative AI, Statistical Learning and Deep
Learning Methodologies for the following example
projects:
- AI Doctor & Digital Assistant by
Capitalizing on a Mixture of AI Medical
Systems for Providing the Best Care for
Anyone, Anywhere, and Anytime
- Innovative AI Model for Accurately
Predicting Margin Positivity from
Intraoperative Digital Specimen Mammograms to
Guide Surgical Decision-making and Reduce
Re-excision Rates
- Innovative AI for Rosacea Detection and
Innovating Interpretability of AI Models for
Enhancing Trust and Adoptability
- Robust Parkinson’s Disease Early
Detection Using Advanced Open and Scalable AI
with the Optimal Feature Extraction and the
Bayes Classifier
- Deep Learning Based Prediction of
Alzheimer’s Disease Conversion From Mild
Cognitive Impairment Using Structural MRI:
Toward an Early-Detection AI Doctor
- ASHVINI: AI Surgical Histopathology
Visualization & Interpretable Network
Intelligence for Glioma Detection
- Innovative Artificial Intelligence
Framework for Medical Data Security in Large
Language Models.
- Electronic Health Records Prediction,
Laparoscopic Image Desmoking and Enhancement
for Improving Surgical Visualization, Brain
Trauma Detection, Automatic Liver Tumor
Detection, Automatic Prostate Tumor Detection,
Automatic Skin Tumor Detection, Automatic
Gastric Tumor Detection
Video Analytics -- Intelligent Traffic
Monitoring and Control, Video Surveillance, Video
Incident Detection, Video Scene Analysis, Video
Object Recognition, Video Analytics for Improving
Traffic Safety, Home Security, Smart UAS/Drones,
and Autonomous Driving.
Pattern Recognition, Machine Learning, and Image
Processing -- We develop new color models,
advanced pattern recognition and machine learning
methods, and fuse them to address large-scale and
grand-challenge problems, such as the face
recognition grand challenge (FRGC) problem and the
Caltech 256 image categories image search and
classification problem.
- By fusing our new kernel
methods (kernel Fisher analysis, kernel PCA
with fractional power polynomial models), new
color models, new similarity measures, we
achieve the best face verification performance
for the government organized FRGC competition.
- By fusing new color models
with popular image descriptors, such as the
scale-invariant feature transform (SIFT) and
the local binary patterns (LBP), we are able
to develop new image descriptors with improved
image search and image category classification
performance.
Computer Vision -- We
develop new statistical methods for more accurate
and efficient target detection from image and
video.
- One example is an efficient
support vector machine (eSVM). The eSVM,
which introduces a single value for all the
slack variables corresponding to the training
samples on the wrong side of their margin,
defines a much smaller set of support vectors
and hence improves computational efficiency
without sacrificing generalization
performance.
- Another example is feature
local binary patterns (FLBP). The FLBP
method, which encodes both local and feature
information, improves upon the popular LBP
approach for texture description and pattern
recognition.
- Yet another example is the
Bayesian discriminating features (BDF)
method. The BDF method, when trained on
images from only one database yet works on
test images from diverse sources, displays
robust generalization performance for face
detection.
- The eSVM, FLBP, and BDF
methods have been successfully applied to
automatic target detection on large-scale and
challenging databases, such as eye detection
and face detection.
Biometrics and Security
-- We have developed advanced face recognition,
face detection, iris detection and recognition,
image search, and image category classification
technologies for homeland security, justice and
law enforcement, and business applications.
|
|