Chia-Kai Liang

liangck at gmail dot com

Multimedia Processing and Communication Lab

Graduate Institute of Communication Engineering

Room 505, BL Building, National Taiwan University, Taipei, Taiwan, 106.

ABOUT ME

I obtained my BS degree in Electrical Engineering from National Taiwan University (NTU) in 2004. Currently I am pursuing my Ph.D degree in the Graduate Institute of Communication Engineering at NTU. I hold a part-time position in Avisonic Corp during 2005-2007. My research interests include image/video processing, computer vision, and multimedia hardware architecture.

The world is in a chaos and hence I decide to join the Taiwan army from Oct. 2009 to Oct. 2010 (acutally that is a citizen's obligation so I have no choice). If you would like to provide any kind of pre-offer, you may want to check my Curriculum Vitae here.

USEFUL LINKS

Graphics/Vision/Information Labs and People

Wikipedia and Uncyclopedia

Bitex, DBLP, CG Paper Collection, and CG research discussion

Keith Price's Computer Vision Bibliography

Wiki of the Lab SVN of the lab Blog for the course AMMAI

NEWS

* One paper is accepted to ICIP 2009!!!
* The dissertation wins the first prize of the IPPR best dissertation award!!!
* Reference code of tile-based BP is now available here!!!
* One paper is accepted by CVPR 2009!!!

RESEARCH AND SELECTED PUBLICATIONS (see full publiation list here)

Hardware-Efficient Belief Propagation

Hardware Efficient Belief Propagation [pdf][code][webpage]
Chia-Kai Liang, Chao-Chung Cheng, Yen-Chieh Lai, Liang-Gee Chen, Homer Chen

Proc. IEEE CVPR 2009, pp. 80-87, 2009.

Fast Belief Propagation Process Element for High-Quality Stereo Estimation

Chao-Chung Cheng, Chia-Kai Liang, Yen-Chieh Lai, Liang-Gee Chen, Homer Chen

Proc. ICASSP'09, pp. 745-748, 2009.

Working with hardware people is a wonderful experience :). They initialize the problem, I deliver the algorithms (on GPU and GPU), and they do the rest (a REAL chip!). My contributions are presented in [CVPR'09]. The chip-level design and anaysis are given in [ICASSP'09] and future publications.

Light Field Processing and Acquisition

Programmable Aperture Photography: Multiplexed Light Field Acquisition
[pdf(high res)][pdf(low res)][webpage]

Chia-Kai Liang, Tai-Hsu Lin, Bing-Yi Wong, Chi Liu (a.k.a Gene Liu), Homer Chen

ACM Trans. Graphics (Proc. SIGGRAPH'08), vol. 27, no. 3, pp. 55:1-55:10, 2008.

Depth Detection of Light Field [webpage]

Y.-H. Kao, Chia-Kai Liang, Li-Wen Chang, Homer Chen

ICASSP'07, vol. 1, pp. 893-897, 2007.

Image Enhancement for Mobile Devices

Image Enhancement for Backlight-Scaled TFT-LCD Displays
Pei-Shan Tsai, Chia-Kai Liang, Tai-Hsiang Huang, and Homer Chen

IEEE Trans CSVT, vol. 19, no. 4, 574-583, Apr. 2009.

Image Quality Enhancement for Low Backlight TFT-LCD Displays [webpage]

Pei-Shan Tsai, Chia-Kai Liang, Homer Chen

ICIP'07, vol. 3, 473-476, 2007.

(My job is supervision in this project)

Rolling Shutter Distortion [abstract] [exhibition]

Analysis and Compensation of Rolling Shutter Effect [preprint]

Chia-Kai Liang, Li-Wen Chang, Homer Chen

IEEE Trans. Image Processing, vol. 17, no. 8, pp. 1323 - 1330, Aug. 2008.

Rolling Shutter Distortion Correction

Chia-Kai Liang, Y.-C. Peng, and Homer Chen

VCIP'05, vol. 5960, pp. 1315-1322, 2005.

Digital Image Stabilization [abstract]

Integration of Digital Stabilizer with Video Codec for Digital Video Cameras [pdf]

2008 IEEE Circuits and Systems Society CSVT Transactions Best Paper Award!!!

Homer Chen, Chia-Kai Liang, Yu-Chun Peng, Huang-An Chang.

IEEE Trans. CSVT, vol. 17, no. 7, pp. 801 - 813, July 2007.

The Effect of Digital Image Stabilization on Coding Performance

Chia-Kai Liang, Yu-Chun Peng, Huang-An Chang, C.-C. Su, Homer Chen

ISIMP'04, pp. 402-405, 2004.

Digital Rights Management [abstract]

Digital Rights Management for DVB-H Mobile TV

Chia-Chu Liu, Chia-Kai Liang, K.-S. Hsu, C.-P. Kuan, Homer Chen

IPDM'06, 2006.

A Robust DRM System on the DVB Multimedia Home Platform

Chia-Kai Liang, Chia-Chu Liu, Homer Chen,

CCNC'06, 2006.

COURSE PROJECTS

Game Programming (with Chihyuan Chuang)

In the final project, we built a complete FPS game system upon the Ogre3D (a scene management engine). We wrote our own BSP rendering and collision and AI systems. Also the PhyX engine is used in this project.

Digital Image Synthesis [link]

Project 1: Octree-R [link] Project 2: Realistic Camera Rendering [link] Project 3: Ward's BRDF [link]

Final project: A cup of drink [link] (with Chihyuan Chuang)

We implemented multiple scattering volume rendering by photon mapping and hazed glass effect. It's a pity that we didn't give enough time to make a good model.

Digital Visual Effect [link] Project 1: HDR Image [link] Project 2: Panorama [link] Project 3: Matchmove [link]

Final project: Image-based Material Editing [link] (with Chihyuan Chuang)

A real-time interactive implementation of the SIGGRAPH'06 paper "Image-based Material Editing." The texture replacement method is also improved.

Convex Optimization

Recover Radiance Map from Photographs and Tone Mapping Methods for Display [pdf]

Computer Graphics (Undergrad project)

Water Animation. (with P.-H. Wu)

We implemented a dynamic water animation system. You can download the phsical simulation result here. The defects in the images are because we implement a traditional (and simple) ray tracing program which can not handle total reflection.

MISC

My cat windy who ran away in summer 2006 :( (gallery)

Last update: July 3, 2009

Chia-Kai Liang

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