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 and video processing, multimedia IP design, and digital rights managements. Here is my Curriculum Vitae (PDF).

USEFUL LINKS

Graphics/Vision 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

* Our camera is reported by the liberty times [link] (Taiwan local press)!!!
* The rolling shutter distortion paper is published in TIP!!!

RESEARCH

Light Field Processing and Acquisition

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

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

ACM Trans. Graphics (Proc. SIGGRAPH'08), to appear.

Light Field Acquisition using Programmable Aperture Camera
[pdf][project page(dated)]

Chia-Kai Liang, Gene Liu, Homer Chen

ICIP'07, vol. 5, pp. 233-236, 2007

Depth Detection of Light Field [project page]

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, accepted

JND-Based Enhancement of Perceptibility for Dim Images

Tai-Hsiang Huang, Chia-Kai Liang, Su-Ling Yeh, Homer Chen

ICIP'08, accepted

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

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.

Analysis and Correction of Rolling Shutter Distortion for CMOS Image Sensor Arrays

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

ISCOM'05, 2005

Rolling Shutter Distortion Correction

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

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

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

Management System for Digital Broadcast Rights and a Method Thereof

US Patent Application 2007/0189530

Digital Video Content Service-license Usage Management Platform

Y.-E. Wu, Chia-Kai Liang, C.-T. Tsao, K.-S. Hsu, and Y.-J. Lin

CCL Technical Journal, pp. 44-52, 2004

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.

Integration of Image Stabilizer and Video Encoder for Digital Video Cameras

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

ISCAS'05, vol. 5, pp. 4871-4874, 2005

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.

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: Aug. 7, 2008

Chia-Kai Liang

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