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Won-Jong Lee

Research Scientist @ Intel

2200 Mission College Blvd, Santa Clara, CA 95054.

         

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I am a research scientist at Advanced Rendering Technology (ART) Team in Intel, where I am working on graphics research. Before joining Intel. I worked on ray tracing, advanced computer graphics, real-time rendering, reconfigurable processors, and mobile GPUs at Samsung Advanced Institute of Technology (SAIT) as a principal research scientist. I also led an R&D team that was developing a new ray tracing GPU system at SAIT.

 

I received a Ph.D. and MS in computer science at Yonsei University, where I researched graphics architecture, simulation framework, and parallel rendering on GPU clusters. While studying computer science, I also worked on scientific volume visualization during my internship at National Institute of Advanced Industrial Science and Technology (AIST). I received a BS in computer science and engineering at Inha University, where my interests were real-time graphics and computer architecture.

 

My primary research interests are ray tracing, real-time rendering, global illumination, and machine learning.

News

Talks & Papers

Note that some of these papers might carry certain copyright restrictions of the respective conference, journal, or organization that has published the original article.

2020​

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"Lazy Build of Acceleration Structures with Traversal Shaders"
Won-Jong Lee 
and Gabor Liktor
ACM SIGGRAPH Asia 2020, Technical Communication, Article No. 11, pp. 1-4.

2019

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"Flexible Ray Traversal with an Extended Programming Model"
Won-Jong Lee, Gabor Liktor, and Karthik Vaidyanathan
ACM SIGGRAPH Asia 2019, Technical Brief, pp. 17-20.

2017

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"Fast Stereoscopic Rendering on Mobile Ray Tracing GPU for Virtual Reality Applications,"
Won-Jong Lee
, Seok Joong Hwang, Youngsam Shin, Jeong-Joon Yoo, and Soojung Ryu,
IEEE International Conference on Consumer Electronics (ICCE) 2017, pp. 355-357

 

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"Accelerating Vector Graphics on Low-End Device,"
Jeong-Joon Yoo, Sundeep Krishnadasan, Youngsam Shin, Won-Jong Lee, and Soojung Ryu,
IEEE International Conference on Consumer Electronics (ICCE) 2017, pp. 180-181

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"Towards an Efficient Data Transfer on Mobile Device: A Case Study on Ray-Tracing,"
Youngsam Shin, Won-Jong Lee, Jeong-Joon Yoo, and Soojung Ryu,
IEEE International Conference on Consumer Electronics (ICCE) 2017, pp. 358-359

2016

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"Adaptive Multi-Rate Ray Sampling on Mobile Ray Tracing GPU,"
Won-Jong Lee
, Seok Joong Hwang, Youngsam Shin, Soojung Ryu and Insung Ihm,
ACM SIGGRAPH ASIA 2016, Symposium on Mobile Graphics and Interactive Applications (MGIA), Article No. 3

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"Tile Binning and Rendering for Resolution Independent Graphics,"
Jeong-Joon Yoo, Jaedon Lee, Won-Jong Lee, and Soojung Ryu
IEEE International Conference on Consumer Electronics (ICCE) 2016, pp. 71-72.

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"PerfEPI: Parallel Performance Estimation with Effective Progress Index,"
Youngsam Shin, Won-Jong Lee, Seok Joong Hwang, and Soojung Ryu
IEEE International Conference on Consumer Electronics (ICCE) 2016, pp. 29-30.

2015

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"Tile-based Path Rendering for Mobile Devices,"
Jeong-Joon Yoo, Jaedon Lee, Sundeep Krishnadasan, Won-Jong Lee,

John Brothers, and Soojung Ryu
ACM SIGGRAPH ASIA 2015, Symposium on Mobile Graphics and Interactive Applications

(MGIA), Article No. 5.

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"Latency Tolerance Techniques for Real-time Ray Tracing on Mobile Computing Platform,"
Youngsam Shin, Seok Joong Hwang, Jaedon Lee, Won-Jong Lee, and Soojung Ryu
ACM SIGGRAPH ASIA 2015, Symposium on Mobile Graphics and Interactive Applications

(MGIA), Article No. 1.

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"A Mobile Ray Tracing Engine with Hybrid Number Representation,"
Seok Joong Hwang, Jaedon Lee, Youngsam Shin, Won-Jong Lee, and Soojung Ryu
ACM SIGGRAPH ASIA 2015, Symposium on Mobile Graphics and Interactive Applications

(MGIA), Article No. 3.

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"An Efficient Hybrid Ray Tracing and Rasterizer Architecture for Mobile GPU,"
Won-Jong Lee
, Seok Joong Hwang, Youngsam Shin, Jeong-Joon Yoo, and Soojung Ryu
ACM SIGGRAPH ASIA 2015, Symposium on Mobile Graphics and Interactive Applications

(MGIA), Article No. 2

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"Reorder Buffer: An Energy-Efficient Multithreading Architecture for Hardware MIMD Ray

Traversal,"
Won-Jong Lee,
Youngsam Shin, Seok Joong Hwang, Seok Kang, Jeong-Joon Yoo, and Soojung Ryu
ACM High-Performance Graphics, 2015, Aug. pp.21-32.

2014

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"HART: A Hybrid Architecture for Ray Tracing Animated Scenes,"
Jae-Ho Nah, Jin-Woo Kim, Junho Park, Won-Jong Lee, Jeong-Soo Park, Seok-Yoon Jung,

Woo-Chan Park, Dinesh Manocha, and Tack-Don Han
IEEE Transactions on Visualization and Computer Graphics, Nov., 2014.

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"An Energy Efficient Hardware Multithreading Scheme for Mobile Ray Tracing,"
Won-Jong Lee,
Youngsam Shin, Jaedon Lee, Seok Joong Hwang, Soojung Ryu, Jeongwook Kim
ACM SIGGRAPH ASIA 2014, Symposium on Mobile Graphics and Interactive Applications

(MGIA), article no. 1, 

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"Shading Language Compiler Implementation for a Mobile Ray Tracing Accelerator,"
Seok Joong Hwang, Ankur Deshwal, Won-Jong Lee, Youngsam Shin, Jaedon Lee,

Donghoon Yoo, and Soojung Ryu,
ACM SIGGRAPH ASIA 2014, Symposium on Mobile Graphics and Interactive Applications

(MGIA), article no. 2

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"Two-AABB Traversal Architecture for Real-time Mobile Ray Tracing,"
Jaedon Lee, Won-Jong Lee, Youngsam Shin, Seok Joong Hwang, Soojung Ryu, Jeongwook Kim,
ACM SIGGRAPH ASIA 2014, Symposium on Mobile Graphics and Interactive Applications

(MGIA), article no. 14

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"Full-Stream Architecture for Ray Tracing with Efficient Data Transmission,,"
Youngsam Shin, Jaedon Lee, Won-Jong Lee, Soojung Ryu, Jeongwook Kim,
International Symposium on Circuits and Systems (ISCAS), pp. 2165-2168, June, 2014

2013

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"Real-Time Ray Tracing on Coarse-grained Reconfigurable Processor,"
Jaedon Lee, Youngsam Shin, Won-Jong Lee, Soojung Ryu, Jeongwook Kim,
International Conference on Field-Programmable Technology (ICFPT), pp. 192-197, Dec., 2013

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"Real-Time Ray Tracing on Future Mobile Computing Platform,"
Won-Jong Lee
, Youngsam Shin, Jaedon Lee, Shi-Hwa Lee, Soojung Ryu, Jeongwook Kim
ACM SIGGRAPH ASIA 2013, Symposium on Mobile Graphics and Interactive Applications

(MGIA), article no. 56, November. 2013

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"Energy Efficient Data Transmission for Ray Tracing on Mobile Computing Platform"
Youngsam Shin, Won-Jong Lee, Jaedon Lee, Shi-Hwa Lee, Soojung Ryu, Jeongwook Kim
ACM SIGGRAPH ASIA 2013, Symposium on Mobile Graphics and Interactive Applications

(MGIA), article no. 64, November. 2013

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"Ray Tracing is the Future and Ever will be..,"
Alexander Keller, Ingo Wald, Tero Karras, Samuli Laine, Jacco Bikker, Christiaan Gribble, 

Won-Jong Lee, and James A. McCombe
ACM SIGGRAPH 2013, Courses, article no. 9, July. 2013.

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"SGRT: A Mobile GPU Architecture for Real-Time Ray Tracing,"
Won-Jong Lee, 
Youngsam Shin, Jaedon Lee, Jin-Woo Kim, Jae-Ho Nah, Seok-Yoon Jung,

Shi-Hwa Lee, Hyun-Sang Park, and Tack-Don Han
ACM High Performance Graphics (HPG) 2013, pp. 109-119, July. 2013.

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"A Novel Mobile GPU Architecture based on Ray Tracing,"
Won-Jong Lee, 
Youngsam Shin, Jaedon Lee, Jin-Woo Kim, Jae-Ho Nah, Hyun-Sang Park, 

Seok-Yoon Jung, and Shi-Hwa Lee
IEEE International Conference on Consumer Electronics, pp. 21-22, Jan. 2013.

2012

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"Parallel Pipelined Traversal Unit for Hardware Accelerated Ray Tracing,"
Jin-Woo Kim, Won-Jong Lee, Min-Woo Lee, Tack-Don Han
ACM SIGGRAPH Asia 2012, Posters, Nov. 2012.

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"SGRT: A Scalable GPU Mobile Architecture based on Ray Tracing",
Won-Jong Lee, 
Shi-Hwa Lee, Jae-Ho Nah, Jin-Woo Kim, Youngsam Shin, Jaedon Lee

and Seok-Yoon Jung
ACM SIGGRAPH 2012, Talks & Posters, Aug. 2012.

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"An Effective Task Scheduling Scheme for Multicore Tile-based Rendering GPU"
Won-Jong Lee
, Seok-Yoon Jung, and Shi-Hwa Lee
HPG 2012, ACM Conference on High-Performance Graphics, June. 2012.

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"Compact Alpha-Texture Compression Unit for Mobile GPU"
Jeong-Ae Park, Won-Jong Lee, Sang-Oak Woo, Seok-Yoon Jung, and Shi-Hwa Lee
HPG 2012, ACM Conference on High-Performance Graphics, June. 2012.

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"Adaptvie Restart for Stackless BVH Traversal"
Jaedon Lee, Won-Jong Lee, Youngsam Shin, Seung-Won Lee, and Shi-Hwa Lee
HPG 2012, ACM Conference on High-Performance Graphics, June. 2012.

2011

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"A Scalable GPU Architecture based on Dynamically Embedded Reconfigurable Processor"

Won-Jong Lee, Sang-Oak Woo, Kwon-Teak Kwon, Sung-Jin Son, Kyung-June Min,

Choong-Hoon Lee, Kyung-Ja Jang, Chan-Min Park, Seok-Yoon Jung, and Shi-Hwa Lee,
HPG 2011: ACM Conference on High-Performance Graphics, Aug. 2011.

2009

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"Selective and Adaptive Supersampling for Real-Time Ray Tracing,"
Bongjun Jin, Insung Ihm, Byungjoon Chang, Chanmin Park, Won-Jong Lee and Seokyoon Jung,
HPG 2009: ACM Conference on High-Performance Graphics, pp. 117-125, Aug. 2009.

2008

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"An Effective Load Balancing Scheme for 3D Texture-based Sort-Last Parallel Volume

Rendering on GPU Clusters,"
Won-Jong Lee
, Vason P. Srini, Woo-Chan Park, Shigeru Muraki and Tack-Don Han,
IEICE Transactions on Information and Systems, Vol. E91-D, No.3, pp.846-856, Mar. 2008.

2007

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"An Effective Bump Mapping Hardware Architecture Using Polar Coordinate System,"
Seung-Gi Lee, Woo-Chan Park, Won-Jong Lee, Sung-Bong Yang and Tack-Don Han,
Journal of Information Science and Engineering, Vol. 23, No.2, pp.569-588, Mar. 2007.

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"Simulation and Development Environments for Mobile 3D Graphics Architecture,"
Won-Jong Lee
, Woo-Chan Park, Vason P. Srini and Tack-Don Han,
IEE Proceedings Computers & Digital Techniques, 2007, 1, (5), pp. 501-507.

2006

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"Data Fusion Applied on Autonomous Ground Vehicles,"
Emanuel Taropa, Vason P. Srini, Won-Jong Lee and Tack-Don Han,
IEEE International Conference on Advanced Communication Technology 2006, pp. 744-749,

Feb. 2006.

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"A Processor Architecture with Effective Memory System for Sort-last Parallel Rendering,"
Woo-Chan Park, Duk-Ki Yoon, Kil-Whan Lee, Il-San Kim, Kyung-Soo Kim, Won-Jong Lee,

Tack-Don Han and Sung-Bong Yang,
ARCS 2006: Architecture of Computing Systems (LNCS), Vol. 3894, pp. 160-175, Mar. 2006.

2005

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"Adaptive and Scalable Load Balancing Scheme for Sort-Last Parallel Volume Rendering on

GPU Clusters"
Won-Jong Lee
, Vason P. Srini and Tack-Don Han,
IEEE International Workshop on Volume Graphics 2005, Posters, Jun. 2005.

2004

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"A Bandwidth Reduction Scheme for 3D Texture-Based Volume Rendering on Commodity

Graphics Hardware"
Won-Jong Lee
, Woo-Chan Park, Jung-Woo Kim, Tack-Don Han, Sung-Bong Yang

and Francis Neelamkavil,
ICCSA 2004: International Conference on Computational Science and Its Applications,

Vol. 3044, pp 741-750, May 2004.

2003

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"An Effective Hardware Architecture for Bump Mapping Using Angular Operation"
Seung-Gi Lee, Woo-Chan Park, Won-Jong Lee, Tack-Don Han and Sung-Bong Yang,
ACM SIGGRAPH/Eurographics Workshop on Graphics Hardware 2003, pp. 68-75, Jul. 2003.

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"EmDavid: an Embedded 3D Graphic Acceletator for Mobile Devices,"
Cheol-Ho Jeong, Woo-Chan Park, Jong-Chul Jeong, Hyun-Jae Woo, Kil-Whan Lee, 

Won-Jong Lee, Il-San Kim, Seung-Gi Lee, Jae-Hyun Kim, Tack-Don Han and Moon-Key Lee,
Cool Chips VI: IEEE International Symposium on Low-Power and High-Speed Chips, pp. 72, Apr. 2003.

2002

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"A New Bandwidth Reduction Method for Distributed Rendering Systems,"
Won-Jong Lee
, Hyung-Rae Kim, Woo-Chan Park, Jung-Woo Kim, Tack-Don Han

and Sung-Bong Yang,
EurAsia-ICT 2002: Information and Communication Technology (LNCS), Vol. 2510, pp 387-394,

Oct. 2002.

2001

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"A High Performance of 3D Graphics Rasterizer with Effective Memory Structure,"
Woo-Chan Park, Kil-Whan Lee, Seung-Gi Lee, Moon-Hee Choi, Won-Jong Lee, Cheol Ho Jeong,

Byung-Uck Kim, Woo-Nam Jeong, Il-San Kim, Won-Ho Chun, Won-Suk Kim, Sung-Bong Yang,

Moon-Key Lee, Shin-Dug Kim and Tack-Don Han,
Cool Chips IV: IEEE International Symposium on Low-Power and High-Speed Chips,

pp. 97-108, Apr. 2001.

2000

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"The Design of the Perspective Texture Mapping for 3D Computer Graphics in Rasterizer

Merged Frame Buffer Technology,"
Seung-Gi Lee, Woo-Chan Park, Won-Jong Lee, Woo-Nam Jung, and Tack-Don Han,
AP-ASIC 2000: IEEE Asia-Pacific Conference on ASICs, pp. 219-222, Aug. 2000.

Thesis