Projects

3D Model Retrieval

We propose a new set of features that view the 3D model as a solid binary region. Ten features such as volume-surface ratio and moment invariants are extracted. 

Lightweight Arithmetic IP

The goal of this project is to create a library of parameterizable lightweight-arithmetic IP blocks, suitable for both media and silcon designers.

Active IBR

we want to study how we can capture the scene more efficiently. Our approach is a combination of algorithms in different fields, which is challenging but very  interesting. 

Light Weight Multi-View Capturing

This project introduces a multi-view capturing system that uses single camera but multiple mirrors. From the image of multiple mirrors, we are able to extract multi-view images of a scene reflected by mirrors.

All Focused Light Field Rendering by Fusion

In this project, we propose a novel IBR method that enables us to render a novel view with sufficient quality using less number of images compared with that required for non-aliased rendering.

Low Power VLC Decoder

One aspect of multimedia application systems is variable length decoding, which is used for decompression. By designing a custom hardware to decode the bitstream, a low power design can be realized.

Content-aware Adaptive Retry for Video Streaming on 808.11 LANs

 In this project, we propose a content-aware adaptive retry (CAR) mechanism for video streaming over 802.11 WLANs, where retry decision is made dynamically according to packet importance and its play-out schedule.

Mobile Camera Array

In this project, we build a self-reconfigurable and low-cost camera array for real-time capturing and rendering dynamic scenes.

DSP for Biomolecular Sequences and Structures

We propose new techniques for matching, classifying, and searching 3D protein structures. We use the classic signal processing and information theory to discover the "information" in human genes.

Multimodal Biometrics

The synergetic fusion of multiple biometric traits has been shown to be of benefit in the detection of fraud and improving the performance and robustness of existing biometric technologies. 

Dynamic Route Planning

We introduce a "Boids" concept to model the intelligent vehicles.  Each intelligent vehicle follows simple rules/operations and communicates locally with the neighbor vehicles for dynamic traffic-aware route planning.

Personal Authentication Based on SMMS

We build a new classifier for authentication which has the simple computational requirement on verification with the concept of Symmetric Maximized Minimal distance in Subspace (SMMS). 

Face In Action (FIA) Face Video Database 

To evaluate video-based face recognition, we are making the effort to collect such a face video database, called Face In Action (FIA) database.

Portable 3D Faces for Field Identification of Suspects

 Build a hi-resolution 3D face model from a single low-resolution (2D) face image.  Using a portable computer (e.g., PDA), synthesize possible changes (facial hair, hair style, expressions, etc.) in the face's appearance.

Face Recognition

We have been actively pursuing algorithms for more human like face recognition in terms of the ability to generalize to unseen conditions and employing different representations for different claimants.

Probabilistic Relevance Feedback for Image Retrieval

The goal is to retrieve images in database that are similar to the query the user has in mind. Relevance feedback is a technique to let the user interact with the system by giving examples so that the system has more information of what the user needs.

Hand Drawn Sketch Retrieval

In this system, the user is able to draw a query and the system will search through similar sketches from a collection of free-form hand-drawings.

Should we make automatic PR more human?

The Pattern Recognition (PR) community is largely split on whether it is a good or bad thing to try and make (and how) automatic PRs mimic humans. The central vision for much of our research is concerned with an answer to such a question.

In this project, we present a complete real-time hand tracking and 3-D modeling system based on a single camera.

In this project, we developed a hardware reference model for a speech recognition engine, Lynx, written in C++.

IBR Sampling

We want to study the IBR sampling problem from with classic methods in signal processing.

Stop Sign Detection

An automatic stop sign detector could help reduce the number of missed stop sign detections. Will an automatic stop sign detector that has a non-zero error rate benefit drivers? 

ICTrack: A Flexible Toolbox for Tracking

For the novice, we create a flexible interface that the novice can use  without having to know the details. For the expert, we provide a framework for developing new algorithms and testing them versus existing techniques.

Trademark Retrieval

The user inputs a query by providing a rough sketch and then the system automatically extracts features from this query sketch to search for similar trademarks in the database.

Image-Based Relighting

We develop the statistical framework for Image-Based Relighting. Using image-based relighting, one can render realistic relit images of a scene without prior knowledge of objects.

Video Based Face Recognition

For having better modeling of different variations of human faces, a face mosaic model is obtained from training face sequences and used for recognition.

Illumination Normalization for Face Recognition

Face recognition works poorly as the illumination  is in bad condition. To solve this problem, an illumination normalization algorithm is proposed as a pre-processing stage before face recognition.

Voice Recognition

The ability to estimate robust and accurate speaker models with modest amounts of training utterances is still an elusive task. We are actively developing techniques to address this important problem.

Key Generation based on Biometrics 

We build a key generation system based on biometrics.  We also analyze the security problem of user information associated key generation (UIAKG) systems.