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Tien-Tsin Wong - IEEE Xplore Author Profile
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Tien-Tsin Wong

Publications
33
Citations
549
Publications by Year
19952024
Co-Authors:
Show All Co-Authors (53)
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Tien-Tsin Wong

Affiliation

Department of Data Science and Artificial Intelligence, Monash University

Publication Topics

Biography

Tien-Tsin Wong (S'95–M'99) received the B.Sc., M.Phil., and Ph.D. degrees in computer science from The Chinese University of Hong Kong in 1992, 1994, and 1998, respectively.,Currently, he is an Associate Professor in the Department of Computer Science & Engineering at The Chinese University of Hong Kong. His main research interest is computer graphics, including image-based modeling, and rendering, medical visualization, natural phenomena modeling, and photorealistic and non-photorealistic rendering. He received the IEEE Transactions on Multimedia Prize Paper Award in 2005 and the Young Researcher Award in 2004.(Based on document published on 10 January 2006).
Publications
33
Citations
549
Publications by Year
19952024
Co-Authors:
Show All Co-Authors (53)
Author's Published Works

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SKETCH2MANGA: Shaded Manga Screening from Sketch with Diffusion Models

Jian Lin;Xueting Liu;Chengze Li;Minshan Xie;Tien-Tsin Wong

2024 IEEE International Conference on Image Processing (ICIP)
Year: 2024 | Conference Paper |
Cited by: Papers (1)
While manga is a popular entertainment form, creating manga is tedious, especially adding screentones to the created sketch, namely manga screening. Unfortunately, there is no existing method that tailors for automatic manga screening, probably due to the difficulty in generating shaded high-frequency screentones of high-quality. Classic manga screening approaches generally require user input to p...Show More

SKETCH2MANGA: Shaded Manga Screening from Sketch with Diffusion Models

Jian Lin;Xueting Liu;Chengze Li;Minshan Xie;Tien-Tsin Wong

Year: 2024 | Conference Paper |

Generating massive high-quality random numbers using GPU

Wai-Man Pang;Tien-Tsin Wong;Pheng-Ann Heng

2008 IEEE Congress on Evolutionary Computation (IEEE World Congress on Computational Intelligence)
Year: 2008 | Conference Paper |
Cited by: Papers (5) | Patents (1)
Pseudo-random number generators (PRNG) have been intensively used in many stochastic algorithms in artificial intelligence, computer graphics and other scientific computing. However, the current commodity GPU design does not facilitate the efficient implementation of high-quality PRNGs that require high-precision integer arithmetics and bitwise operations. In this paper, we propose a framework to ...Show More

Generating massive high-quality random numbers using GPU

Wai-Man Pang;Tien-Tsin Wong;Pheng-Ann Heng

Year: 2008 | Conference Paper |

Recovering consistent video depth maps via bundle optimization

Guofeng Zhang;Jiaya Jia;Tien-Tsin Wong;Hujun Bao

2008 IEEE Conference on Computer Vision and Pattern Recognition
Year: 2008 | Conference Paper |
This paper presents a novel method for reconstructing high-quality video depth maps. A bundle optimization model is proposed to address the key issues, including image noise and occlusions, in stereo reconstruction. Our method not only uses the color constancy constraint, but also explicitly incorporates the geometric coherence constraint associating multiple frames in a video, thus can naturally ...Show More

Recovering consistent video depth maps via bundle optimization

Guofeng Zhang;Jiaya Jia;Tien-Tsin Wong;Hujun Bao

Year: 2008 | Conference Paper |

Dense Photometric Stereo: A Markov Random Field Approach

Tai-Pang Wu;Kam-Lun Tang;Chi-Keung Tang;Tien-Tsin Wong

IEEE Transactions on Pattern Analysis and Machine Intelligence
Year: 2006 | Volume: 28, Issue: 11 | Journal Article |
We address the problem of robust normal reconstruction by dense photometric stereo, in the presence of complex geometry, shadows, highlight, transparencies, variable attenuation in light intensities, and inaccurate estimation in light directions. The input is a dense set of noisy photometric images, conveniently captured by using a very simple set-up consisting of a digital video camera, a reflect...Show More

Dense Photometric Stereo: A Markov Random Field Approach

Tai-Pang Wu;Kam-Lun Tang;Chi-Keung Tang;Tien-Tsin Wong

Year: 2006 | Volume: 28, Issue: 11 | Journal Article |

Parallel Hybrid Genetic Algorithms on Consumer-Level Graphics Hardware

Man-Leung Wong;Tien-Tsin Wong

2006 IEEE International Conference on Evolutionary Computation
Year: 2006 | Conference Paper |
Cited by: Papers (11)
In this paper, we report a parallel Hybrid Genetic Algorithm (HGA) on consumer-level graphics cards. HGA extends the classical genetic algorithm by incorporating the Cauchy mutation operator from evolutionary programming. In our parallel HGA, all steps except the random number generation procedure are performed in Graphics Processing Unit (GPU) and thus our parallel HGA can be executed effectively...Show More

Parallel Hybrid Genetic Algorithms on Consumer-Level Graphics Hardware

Man-Leung Wong;Tien-Tsin Wong

Year: 2006 | Conference Paper |

An RBF-based compression method for image-based relighting

Chi-Sing Leung;Tien-Tsin Wong;Ping-Man Lam;Kwok-Hung Choy

IEEE Transactions on Image Processing
Year: 2006 | Volume: 15, Issue: 4 | Journal Article |
Cited by: Papers (26)
In image-based relighting, a pixel is associated with a number of sampled radiance values. This paper presents a two-level compression method. In the first level, the plenoptic property of a pixel is approximated by a spherical radial basis function (SRBF) network. That means that the spherical plenoptic function of each pixel is represented by a number of SRBF weights. In the second level, we app...Show More

An RBF-based compression method for image-based relighting

Chi-Sing Leung;Tien-Tsin Wong;Ping-Man Lam;Kwok-Hung Choy

Year: 2006 | Volume: 15, Issue: 4 | Journal Article |

Noise-resistant fitting for spherical harmonics

Ping-Man Lam;Chi-Sing Leung;Tien-Tsin Wong

IEEE Transactions on Visualization and Computer Graphics
Year: 2006 | Volume: 12, Issue: 2 | Journal Article |
Cited by: Papers (17)
Spherical harmonic (SH) basis functions have been widely used for representing spherical functions in modeling various illumination properties. They can compactly represent low-frequency spherical functions. However, when the unconstrained least square method is used for estimating the SH coefficients of a hemispherical function, the magnitude of these SH coefficients could be very large. Hence, t...Show More

Noise-resistant fitting for spherical harmonics

Ping-Man Lam;Chi-Sing Leung;Tien-Tsin Wong

Year: 2006 | Volume: 12, Issue: 2 | Journal Article |

Intelligent inferencing and haptic simulation for Chinese acupuncture learning and training

P.-A. Heng;Tien-Tsin Wong;Rong Yang;Yim-Pan Chui;Yong Ming Xie;Kwong-Sak Leung;Ping-Chung Leung

IEEE Transactions on Information Technology in Biomedicine
Year: 2006 | Volume: 10, Issue: 1 | Journal Article |
Cited by: Papers (48)
This paper presents an intelligent virtual environment for Chinese acupuncture learning and training using state-of-the-art virtual reality technology. It is the first step toward developing a comprehensive virtual human model for studying Chinese medicine. Students can learn and practice acupuncture in the proposed 3-D interactive virtual environment that supports a force feedback interface for n...Show More

Intelligent inferencing and haptic simulation for Chinese acupuncture learning and training

P.-A. Heng;Tien-Tsin Wong;Rong Yang;Yim-Pan Chui;Yong Ming Xie;Kwong-Sak Leung;Ping-Chung Leung

Year: 2006 | Volume: 10, Issue: 1 | Journal Article |

A Spectral Clustering Approach to fMRI Activation Detection

Lin Shi;Pheng Ann Heng;Tien-Tsin Wong

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference
Year: 2005 | Conference Paper |
Conventional clustering methods for fMRI activation detection implicitly assume that data scatter in clusters with certain shapes. But this assumption is inconsistent with the general reality in fMRI data, and will consequently achieve detection results with higher false alarm rate. To solve this problem, we propose an alternative clustering method, namely spectral cluster analysis (SCA), which us...Show More

A Spectral Clustering Approach to fMRI Activation Detection

Lin Shi;Pheng Ann Heng;Tien-Tsin Wong

Year: 2005 | Conference Paper |

Parallel evolutionary algorithms on graphics processing unit

Man-Leung Wong;Tien-Tsin Wong;Ka-Ling Fok

2005 IEEE Congress on Evolutionary Computation
Year: 2005 | Conference Paper |
Cited by: Papers (28)
Evolutionary algorithms (EAs) are effective and robust methods for solving many practical problems such as feature selection, electrical circuit synthesis, and data mining. However, they may execute for a long time for some difficult problems, because several fitness evaluations must be performed. A promising approach to overcome this limitation is to parallelize these algorithms. In this paper, w...Show More

Parallel evolutionary algorithms on graphics processing unit

Man-Leung Wong;Tien-Tsin Wong;Ka-Ling Fok

Year: 2005 | Volume: 3 | Conference Paper |

Functional MRI activation detection using genetic K-means clustering

Lin Shi;Heng;Tien-Tsin Wong

2005 International Conference on Machine Learning and Cybernetics
Year: 2005 | Conference Paper |
Cited by: Papers (1)
We propose a novel clustering approach to fMRI activation detection using a genetic K-means algorithm, which is more likely to find a global optimal solution to the K-means clustering, and is independent of the initial assignments of the cluster centroids. The experiments show that the proposed method solves fMRI activation detection problem with higher accuracy than ordinary K-means clustering.Show More

Functional MRI activation detection using genetic K-means clustering

Lin Shi;Heng;Tien-Tsin Wong

Year: 2005 | Volume: 3 | Conference Paper |

Dense photometric stereo using tensorial belief propagation

Kam-Lun Tang;Chi-Keung Tang;Tien-Tsin Wong

2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05)
Year: 2005 | Conference Paper |
Cited by: Papers (14)
We address the normal reconstruction problem by photometric stereo using a uniform and dense set of photometric images captured at fixed viewpoint. Our method is robust to spurious noises caused by highlight and shadows and non-Lambertian reflections. To simultaneously recover normal orientations and preserve discontinuities, we model the dense photometric stereo problem into two coupled Markov ra...Show More

Dense photometric stereo using tensorial belief propagation

Kam-Lun Tang;Chi-Keung Tang;Tien-Tsin Wong

Year: 2005 | Volume: 1 | Conference Paper |

A system for real-time panorama generation and display in tele-immersive applications

Wai-Kwan Tang;Tien-Tsin Wong;P.-A. Heng

IEEE Transactions on Multimedia
Year: 2005 | Volume: 7, Issue: 2 | Journal Article |
Cited by: Papers (40)
Wide field-of-view (FOV) is necessary for many industrial applications, such as air traffic control, large vehicle driving and navigation. Unfortunately, the supporting structure/frame in most systems usually blocks part of the view, results in "blind spot" and raises the risk to the pilot. In this paper, we introduce a video-based tele-immersive system, called the immersive cockpit. It captures l...Show More

A system for real-time panorama generation and display in tele-immersive applications

Wai-Kwan Tang;Tien-Tsin Wong;P.-A. Heng

Year: 2005 | Volume: 7, Issue: 2 | Journal Article |

Compressing the illumination-adjustable images with principal component analysis

Pun-Mo Ho;Tien-Tsin Wong;Chi-Sing Leung

IEEE Transactions on Circuits and Systems for Video Technology
Year: 2005 | Volume: 15, Issue: 3 | Journal Article |
The ability to change illumination is a crucial factor in image-based modeling and rendering. Image-based relighting offers such capability. However, the tradeoff is the enormous increase of storage requirement. In this paper, we propose a compression scheme that effectively reduces the data volume while maintaining the real-time relighting capability. The proposed method is based on principal com...Show More

Compressing the illumination-adjustable images with principal component analysis

Pun-Mo Ho;Tien-Tsin Wong;Chi-Sing Leung

Year: 2005 | Volume: 15, Issue: 3 | Journal Article |

A real-time Cantonese text-to-audiovisual speech synthesizer

Jian-Qing Wang;Ka-Ho Wong;Pheng-Ann Pheng;H.M. Meng;Tien-Tsin Wong

2004 IEEE International Conference on Acoustics, Speech, and Signal Processing
Year: 2004 | Conference Paper |
Cited by: Papers (2)
This paper describes the design and development of a Cantonese TTVS synthesizer, which can generate highly natural synthetic speech that is precisely time-synchronized with a real-time 3D face rendering. Our Cantonese TTVS synthesizer utilizes a homegrown Cantonese syllable-based concatenative text-to-speech system named CU VOCAL. This paper describes the extension of CU VOCAL to output syllable l...Show More

A real-time Cantonese text-to-audiovisual speech synthesizer

Jian-Qing Wang;Ka-Ho Wong;Pheng-Ann Pheng;H.M. Meng;Tien-Tsin Wong

Year: 2004 | Volume: 1 | Conference Paper |

Estimating light vectors in real time

Wai-Man Pang;Tien-Tsin Wong;Pheng-Ann Heng

IEEE Computer Graphics and Applications
Year: 2004 | Volume: 24, Issue: 3 | Magazine Article |
Cited by: Papers (1)
Capturing the appearance of objects under different lighting conditions is useful in texture acquisition, bidirectional reflectance distribution function (BRDF) measurement, and image-based data acquisition. With the acquired data, we can render virtual objects realistically. During the data capture, we must record both the radiance and the light vector. Measuring the light vector is not necessari...Show More

Estimating light vectors in real time

Wai-Man Pang;Tien-Tsin Wong;Pheng-Ann Heng

Year: 2004 | Volume: 24, Issue: 3 | Magazine Article |

Binary-space-partitioned images for resolving image-based visibility

C.-W. Fu;Tien-Tsin Wong;Wai-Shun Tong;Chi-Keung Tang;A.J. Hanson

IEEE Transactions on Visualization and Computer Graphics
Year: 2004 | Volume: 10, Issue: 1 | Journal Article |
We propose a novel 2D representation for 3D visibility sorting, the binary-space-partitioned image (BSPI), to accelerate real-time image-based rendering. BSPI is an efficient 2D realization of a 3D BSP tree, which is commonly used in computer graphics for time-critical visibility sorting. Since the overall structure of a BSP tree is encoded in a BSPI, traversing a BSPI is comparable to traversing ...Show More

Binary-space-partitioned images for resolving image-based visibility

C.-W. Fu;Tien-Tsin Wong;Wai-Shun Tong;Chi-Keung Tang;A.J. Hanson

Year: 2004 | Volume: 10, Issue: 1 | Journal Article |

A virtual-reality training system for knee arthroscopic surgery

P.-A. Heng;Chun-Yiu Cheng;Tien-Tsin Wong;Yangsheng Xu;Yim-Pan Chui;Kai-Ming Chan;Shiu-Kit Tso

IEEE Transactions on Information Technology in Biomedicine
Year: 2004 | Volume: 8, Issue: 2 | Journal Article |
Cited by: Papers (78)
Surgical training systems based on virtual-reality (VR) simulation techniques offer a cost-effective and efficient alternative to traditional training methods. This paper describes a VR system for training arthroscopic knee surgery. Virtual models used in this system are constructed from the Visual Human Project dataset. Our system simulates soft tissue deformation with topological change in real-...Show More

A virtual-reality training system for knee arthroscopic surgery

P.-A. Heng;Chun-Yiu Cheng;Tien-Tsin Wong;Yangsheng Xu;Yim-Pan Chui;Kai-Ming Chan;Shiu-Kit Tso

Year: 2004 | Volume: 8, Issue: 2 | Journal Article |

Compression of illumination-adjustable images

Tien-Tsin Wong;Chi-Sing Leung

IEEE Transactions on Circuits and Systems for Video Technology
Year: 2003 | Volume: 13, Issue: 11 | Journal Article |
The image-based modeling and rendering (IBMR) approaches allow the time complexity of synthesizing novel images to be independent of scene complexity. Unfortunately, illumination control (relighting) is no longer trivial under the image-based framework. To relight the image-based scenery, the scene must be captured under various illumination conditions. This drastically increases the data volume. ...Show More

Compression of illumination-adjustable images

Tien-Tsin Wong;Chi-Sing Leung

Year: 2003 | Volume: 13, Issue: 11 | Journal Article |

PCA-based compression for image-based relighting

Pun-Mo Ho;Tien-Tsin Wong;Kwok-Hung Choy;Chi Sing Leung

2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698)
Year: 2003 | Conference Paper |
Cited by: Papers (1)
The ability to change illumination is a crucial factor in image-based modeling and rendering. Image-based relighting offers such capability. However, the trade-off is the enormous increase of storage requirement. In this paper, we propose a compression scheme that effectively reduces the data volume while maintaining the real-time relighting capability. The proposed method is based on principal co...Show More

PCA-based compression for image-based relighting

Pun-Mo Ho;Tien-Tsin Wong;Kwok-Hung Choy;Chi Sing Leung

Year: 2003 | Volume: 1 | Conference Paper |

Data compression for a massive image data set in IBMR

Chi Sing Leung;Ping Man Lam;Tien-Tsin Wong

Proceedings Computer Graphics International 2003
Year: 2003 | Conference Paper |
In the area of image-based modeling and rendering (IBMR), a new scene under a novel illumination condition is synthesized by interpolating reference images. However, for good quality rendering tremendous reference images under various illumination conditions are required. We present a two-level compression method for reference images. In the first level, the spherical harmonic transform is used to...Show More

Data compression for a massive image data set in IBMR

Chi Sing Leung;Ping Man Lam;Tien-Tsin Wong

Year: 2003 | Conference Paper |

Practical super-resolution from dynamic video sequences

Zhongding Jiang;Tien-Tsin Wong;Hujun Bao

2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings.
Year: 2003 | Conference Paper |
This paper introduces a practical approach for superresolution, the process of reconstructing a high-resolution image from the low-resolution input ones. The emphasis of our work is to super-resolve frames from dynamic video sequences, which may contain significant object occlusion or scene changes. As the quality of super-resolved images highly relies on the correctness of image alignment between...Show More

Practical super-resolution from dynamic video sequences

Zhongding Jiang;Tien-Tsin Wong;Hujun Bao

Year: 2003 | Volume: 2 | Conference Paper |

Image-based relighting as the sampling and reconstruction of the plenoptic illumination function

Tien-Tsin Wong

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).
Year: 2003 | Conference Paper |
Cited by: Papers (1)
Image-based modeling and rendering has been demonstrated as a cost-effective and efficient approach to real-time graphics systems. In this paper, we describe an extended formulation of the plenoptic function, called the plenoptic illumination function, which explicitly specifies the illumination component. Techniques based on it can be extended to support relighting as well as view interpolation. ...Show More

Image-based relighting as the sampling and reconstruction of the plenoptic illumination function

Tien-Tsin Wong

Year: 2003 | Volume: 4 | Conference Paper |

The plenoptic illumination function

Tien-Tsin Wong;Chi-Wing Fu;Pheng-Arm Heng;Chi-Sing Leung

IEEE Transactions on Multimedia
Year: 2002 | Volume: 4, Issue: 3 | Journal Article |
Cited by: Papers (40)
Image-based modeling and rendering has been demonstrated as a cost-effective and efficient approach to virtual reality applications. The computational model that most image-based techniques are based on is the plenoptic function. Since the original formulation of the plenoptic function does not include illumination, most previous image-based virtual reality applications simply assume that the illu...Show More

The plenoptic illumination function

Tien-Tsin Wong;Chi-Wing Fu;Pheng-Arm Heng;Chi-Sing Leung

Year: 2002 | Volume: 4, Issue: 3 | Journal Article |

Relighting with the reflected irradiance field: representation, sampling and reconstruction

Zouchen Lin;Tien-Tsin Wong;Heung-Yeung Shum

Proceedings of the 2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. CVPR 2001
Year: 2001 | Conference Paper |
Cited by: Papers (5)
Image-based relighting (IBL) is a technique to change the illumination of an image-based object/scene. In this paper, we define a representation called the reflected irradiance field which records the reflection from an object surface irradiated by a point light source that moves on a plane. This representation is dual to that of the light field. It synthesizes a novel image under a different illu...Show More

Relighting with the reflected irradiance field: representation, sampling and reconstruction

Zouchen Lin;Tien-Tsin Wong;Heung-Yeung Shum

Year: 2001 | Volume: 1 | Conference Paper |

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