Search Results for author: Xiao Sun

Found 31 papers, 12 papers with code

Unsupervised Learning of Efficient Geometry-Aware Neural Articulated Representations

no code implementations19 Apr 2022 Atsuhiro Noguchi, Xiao Sun, Stephen Lin, Tatsuya Harada

We propose an unsupervised method for 3D geometry-aware representation learning of articulated objects.

Representation Learning

Bringing Rolling Shutter Images Alive with Dual Reversed Distortion

no code implementations12 Mar 2022 Zhihang Zhong, Mingdeng Cao, Xiao Sun, Zhirong Wu, Zhongyi Zhou, Yinqiang Zheng, Stephen Lin, Imari Sato

In this paper, instead of two consecutive frames, we propose to exploit a pair of images captured by dual RS cameras with reversed RS directions for this highly challenging task.

Frame Optical Flow Estimation

A Simple Multi-Modality Transfer Learning Baseline for Sign Language Translation

no code implementations8 Mar 2022 Yutong Chen, Fangyun Wei, Xiao Sun, Zhirong Wu, Stephen Lin

This simple baseline surpasses the previous state-of-the-art results on two sign language translation benchmarks, demonstrating the effectiveness of transfer learning.

Sign Language Translation Transfer Learning +1

Cross-Model Pseudo-Labeling for Semi-Supervised Action Recognition

no code implementations17 Dec 2021 Yinghao Xu, Fangyun Wei, Xiao Sun, Ceyuan Yang, Yujun Shen, Bo Dai, Bolei Zhou, Stephen Lin

Typically in recent work, the pseudo-labels are obtained by training a model on the labeled data, and then using confident predictions from the model to teach itself.

Action Recognition

Towards Tokenized Human Dynamics Representation

1 code implementation22 Nov 2021 Kenneth Li, Xiao Sun, Zhirong Wu, Fangyun Wei, Stephen Lin

For human action understanding, a popular research direction is to analyze short video clips with unambiguous semantic content, such as jumping and drinking.

Action Segmentation Action Understanding +4

Self-supervised Discovery of Human Actons from Long Kinematic Videos

no code implementations29 Sep 2021 Kenneth Li, Xiao Sun, Zhirong Wu, Fangyun Wei, Stephen Lin

However, methods for understanding short semantic actions cannot be directly translated to long kinematic sequences such as dancing, where it becomes challenging even to semantically label the human movements.

Action Understanding Frame

ACP++: Action Co-occurrence Priors for Human-Object Interaction Detection

1 code implementation9 Sep 2021 Dong-Jin Kim, Xiao Sun, Jinsoo Choi, Stephen Lin, In So Kweon

A common problem in the task of human-object interaction (HOI) detection is that numerous HOI classes have only a small number of labeled examples, resulting in training sets with a long-tailed distribution.

Human-Object Interaction Detection

4-bit Quantization of LSTM-based Speech Recognition Models

no code implementations27 Aug 2021 Andrea Fasoli, Chia-Yu Chen, Mauricio Serrano, Xiao Sun, Naigang Wang, Swagath Venkataramani, George Saon, Xiaodong Cui, Brian Kingsbury, Wei zhang, Zoltán Tüske, Kailash Gopalakrishnan

We investigate the impact of aggressive low-precision representations of weights and activations in two families of large LSTM-based architectures for Automatic Speech Recognition (ASR): hybrid Deep Bidirectional LSTM - Hidden Markov Models (DBLSTM-HMMs) and Recurrent Neural Network - Transducers (RNN-Ts).

Automatic Speech Recognition Quantization

Learning Skeletal Graph Neural Networks for Hard 3D Pose Estimation

1 code implementation ICCV 2021 Ailing Zeng, Xiao Sun, Lei Yang, Nanxuan Zhao, Minhao Liu, Qiang Xu

While the average prediction accuracy has been improved significantly over the years, the performance on hard poses with depth ambiguity, self-occlusion, and complex or rare poses is still far from satisfactory.

3D Pose Estimation Action Recognition +2

Data-driven discovery of interpretable causal relations for deep learning material laws with uncertainty propagation

1 code implementation20 May 2021 Xiao Sun, Bahador Bahmani, Nikolaos N. Vlassis, WaiChing Sun, Yanxun Xu

This paper presents a computational framework that generates ensemble predictive mechanics models with uncertainty quantification (UQ).

Causal Discovery

Neural Articulated Radiance Field

1 code implementation ICCV 2021 Atsuhiro Noguchi, Xiao Sun, Stephen Lin, Tatsuya Harada

We present Neural Articulated Radiance Field (NARF), a novel deformable 3D representation for articulated objects learned from images.

Ultra-Low Precision 4-bit Training of Deep Neural Networks

no code implementations NeurIPS 2020 Xiao Sun, Naigang Wang, Chia-Yu Chen, Jiamin Ni, Ankur Agrawal, Xiaodong Cui, Swagath Venkataramani, Kaoutar El Maghraoui, Vijayalakshmi (Viji) Srinivasan, Kailash Gopalakrishnan

In this paper, we propose a number of novel techniques and numerical representation formats that enable, for the very first time, the precision of training systems to be aggressively scaled from 8-bits to 4-bits.


SRNet: Improving Generalization in 3D Human Pose Estimation with a Split-and-Recombine Approach

1 code implementation ECCV 2020 Ailing Zeng, Xiao Sun, Fuyang Huang, Minhao Liu, Qiang Xu, Stephen Lin

With the reduced dimensionality of less relevant body areas, the training set distribution within network branches more closely reflects the statistics of local poses instead of global body poses, without sacrificing information important for joint inference.

Monocular 3D Human Pose Estimation

Detecting Human-Object Interactions with Action Co-occurrence Priors

1 code implementation17 Jul 2020 Dong-Jin Kim, Xiao Sun, Jinsoo Choi, Stephen Lin, In So Kweon

A common problem in human-object interaction (HOI) detection task is that numerous HOI classes have only a small number of labeled examples, resulting in training sets with a long-tailed distribution.

Human-Object Interaction Detection

Point-Set Anchors for Object Detection, Instance Segmentation and Pose Estimation

1 code implementation ECCV 2020 Fangyun Wei, Xiao Sun, Hongyang Li, Jingdong Wang, Stephen Lin

A recent approach for object detection and human pose estimation is to regress bounding boxes or human keypoints from a central point on the object or person.

Instance Segmentation Object Detection +2

Downhole Track Detection via Multiscale Conditional Generative Adversarial Nets

no code implementations17 Apr 2019 Jia Li, Xing Wei, Guoqiang Yang, Xiao Sun, Changliang Li

A multiscale shared convolution structure is adopted in the discriminator network to further supervise training the generator.

Autonomous Driving

Reinforcement Learning Based Emotional Editing Constraint Conversation Generation

no code implementations17 Apr 2019 Jia Li, Xiao Sun, Xing Wei, Changliang Li, Jian-Hua Tao

In recent years, the generation of conversation content based on deep neural networks has attracted many researchers.

Multi-Task Learning reinforcement-learning

Explicit Spatiotemporal Joint Relation Learning for Tracking Human Pose

no code implementations17 Nov 2018 Xiao Sun, Chuankang Li, Stephen Lin

We present a method for human pose tracking that is based on learning spatiotemporal relationships among joints.

Frame Optical Flow Estimation +2

An Integral Pose Regression System for the ECCV2018 PoseTrack Challenge

1 code implementation17 Sep 2018 Xiao Sun, Chuankang Li, Stephen Lin

For the ECCV 2018 PoseTrack Challenge, we present a 3D human pose estimation system based mainly on the integral human pose regression method.

3D Human Pose Estimation

Towards 3D Human Pose Estimation in the Wild: a Weakly-supervised Approach

5 code implementations ICCV 2017 Xingyi Zhou, Qi-Xing Huang, Xiao Sun, xiangyang xue, Yichen Wei

We propose a weakly-supervised transfer learning method that uses mixed 2D and 3D labels in a unified deep neutral network that presents two-stage cascaded structure.

Monocular 3D Human Pose Estimation Pose Prediction +1

Compositional Human Pose Regression

1 code implementation ICCV 2017 Xiao Sun, Jiaxiang Shang, Shuang Liang, Yichen Wei

A central problem is that the structural information in the pose is not well exploited in the previous regression methods.

3D Pose Estimation

Deep Kinematic Pose Regression

no code implementations17 Sep 2016 Xingyi Zhou, Xiao Sun, Wei zhang, Shuang Liang, Yichen Wei

In this work, we propose to directly embed a kinematic object model into the deep neutral network learning for general articulated object pose estimation.

3D Human Pose Estimation

Cascaded Hand Pose Regression

no code implementations CVPR 2015 Xiao Sun, Yichen Wei, Shuang Liang, Xiaoou Tang, Jian Sun

We extends the previous 2D cascaded object pose regression work [9] in two aspects so that it works better for 3D articulated objects.

3D Hand Pose Estimation

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