Hwann-Tzong Chen

Professor
Department of Computer Science
National Tsing Hua University
101, Kuang Fu Road, Section 2
Hsing Chu, 300 Taiwan

Office: 625 Delta Building
Phone: +886-3-5731309
Email:
Lab: 741 & 742 Delta Building

caricature by Joe Fu


Research Interests

Computer Vision, Image Processing, Machine Learning

Teaching

Spring 2024
Introduction to Programming I
Microsoft Teams online lecture Tuesday evening 6:30-9:20pm
Previous Courses
The Cutting Edge of Deep Learning: CEDL 2017, CEDL 2016
Introduction to Programming: Course materials on Colab and i2p-nthu github (in Chinese)
CS I2P-1 2023 CS I2P-1 2022, CS I2P-1 2021, CS I2P-1 2020, CS I2P-1 2019s, CS I2P-1 2018, EECS I2P 2017, CS I2P-1 2017, EECS I2P 2016, CS I2P-1 2016, EECS 2015, CS I2P-1 2015, EECS 2014, CS I2P-1 2014, Online Course 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006
Introduction to Programming (II): Course materials on Colab and i2p-nthu github (in Chinese)
CS I2P-2 2023 CS I2P-2 2022 CS I2P-2 2021, CS I2P-2 2020, CS I2P-2 2019, CS I2P-2 2018, CS I2P-2 2017, CS I2P-2 2016, CS I2P-2 2015
Advanced Image Processing: 2012, 2011, 2010, 2009, 2008, 2007
Statistical Learning Theory: 2013, 2011, 2010, 2009
Graphical Models and Applications: 2013
Computer Vision for Visual Effects: 2019 2018 2017 2016 2015 2014
Computer Vision 2019
Fun Programming: 2015 2014
Seminar in Information Systems and Applications: 2013s, 2012a, 2012s, 2011a, 2011s, 2010a, 2010s, 2009a, 2009s, 2008a, 2008s, 2007a


Publications

Journal
Bridging the Gap Between Computational Photography and Visual Recognition
Rosaura G. VidalMata, Sreya Banerjee, Brandon RichardWebster, Michael Albright, Pedro Davalos, Scott McCloskey, Ben Miller, Asong Tambo, Sushobhan Ghosh, Sudarshan Nagesh, Ye Yuan, Yueyu Hu, Junru Wu, Wenhan Yang, Xiaoshuai Zhang, Jiaying Liu, Zhangyang Wang, Hwann-Tzong Chen, Tzu-Wei Huang, Wen-Chi Chin, Yi-Chun Lin, Mahmoud Lababidi, Charles Otto, Walter J. Scheirer
IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI), 2021 [arXiv:1901.09482]
SwipeCut: Interactive Segmentation via Seed Grouping
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
IEEE Transactions on Circuits and Systems for Video Technology, 2020 [link to final version] [arXiv:1812.07260]
Toward a Unified Scheme for Fast Interactive Segmentation
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
Journal of Visual Communication and Image Representation, 2018 [link to final version]
Interactive 1-bit Feedback Segmentation Using Transductive Inference
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
Machine Vision and Applications, Online March 2018 [link to final version]
Unsupervised Scene Segmentation Using Sparse Coding Context
Yen-Cheng Liu and Hwann-Tzong Chen
Machine Vision and Applications, Online December 2011 [ link to final version] [self-archiving]
Tone Reproduction: A Perspective from Luminance-Driven Perceptual Grouping
Hwann-Tzong Chen, Tyng-Luh Liu, and Chiou-Shann Fuh
Iternational Journal of Computer Vision (IJCV), October 2005
Real-Time Tracking Using Trust-Region Methods
Tyng-Luh Liu and Hwann-Tzong Chen
IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI), vol. 26, no. 3, pp. 397--402, March 2004 [pdf]

Conference, Workshop, arXiv
Seg2Reg: Differentiable 2D Segmentation to 1D Regression Rendering for 360 Room Layout Reconstruction
Cheng Sun, Wei-En Tai, Yu-Lin Shih, Kuan-Wei Chen, Yong-Jing Syu, Kent Selwyn The, Yu-Chiang Frank Wang, Hwann-Tzong Chen
CVPR 2024 [paper] [arXiv:2311.18695] [github repo]
Mask2Hand: Learning to Predict the 3D Hand Pose and Shape from Shadow
Li-Jen Chang, Yu-Cheng Liao, Chia-Hui Lin, Shih-Fang Yang-Mao, Hwann-Tzong Chen
APSIPA 2023 [paper] [arXiv:2205.15553] [github repo]
Hashing Neural Video Decomposition with Multiplicative Residuals in Space-Time
Cheng-Hung Chan, Cheng-Yang Yuan, Cheng Sun, and Hwann-Tzong Chen
ICCV 2023 [arXiv;2309.14022] [github repo] [project]
Shape-Guided Dual-Memory Learning for 3D Anomaly Detection
Yu-Min Chu, Chieh Liu, Ting-I Hsieh, Hwann-Tzong Chen, and Tyng-Luh Liu
ICML 2023 [paper] [github repo]
Improved Direct Voxel Grid Optimization for Radiance Fields Reconstruction
Cheng Sun, Min Sun, and Hwann-Tzong Chen
[arXiv:2206.05085] [code of torch_efficient_distloss] [code of DirectVoxGO]
Multiview Regenerative Morphing with Dual Flows
Chih-Jung Tsai, Cheng Sun, and Hwann-Tzong Chen
ECCV 2022 [arXiv:2208.01287] [github repo] [project page]
Direct Voxel Grid Optimization: Super-fast Convergence for Radiance Fields Reconstruction
Cheng Sun, Min Sun, and Hwann-Tzong Chen
CVPR 2022 [CVF open access] [arXiv:2111.11215] [improved version] [github repo] [project]
Self-supervised 360∘ Room Layout Estimation
Hao-Wen Ting, Cheng Sun, and Hwann-Tzong Chen
[arXiv:2203.16057] [github repo]
Pose Adaptive Dual Mixup for Few-Shot Single-View 3D Reconstruction
Ta-Ying Cheng, Hsuan-Ru Yang, Niki Trigoni, Hwann-Tzong Chen, and Tyng-Luh Liu
AAAI 2022 [arXiv:2112.12484]
Is CNN Really Looking at Your Face?
Hiroya Kawai, Takashi Kozu, Koichi Ito, Hwann-Tzong Chen, and Takafumi Aoki
ACPR 2021
Specialize and Fuse: Pyramid Output Representation for Semantic Segmentation
Chi-Wei Hsiao, Cheng Sun, Hwann-Tzong Chen, and Min Sun
ICCV 2021 [arXiv:2108.01866]
Moving in a 360 World: Synthesizing Panoramic Parallaxes from a Single Panorama
Ching-Yu Hsu, Cheng Sun, and Hwann-Tzong Chen
[arXiv:2106.10859] [github repo] [project]
HoHoNet: 360 Indoor Holistic Understanding with Latent Horizontal Features
Cheng Sun, Min Sun, and Hwann-Tzong Chen
CVPR 2021 [pdf] [arXiv:2011.11498] [github repo]
Indoor Panorama Planar 3D Reconstruction via Divide and Conquer
Cheng Sun, Chi-Wei Hsiao, Ning-Hsu Wang, Min Sun, and Hwann-Tzong Chen
CVPR 2021 [pdf] [github repo]
DropLoss for Long-Tail Instance Segmentation
Ting-I Hsieh*, Esther Robb*, Hwann-Tzong Chen, and Jia-Bin Huang
AAAI 2021 [project page] [arXiv:2104.06402] [github repo]
Text-Guided Graph Neural Networks for Referring 3D Instance Segmentation
Pin-Hao Huang*, Han-Hung Lee*, Hwann-Tzong Chen, and Tyng-Luh Liu
AAAI 2021 [paper link [github repo]
Learning Camera-Aware Noise Models
Ke-Chi Chang, Ren Wang, Hung-Jin Lin, Yu-Lun Liu, Chia-Ping Chen, Yulin Chang, and Hwann-Tzong Chen
ECCV 2020 [pdf] [arXiv:2008.09370] [github repo]
Silhouette-Net: 3D Hand Pose Estimation from Silhouettes
Kuo-Wei Lee, Shih-Hung Liu, Hwann-Tzong Chen, and Koichi Ito
[arXiv:1912.12436]
One-Shot Object Detection with Co-Attention and Co-Excitation
Ting-I Hsieh, Yi-Chen Lo, Hwann-Tzong Chen, and Tyng-Luh Liu
NeurIPS 2019 [pdf] [arXiv:1911.12529] [github repo]
Point-to-Point Video Generation
Tsun-Hsuang Wang, Yen-Chi Cheng, Chieh Hubert Lin, Hwann-Tzong Chen, and Min Sun
ICCV 2019 [arXiv:1904.02912] [github repo] [project]
COCO-GAN: Generation by Parts via Conditional Coordinating
Chieh Hubert Lin, Chia-Che Chang , Yu-Sheng Chen, Da-Cheng Juan, Wei Wei, and Hwann-Tzong Chen
ICCV 2019 [arXiv:1904.00284] [github repo] [project]
See-through-Text Grouping for Referring Image Segmentation
Ding-Jie Chen, Songhao Jia, Yi-Chen Lo, Hwann-Tzong Chen, and Tyng-Luh Liu
ICCV 2019 [pdf]
Learning Dense Correspondences for Video Objects
Wen-Chi Chin, Zih-Jian Jhang, Hwann-Tzong Chen, and Koichi Ito
ICIP 2019 [pdf]
C2S2: Cost-aware Channel Sparse Selection for Progressive Network Pruning
Chih-Yao Chiu, Hwann-Tzong Chen, and Tyng-Luh Liu
[arXiv:1904.03508]
Flat2Layout: Flat Representation for Estimating Layout of General Room Types
Chi-Wei Hsiao, Cheng Sun, Min Sun, and Hwann-Tzong Chen
[arXiv:1905.12571]
HorizonNet: Learning Room Layout with 1D Representation and Pano Stretch Data Augmentation
Cheng Sun, Chi-Wei Hsiao, Min Sun, and Hwann-Tzong Chen
CVPR 2019 [arXiv:1901.03861] [github]
Instance-Level Meta Normalization
Songhao Jia, Ding-Jie Chen, and Hwann-Tzong Chen
CVPR 2019 [arXiv:1904.03516] [github]
Unsupervised Meta-learning of Figure-Ground Segmentation via Imitating Visual Effects
Ding-Jie Chen, Jui-Ting Chien, Hwann-Tzong Chen, and Tyng-Luh Liu
AAAI 2019 [arXiv:1812.08442]
Attentive and Adversarial Learning for Video Summarization
Tsu-Jui Fu, Shao-Heng Tai, and Hwann-Tzong Chen
WACV 2019 [pdf] [github repo][project]
Non-local RoI for Cross-Object Perception
Shou-Yao Tseng, Hwann-Tzong Chen, Shao-Heng Tai, and Tyng-Luh Liu
NeurIPS 2018 Workshop on Relational Representation Learning arXiv:1811.10002
A2A: Attention to Attention Reasoning for Movie Question Answering
Chao-Ning Liu, Ding-Jie Chen, Hwann-Tzong Chen, and Tyng-Luh Liu
ACCV 2018 [pdf]
Escaping from Collapsing Modes in a Constrained Space
Chia-Che Chang, Chieh Hubert Lin, Da-Cheng Juan, Wei Wei, Che-Rung Lee, and Hwann-Tzong Chen
ECCV 2018 [pdf]
[arXiv:1808.07258] [BEGAN-CS github repo]
Non-local RoIs for Instance Segmentation
Shou-Yao Roy Tseng, Hwann-Tzong Chen, Shao-Heng Tai, and Tyng-Luh Liu
[arXiv:1807.05361] [related github repo]
Performance Evaluation of Age Estimation from T1-Weighted Images Using Brain Local Features and CNN
Koichi Ito, Ryuichi Fujimoto, Tzu-Wei Huang, Hwann-Tzong Chen, Kai Wu, Kazunori Sato, Yasuyuki Taki, Hiroshi Fukuda, Takafumi Aoki
EMBC 2018
Tap and Shoot Segmentation
Ding-Jie Chen, Jui-Ting Chien, Hwann-Tzong Chen, and Long-Wen Chang
AAAI 2018 [pdf]
Video Object Segmentation via Cellular Automata Refinement
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
ACPR 2017 [pdf]
Detecting Nonexistent Pedestrians
Jui-Ting Chien, Chia-Jung Chou, Ding-Jie Chen, and Hwann-Tzong Chen
[project] (ICCV Workshop CVRSUAD 2017)
Self Adversarial Training for Human Pose Estimation
Chia-Jung Chou, Jui-Ting Chien, and Hwann-Tzong Chen
[arXiv:1707.02439] [code]
Video Segmentation via Boundary-Aware Flow
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
ICIP 2017 [pdf]
Chess Recognition from a Single Depth Image
Yu-An Wei, Tzu-Wei Huang, Hwann-Tzong Chen, and JenChi Liu
ICME 2017 [pdf]
Age Estimation from Brain MRI Images Using Deep Learning
Tzu-Wei Huang, Hwann-Tzong Chen, Ryuichi Fujimoto, Koichi Ito, Kai Wu, Kazunori Sato, Yasuyuki Taki, Hiroshi Fukuda, and Takafumi Aoki
ISBI 2017 [pdf]
Quantitative Analysis of Automatic Image Cropping Algorithms: A Dataset and Comparative Study
Yi-Ling Chen, Tzu-Wei Huang, Kai-Han Chang, Yu-Chen Tsai, Hwann-Tzong Chen, Bing-Yu Chen
WACV 2017 [arXiv] [dataset]
Object Discovery in Depth Images
Yu-An Wei, Tzu-Wei Huang, Hwann-Tzong Chen, and JenChi Liu
APSIPA 2016 [pdf]
Interactive Segmentation from 1-Bit Feedback
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
ACCV 2016 [pdf]
Fast Defocus Map Estimation
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
ICIP 2016 [pdf] [code]
Transparent Texture Transfer
Chan-Tai Yeh, Ting-Hui Tsai, and Hwann-Tzong Chen
ICIP 2015 [pdf] [project]
Example-Based Motion Manipulation
Pin-Ching Su, Hwann-Tzong Chen, and Chia-Ming Cheng
ICIP 2014 [pdf] [project]
Random Decomposition Forests
Chun-Han Chien and Hwann-Tzong Chen
ACPR 2013 [pdf]
Random Exemplar Hashing
Tao-Yen Tang, Tzu-Wei Huang, and Hwann-Tzong Chen
DDS 2013 [pdf] [code]
Learning Sparse Dictionaries for Saliency Detection
Karen Guo and Hwann-Tzong Chen
APSIPA 2012 [pdf]
Learning Feature Subspaces for Appearance-Based Bundle Adjustment
Chia-Ming Cheng and Hwann-Tzong Chen
ACCV 2012 [pdf]
Video Object Cosegmentation
Ding-Jie Chen, Hwann-Tzong Chen, and Long-Wen Chang
ACM Multimedia 2012 [pdf]
Translation-Invariant Scene Grouping
Pin-Ching Su, Hwann-Tzong Chen, Koichi Ito, and Takafumi Aoki
ACPR 2011 [pdf]
Fusing Generic Objectness and Visual Saliency for Salient Object Detection
Kai-Yueh Chang, Tyng-Luh Liu, Hwann-Tzong Chen, Shang-Hong Lai
ICCV 2011 [pdf]
Preattentive Co-Saliency Detection
Hwann-Tzong Chen
ICIP 2010 [pdf] [code]
Probing the Local-Feature Space of Interest Points
Wei-Ting Lee and Hwann-Tzong Chen
ICIP 2010 [pdf]
A Square-Root Sampling Approach to Fast Histogram-Based Search
Huang-Wei Chang and Hwann-Tzong Chen
CVPR 2010 [pdf] [code]
Finding Good Composition in Panoramic Scenes
Yuan-Yang Chang and Hwann-Tzong Chen
ICCV 2009
Landmark-Based Sparse Color Representations for Color Transfer
Tzu-Wei Huang and Hwann-Tzong Chen
ICCV 2009
Histogram-based Interest Point Detectors
Wei-Ting Lee and Hwann-Tzong Chen
CVPR 2009 [pdf] [code]
Finding Familiar Objects and Their Depth from a Single Image
Hwann-Tzong Chen and Tyng-Luh Liu
ICIP 2007
Segmenting Highly Articulated Video Objects with Weak-Prior Random Forests
Hwann-Tzong Chen, Tyng-Luh Liu, and Chiou-Shann Fuh
ECCV 2006 [pdf]
Semantic Manifold Learning for Image Retrieval
Yen-Yu Lin, Tyng-Luh Liu, and Hwann-Tzong Chen
ACM MM 2005 [pdf]
Learning Effective Image Metrics from Few Pairwise Examples
Hwann-Tzong Chen, Tyng-Luh Liu, and Chiou-Shann Fuh
ICCV 2005 [pdf]
Local Discriminant Embedding and Its Variants
Hwann-Tzong Chen, Huang-Wei Chang, and Tyng-Luh Liu
CVPR 2005 [pdf] [code]
Tone Reproduction: A Perspective from Luminance-Driven Perceptual Grouping
Hwann-Tzong Chen, Tyng-Luh Liu, and Tien-Lung Chang
CVPR 2005 [pdf]
Probabilistic Tracking with Adaptive Feature Selection
Hwann-Tzong Chen, Tyng-Luh Liu, and Chiou-Shann Fuh
ICPR 2004
Probabilistic Tracking with Optimal Scale and Orientation Selection
Hwann-Tzong Chen and Tyng-Luh Liu
ICPR 2002
Multi-Object Tracking Using Dynamical Graph Matching
Hwann-Tzong Chen, Horng-Horng Lin, and Tyng-Luh Liu
CVPR 2001 [pdf]
Trust-Region Methods for Real-Time Tracking
Hwann-Tzong Chen and Tyng-Luh Liu
ICCV 2001 [pdf]
A Variational Approach for Digital Watermarking
Tyng-Luh Liu and Hwann-Tzong Chen
ICIP 2000

Technical Report
Improved Direct Voxel Grid Optimization for Radiance Fields Reconstruction
Cheng Sun, Min Sun, and Hwann-Tzong Chen
Technical Report 2022-06-10 [arXiv:2206.05085]
Color Constancy with Faces
Jiun-Hung Chen and Hwann-Tzong Chen
Technical Report 2011-09-01

Students


Last updated: 26 April 2023
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