Zhigang Deng

(Full) Professor, Ph.D.
   Director of Graduate Studies,
   Director of Computer Graphics
         & Interactive Media Lab,
Department of Computer Science,
University of Houston, Houston, TX

Office:
Phillip G. Hoffman Hall (PGH), 536
Houston, TX 77204-3010

Tel: +1 713 743 1018
Fax: +1 713 743 3335

Email (preferred way to contact me):
zdeng4 (at) uh.edu

Mailing Address:
Phillip G. Hoffman Hall, Department of Computer Science,
3551 Cullen Blvd, Room 501,
Houston, TX, 77204-3010

Research Opportunities

I am constantly looking for new graduate or undergraduate students to join my group! Self-Motivated students with solid math, vision, or graphics background are encouraged to apply. If you are already a current MS or PhD student in UH Computer Science program and would like to work with me, please make sure to take COSC6372 and/or COSC6356 courses.

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Interactive Mechanism Modeling from Multi-view Images

development of a novel interactive mechanism modeling approach based on multi-view images including interactive 3D modeling and stochastic motion parameter estimation.

Hexahedral Mesh Generation and Optimization

A first and complete pipeline to optimize the global structure of a hex-mesh, by identifying and removing those valid removal base-complex sheets that contain misaligned singularities, and a volumetric partitioning strategy based on a generalized sweeping framework to seamlessly partition the volume of an input triangle mesh into a collection of deformed cuboids.

Robust and Accurate Skeletal Rigging from Mesh Sequences

Using the input of an animated mesh sequence, this approach can automatically extract its optimal skeleton structure, joint positions, linear blend skinning weights, and the corresponding bone transformations.

Two-layer Sparse Compression of Dense-Weight Blend Skinning

It introduces an efficient two-layer sparse compression technique to substantially reduce the computational cost of a dense-weight skinning model, with insignificant loss of its visual quality.

Smooth Skinning Decomposition with Rigid Bones

The SSDR model can effectively approximate the skin deformation of nearly articulated models as well as highly deformable models by a low number of rigid bones and a sparse, convex bone-vertex weight map.

Marker Optimization for Facial Motion Acquisition and Deformation

An approach to compute optimized marker layouts for facial motion acquisition as optimization of characteristic control points from a set of high-resolution, ground-truth facial mesh sequences

Perceptually Guided Facial Animation

A perceptually guided computational framework is introduced to generate expressive facial animation, and quantitatively and automatically evaluate visual speech animation.

Eye and Head Animations

Data-driven synthesis algorithms for realistic and coordinated eye and head movements based on (live or pre-recorded) speech input

Visual Speech Animation Synthesis

Automated algorithms and systems to generate expressive visual speech animations based on novel typed or spoken input

Facial Animation Editing and Transferring

Efficient and automated algorithms and systems for editing and transferring facial motions across different models or modalities, with intuitive and little user interaction.

Live Speech Driven Facial Animation

Fully-automated algorithms to generate realistic lip-sync and head-and-eye animations based on live speech input alone, which can run in real-time on an off-the-shelf computer.

Blendshape Facial Animation

Algorithms for automating or reducing time-consuming tuning efforts of the blendshape animation approach, including target interference reducing, cross-model mapping, and model construction.

Human Motion Compression and Retrieval

Effective algorithms for compressing and retrieving character motions by hierarchically extracting meaningful motion patterns from dataset, or by performing sparse dictionary learning from dataset.

Freestyle Group Formation Generation for Agent-based Crowd Simulation

An intuitive and efficient approach to generate arbitrary and precise group formations by sketching 2D formation boundaries in a freeform manner.

Context-Aware Motion Diversification and Perception for Crowds

A novel scheme for dynamically controlling motion styles of agents to increase the motion variety of a crowd.

Sketching and Modeling Faces From Vague Information

Data-driven 3D face modeling algorithms and systems to rapidly create 3D realistic textured faces through intuitive 2D portrait drawing and automated texture inference, based on certain limited and vague user input.

Conversational Avatars for Instant Messaging on Mobile

An automated avatar interface is driven by the text messages exchanged between chatting participants, exhibiting realistic lip-synchronized facial animation as well as head and gaze motions.

Online Mocap Marker Labeling for Interacting Targets

An online, automated mocap marker labeling approach for multiple interacting articulated targets by fitting rigid bodies and exploiting trained structure and motion models

Understand Human Behaviors in Multiparty Conversations

Quantifying, understanding, and modeling human behaviors and gestures when they are involved with multiparty conversations

Interactive Cage Generation for Deformation

An efficient complete pipeline to generate high quality cages for 3D models with arbitrary topological complexities, including high genus or complex models.

Creative Virtual Tree Modeling

A new method to efficiently generate a set of morphologically diverse and inspiring virtual trees through hierarchical topology-preserving blending, aiming to facilitate designers' creativity production.

Feature-preserving Mesh Denoising

a novel scheme for robust feature-preserving denoising for 3D mesh models

Realistic Traffic Simulation

Design of novel and efficient algorithms and systems to simulate large-scale realistic traffic in various road and urban settings.

Insect Swarm Simulation

A highly efficient field-based, GPU friendly approach to realistically simulate behavior patterns of a variety of insect swarms under various scenarios.

Serious Gaming

A serious efforts for applying serious gaming for education, health, and social network applications

Improving Gaming Experience by Incorporating Physiological Feedback and Gamers' Profiles

Novel methodology to improve users' gaming experience by real-time monitoring their physiological signals or their individualized gamer profile, and thus automatically adjusting the difficulty level of computer games.

Energy-efficient GPU and Mobile Graphics Computing

Design of novel algorithms to statistically model and predict the power consumption of GPU-based computing, and perform in-depth quantitative analysis on the power consumption and runtime performance aspects of graphics computing and applications on mainstream smartphone devices.

Visual-Haptic Interfacing for Robot-Assisted Minimally Invasive Cardiac Surgery

A novel human-in-the-loop, visual haptic interfacing system for planning and performing real-time MRI guided, robot-assisted, minimally invasive surgical interventions on the beating heart, with particular focus on aortic valve implantations.

Spine Tracking and Segmentation in Neuron Images

Novel automated algorithms to accurately track, detect, segment a large number of dentrite spines from time-lapse confocal microscopy neuron images, in both 2D image level and reconstructed 3D geometric level.

Visualization and Planning of Neurosurgical Interventions

A highly efficient, GPU-accelerated visualization and planning technique to allow interactive, quantitative or semi-quantitative comparison among various points of entrance for neurosurgical procedures that require straight access.

3D Geometric Model Watermarking

A novel, robust, and high-capacity watermarking method for 3D Meshes with arbitrary connectivities in spatial domain based on affine invariants, by embedded the watermark as affine-invariant length ratios of one diagonal segment to the residing diagonal intersected by the other one in a coplanar convex quadrilateral.

Image-based Face Illumination Transfer

An image-based technique that transfers illumination from a source face image to a target face image, without any prior information regarding the lighting conditions or the 3D geometries of the underlying faces.

Interactive Teeth Segmentation

Interactive geometric algorithm to accurately segment the upper and lower teeth from 3D dental models that are directly reconstructed from 2D CT dental images, with intuitive and little user intervention.

Perceptual Understanding of Synthetic Facial Expressions and Animations

Investigate the region-significance and culture-dependence of facial expressions and movements, in terms of subject identification, emotion perception of 3D facial expression, and visual perception of avatar head movements.

Intermittency and Kinematics of Arm Movements

Investigate two potential sources for the origins of movement intermittency, and quantitatively understand the kinematics of mirror and parallel robot-assisted movements and rehabilitation.

Analysis of Mutimodal Emotion Recognition

Comprehensive analysis and understanding of the strengths, limitations, and combinational aspects of mutimodal emotion recognition algorithms and systems, based on multi-channles of humans including visual facial expression channel and acoustic speech channel.


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