Research Projects

Interactive Volume Rendering on Multi-Core Processors
Winner, 3rd Prize, IBM Cell/B.E. University TOP Innovator Challenge
[
IBM Press Release][Contest Home]
Jusub Kim and Joseph JaJa, Proceedings of EUROGRAPHICS Symposium on Parallel Graphics and Visualization 2008
We have worked on developing techniques and strategies for interactive rendering of large volume data on multi-core CPUs and programmable GPUs environments. We are hoping that our work will provide a flexible and powerful rendering framework for volume graphics.

Efficient Data Layout for Out-of-Core Visualization
Jusub Kim, Joseph JaJa,
Proceedings of 19th International Conference on Scientific and Statistical Database Management, 2007  [PDF]

We introduce a new efficient data layout scheme to efficiently handle out-of-core axis-aligned slicing queries of very large multi-dimensional
volumetric data.

Efficient Out-of-Core Indexing for Out-of-Core Visualization
Jusub Kim, Joseph JaJa,
Proceedings of 19th International Conference on Scientific and Statistical Database Management, 2007 [PDF]

We discuss a new efficient out-of-core multidimensional indexing structure, information-aware 2^n-tree, for indexing very large Multi-dimensional volumetric data.

 

Visualization-Supported 3-D Segmentation
Jusub Kim, Dean P. McCullough, Prabhakar Gudla,Stephen J. Lockett,  National Cancer Institute Research Day, 2006 [PPT]

We designed a new occlusion-free visualization interface to make the current semi-automatic 3-D segmentation process more efficient.

Efficient Out-of-Core Indexing for Large Multi-dimensional Time-series data 
Joseph JaJa, Jusub Kim, Qin Wang,
Proceedings of the 2004 International Conference on Scientific and Statistical Database Management, 2004 [PDF]

We consider the problem of querying large scale multidimensional time series data to discover events of interest, test and validate hypotheses, or to associate temporal patterns with specific events.

Fast Face Localization Algorithm for Real-Time Face Recognition
Jusub Kim and Jaihie Kim,
Proceedings of the 2001 Computer Vision and Pattern Recognition Workshop, Korea Information Science Society, 2001
[MS Thesis]
We present a new fast face localization algorithm based on neural-network for real-time face recognition. 


 
Selected Class Projects

GPU-Based Isosurface Extraction 
Jusub Kim and Qin Wang, 2006
[PDF]
 
We have implemented three isosurface computation/rendering systems: one CPU-based and two GPU-based. Because of faster floating point operation time of GPU, we could achieve considerable speed up in isosurface computation by transferring the cost of interpolation time to GPU.

 

High Performance Super-resolution Image Reconstruction
John Kleint, Jusub Kim, Ryan Farrell, 2005 [PDF]
Super-resolution Image Reconstruction is the process of taking multiple images of the same scene and combining them to get one higher resolution image of that scene. We have implemented a basic parallel image super-resolution reconstruction system using MPI.

Experimental Studies on Thread-level Parallelism
Jusub Kim and Soobum Lee, 2004 [PDF]
We explored the scalabilities of parallel algorithms and discover
what factors and how they influence on the scalabilities. For that purpose, we picked image convolution in image processing area and merge sort in sorting area and implemented their parallel versions using a shared-memory model on a simulator.

Filter-Bank Design and Sub-band Coding for Image Compression
Jusub Kim, 2003
[PDF], Best Class Project

We designed a two-channel perfect reconstruction FIR QMF filter bank, a two-channel uniform DFT filter bank, a three-channel PR FIR bank and
finally a 2D PR FIR filter bank. At each system, we explored the effectiveness of the subband coding using the sample images and signals.

 

Shape-Based Image Retrieval In Logo Databases
Jusub Kim, 2002
[PDF]
In this project, shape-based image retrieval problems are handled especially in black-white image databases. We present a new interior model for connected black-white images and introduce two approaches to capture the shape of images based on the model.

 

 

HMD (Head Mounted Display) Design for Virtual Reality
Jusub Kim, 1996 [B.S. Thesis]
I designed and implemented  an electro-magnetic device that measures earth magnetics and find out the viewer's direction.

 

 

  My First Projects

  • Save the Princess - Video Game (1987)
    - I did my first visual computing project when I was 10. I drew an apple 8-bit computer system with bunch of lines commands using Basic language. It was cute enough to be selected as the cover design of a computer text book in the computer institute where I learned Basic, Fortran, Pascal and so on.  
    But, my first serious visual computing project was when I was 12. I made a video game where one has to control a helicopter and defeat enemy airplanes and cars to rescue a kidnapped princess. I made it using Basic on a Samsung's 8-bit computer. I remember that in order to make the visual effects of a flowing river, I had to make a long array of river images and moved a screen-size window at each frame.