Publications

 

2011

“Smoothly Varying Affine Stitiching",

W. Y. Lin, S. Liu, Y. Matsushita, T.-T. Ng, L. F. Cheong

IEEE Conference on Computer Vision and Pattern Recognition (CVPR),

June 2011.

[pdf 9MB]


“Markovian Rake Transform for Digital Image Tampering Detection",

P. Sutthiwan, Y.-Q. Shi, H. Zhao, T.-T. Ng, W. Su

Transaction on Data Hiding and Multimedia Security

2011.


“On the Duality of Forward and Inverse Light Transport”

M. Chandraker, J. Bai, T.-T. Ng, and R. Ramamoorthi,

IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI),

2011.

[pdf 4MB]


“From the Rendering Equation to Stratified Light Transport Inversion”

T.-T. Ng, R. S. Pahwa, J. Bai, K.-H. Tan and R. Ramamoorthi,

International Journal on Computer Vision (IJCV),

2011.

[pdf 11MB]


“Compressive Inverse Light Transport”

  1. X.Chu, T.-T. Ng, R. S. Pahwa, T. Q.-S. Quek, T. Huang,

British Machine Vision Conference (BMVC),

Aug 2011.

[pdf 1.3MB] [Supplementary] [Poster]


“Distinguishing Photographic Images and Photorealistic Computer Graphics Using Visual Vocabulary on Local Image Edges”

  1. R.Zhang, R. Wang, T.-T. Ng,

International Workshop on Digital-forensics and Watermarking (IWDW),

Oct 2011.

"Camera Response Function Signature for Digital Forensics – Part I: Theory and Data Selection",

T.-T. Ng, M.-P. Tsui,

IEEE Workshop on Information Forensics and Security (WIFS),

Dec. 2009.

[pdf 1.1MB] [bib]



"Camera Response Function Signature for Digital Forensics – Part II: Signature Extraction",

T.-T. Ng,

IEEE Workshop on Information Forensics and Security (WIFS),

Dec. 2009.

[pdf 6.9MB] [bib]



"Radiometric Calibration Using Stratified Inverses",

T.-T. Ng, R. S. Pahwa, K.-H. Tan, J. Bai, T. Q.-S. Quek,

IEEE International Conference on Computer Vision (ICCV),

Sept. 2009.

[pdf 1.4MB] [bib] [project page]



"Identifying and Prefiltering Images",

T.-T. Ng, S.-F. Chang,

IEEE Signal Processing Magazine (SPM), pp. 49-58,

March 2009.

[pdf] [bib]

“Recaptured Photo Detection Using Specularity Distribution",

H. Yu, T.-T. Ng, Q. Sun,

IEEE International Conference on Image Processing (ICIP),

Oct. 2008.

[pdf 426KB] [bib]

"A Model for Image Splicing",

T.-T. Ng, S.-F. Chang,

IEEE International Conference on Image Processing (ICIP),

Oct. 2004.

[pdf] [bib] [slides]



"Blind Detection of Photomontage Using Higher Order Statistics",

T.-T. Ng, S.-F. Chang, Q. Sun,

IEEE International Symposium on Circuits and Systems (ISCAS),

May 2004.

[pdf] [bib] [slides]



"Blind Detection of Photomontage Using Higher Order Statistics",

T.-T. Ng, S.-F. Chang,

ADVENT Technical Report, #201-2004-1, Columbia University,

June 2004.

[pdf] [bib]



"A Data Set of Authentic and Spliced Image Blocks",

T.-T. Ng, S.-F. Chang,

ADVENT Technical Report, #203-2004-3, Columbia University,

June 2004.

[pdf] [bib]


"Classifying Photographic and Photorealistic Computer Graphic Images using Natural Image Statistics",

T.-T. Ng, S.-F. Chang,

ADVENT Technical Report, #220-2006-6, Columbia University,

Oct. 2004.

[pdf] [bib]


"Predicting Optimal Operation of MC-3DSBC Multi-dimensional Scalable Video Coding using Subjective Quality Measurement",

Y. Wang, T.-T. Ng, M. van der Schaar, S.-F. Chang,

SPIE Video Communications and Image Processing (VCIP),

Jan 2004.

[pdf] [bib]





"Physics-Motivated Features for Distinguishing Photographic Images and Computer Graphics",

T.-T. Ng, S.-F. Chang, Y.-F. Hsu, L. Xie, M.-P. Tsui,

ACM Multimedia (ACMMM),

November 2005.

[pdf] [bib] [slides]



"Columbia Photographic Images and Photorealistic Computer Graphics Dataset",

T.-T. Ng, S.-F. Chang, Y.-F. Hsu, M. Pepeljugoski,

ADVENT Technical Report, #203-2004-3, Columbia University,

Feb. 2005.

[pdf] [bib]



"Automated Content-based Image Retrieval",

T.-T. Ng,

M.Phil. Thesis, Department of Engineering, Cambridge University,

Oct 2000.

[pdf] [bib]



"Content Based Image Retrieval through Object Extraction and Querying"

A. H. Kam, T.-T. Ng, N. G. Kingsbury, W. J. Fitzgerald,

IEEE Workshop on Content-based Access of Image and Video Libraries (CBAIVL),

June 2000.

[pdf] [bib]

© 2009 Tian-Tsong Ng

Copyright: This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

Disclaimer : I am personally responsible for any content and opinion posted on this homepage. Institute for  Infocomm Research is not responsible for any contents found on this homepage or any opinion expressed herein. 

“From the Rendering Equation to Stratified Light Transport Inversion”

T.-T. Ng, R. S. Pahwa, J. Bai, K.-H. Tan and R. Ramamoorthi,

EECS Department, University of California, Berkeley,

Tech. Rep. UCB/EECS-2010-141,

Nov 2010.



“A Dual Theory of Inverse and Forward Light Transport”

J. Bai, M. Chandraker, T.-T. Ng, and R. Ramamoorthi,

EECS Department, University of California, Berkeley,

Tech. Rep. UCB/EECS-2010-101,

June 2010.



"A Dual Theory of Inverse and Forward Light Transport",

J. Bai, M. Chandraker, T.-T. Ng, and R. Ramamoorthi,

European Conference on Computer Vision (ECCV),

Sept 2010.

[pdf 7.2MB] [bib] [project page]



"Shape from Second-bounce of Light Transport",

S. Liu, T.-T. Ng, and Y. Matsushita,

European Conference on Computer Vision (ECCV),

Sept 2010.

[pdf 2.3MB] [bib]



"A Smart Phone Image Database for Single Image Recapture Detection",

X. Gao, Q. Bo, J. Shen, T.-T. Ng, Y.-Q. Shi,

International Workshop on Digital Watermarking (IWDW)

Oct 2010.

[pdf 4.8MB] [bib]



"Single-View Recaptured Image Detection Based On Physics-Based Features",

X. Gao, T.-T. Ng, Q. Bo, S.-F. Chang,

IEEE International Conference on Multimedia & Expo (ICME)

July 2010.

[pdf 148KB] [bib]



"Is Physics-based Liveness Detection Truly Possible with a Single Image?",

J. Bai, T.-T. Ng, X. Gao, and Y.-Q. Shi,

IEEE International Symposium on Circuits and Systems (ISCAS),

May 2010.

[pdf 647KB] [bib]



"Rake Transform And Edge Statistics For Image Forgery Detection",

P. Sutthiwan, Y.-Q. Shi, W. Su, and T.-T. Ng,

IEEE International Conference on Multimedia & Expo (ICME)

July 2010.

[pdf 426KB] [bib]



"New Developments in Color Image Tampering Detection",

P. Sutthiwan, Y.-Q. Shi, J. Dong, W. Wang, T. Tan, T.-T. Ng,

IEEE International Symposium on Circuits and Systems (ISCAS),

May 2010.

[pdf 352KB] [bib]



"Factorization towards a Classifier",

Q. Chen, S. Yan, and T.-T. Ng,

IEEE Conference on Computer Vision and Pattern Recognition (CVPR),

June 2010.

[bib]

2010

2009

2008

2007

"Using Geometry Invariants for Camera Response Function Estimation",

T.-T. Ng, S.-F. Chang, M.-P. Tsui,

IEEE Conference on Computer Vision and Pattern Recognition (CVPR),

June 2007.

[pdf] [bib]


"Statistical and Geometric Methods for Passive-blind Image Forensics",

T.-T. Ng,

PhD Thesis, Graduate School of Arts and Sciences, Columbia University,

May 2007.

[pdf] [bib]


"Lessons Learned from Online Classification of Photo-Realistic Computer Graphics and Photographs",

T.-T. Ng, S.-F. Chang, M.-P. Tsui,

IEEE Workshop on Signal Processing Applications for Public Security and Forensics (SAFE),

Apr. 2007.

[pdf] [bib]

2004

2006

"Passive-blind Image Forensics"

T.-T. Ng, S.-F. Chang, C.-Y. Lin, Q. Sun,

Multimedia Security Technologies for Digital Rights, pp. 111--137, Elsvier,

2006.

[pdf] [bib]


"An Online System for Classifying Computer Graphics Images from Natural Photographs",

T.-T. Ng, S.-F. Chang,

SPIE Electronic Imaging,

Jan. 2006.

[pdf] [bib] [slides]

2005

2000

"A Practical Watermarking Scheme Aligned with Compressed-Domain CIF-to-QCIF Video Transcoding",

D. He, T.-T. Ng, Z. Zhang, Q. Sun

IEEE International Conference Information, Communication and Signal Processing

Dec 2003.

2003

2014

“An Automated Estimator of Image Visual Realism Based on Human Cognition”,

S. Fan, T.-T. Ng, J. Herbert, B. Koenig, C. Tan, R. Wang

IEEE Conference on Computer Vision and Pattern Recognition (CVPR)

June 2014.

[pdf 24MB]


“Multi-modal Feature Fusion for Action Recognition in RGB-D Sequences”,

A. Shahroudy, G. Wang, T.-T. Ng,

IEEE International Symposium on Communications, Control, and Signal Processing (ISCCSP)

May 2014.

[pdf 0.4MB]


“Epitomic Image Colorization”,

Y. Yang, X. Chu, T.-T. Ng, A. Chia, J. Yang, H. Jin, T. Huang

IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

May 2014.

[pdf 5.1MB]


“Human Perception of Visual Realism for Photo and Computer-generated Face Images",

S. Fan, T.-T. Ng, J. Herbert, B. Koenig, C. Tan, R. Wang

ACM Transaction on Applied Perception (TAP) (under review),

2014



2013

2012

“Real or Fake? Human judgments about photographs and computer-generated images of faces”,

S. Fan, T.-T. Ng, J. Herbert, B. Koenig, X. Shi

Technical Brief, ACM Siggraph Asia,

Nov 2012.

[pdf 4MB] [Video 5MB]


“Discrimination of computer synthesized or recaptured images from real images”,

T.-T. Ng, S.-F. Chang, 

Book Chapter, Digital Image Forensics, Springer,

2012.

[pdf 11MB]


“Reconstruction of Depth and Normals from Interreflections”,

B.-S. Hua, T.-T. Ng, K.-L. Low

IEEE International Conference on Image Processing (ICIP),

Oct 2013.

[pdf 0.3MB]