no code implementations • 21 Jul 2024 • Mengda Xu, Zhenjia Xu, Yinghao Xu, Cheng Chi, Gordon Wetzstein, Manuela Veloso, Shuran Song
By leveraging real-world human videos and simulated robot play data, we bypass the challenges of teleoperating physical robots in the real world, resulting in a scalable system for diverse tasks.
no code implementations • 27 Jun 2024 • Zeyi Liu, Cheng Chi, Eric Cousineau, Naveen Kuppuswamy, Benjamin Burchfiel, Shuran Song
In addition, we show that our system can generalize to unseen in-the-wild environments, by learning from diverse in-the-wild human demonstrations.
1 code implementation • 3 Jan 2024 • Cheng Chi
To address this, we propose a neural ODE based method for controlling unknown dynamical systems, denoted as Neural Control (NC), which combines dynamics identification and optimal control learning using a coupled neural ODE.
1 code implementation • 19 Jul 2023 • Mengda Xu, Zhenjia Xu, Cheng Chi, Manuela Veloso, Shuran Song
Human demonstration videos are a widely available data source for robot learning and an intuitive user interface for expressing desired behavior.
no code implementations • 4 Mar 2023 • Yun Wang, Cheng Chi, Xin Yang
Scene flow estimation, which predicts the 3D motion of scene points from point clouds, is a core task in autonomous driving and many other 3D vision applications.
no code implementations • ICCV 2023 • Yun Wang, Cheng Chi, Min Lin, Xin Yang
This approach circulates high-resolution estimated information (scene flow and feature) from the preceding iteration back to the low-resolution layer of the current iteration.
no code implementations • 6 Jul 2022 • Amine Mohamed Aboussalah, Min-Jae Kwon, Raj G Patel, Cheng Chi, Chi-Guhn Lee
We apply RIM to diverse real world time series cases to achieve strong performance over non-augmented data on regression, classification, and reinforcement learning tasks.
no code implementations • 3 Jun 2022 • Cheng Chi, Amine Mohamed Aboussalah, Elias B. Khalil, Juyoung Wang, Zoha Sherkat-Masoumi
Column Generation (CG) is an iterative algorithm for solving linear programs (LPs) with an extremely large number of variables (columns).
no code implementations • CVPR 2021 • Cheng Chi, Qingjie Wang, Tianyu Hao, Peng Guo, Xin Yang
In this paper, we show that effective feature-level collaboration of the networks for the three respective tasks could achieve much greater performance improvement for all three tasks than only loss-level joint optimization.
no code implementations • ICCV 2021 • Cheng Chi, Shuran Song
By mapping the observed partial surface to the canonical space and completing it in this space, the output representation describes the garment's full configuration using a complete 3D mesh with the per-vertex canonical coordinate label.
4 code implementations • NeurIPS 2020 • Cheng Chi, Fangyun Wei, Han Hu
The proposed module is named \emph{bridging visual representations} (BVR).
Ranked #65 on Object Detection on COCO test-dev
1 code implementation • ICML 2020 • Xiaobo Wang, Shuo Wang, Cheng Chi, Shifeng Zhang, Tao Mei
In face recognition, designing margin-based (e. g., angular, additive, additive angular margins) softmax loss functions plays an important role in learning discriminative features.
11 code implementations • CVPR 2020 • Shifeng Zhang, Cheng Chi, Yongqiang Yao, Zhen Lei, Stan Z. Li
In this paper, we first point out that the essential difference between anchor-based and anchor-free detection is actually how to define positive and negative training samples, which leads to the performance gap between them.
Ranked #37 on Object Detection on COCO-O
1 code implementation • 24 Sep 2019 • Cheng Chi, Shifeng Zhang, Junliang Xing, Zhen Lei, Stan Z. Li, Xudong Zou
Head and human detection have been rapidly improved with the development of deep convolutional neural networks.
no code implementations • 15 Sep 2019 • Cheng Chi, Shifeng Zhang, Junliang Xing, Zhen Lei, Stan Z. Li, Xudong Zou
Pedestrian detection in crowded scenes is a challenging problem, because occlusion happens frequently among different pedestrians.
no code implementations • 10 Sep 2019 • Shifeng Zhang, Cheng Chi, Zhen Lei, Stan Z. Li
To improve the classification ability for high recall efficiency, STC first filters out most simple negatives from low level detection layers to reduce search space for subsequent classifier, then SML is applied to better distinguish faces from background at various scales and FSM is introduced to let the backbone learn more discriminative features for classification.
no code implementations • 19 Feb 2019 • Chen Change Loy, Dahua Lin, Wanli Ouyang, Yuanjun Xiong, Shuo Yang, Qingqiu Huang, Dongzhan Zhou, Wei Xia, Quanquan Li, Ping Luo, Junjie Yan, Jian-Feng Wang, Zuoxin Li, Ye Yuan, Boxun Li, Shuai Shao, Gang Yu, Fangyun Wei, Xiang Ming, Dong Chen, Shifeng Zhang, Cheng Chi, Zhen Lei, Stan Z. Li, Hongkai Zhang, Bingpeng Ma, Hong Chang, Shiguang Shan, Xilin Chen, Wu Liu, Boyan Zhou, Huaxiong Li, Peng Cheng, Tao Mei, Artem Kukharenko, Artem Vasenin, Nikolay Sergievskiy, Hua Yang, Liangqi Li, Qiling Xu, Yuan Hong, Lin Chen, Mingjun Sun, Yirong Mao, Shiying Luo, Yongjun Li, Ruiping Wang, Qiaokang Xie, Ziyang Wu, Lei Lu, Yiheng Liu, Wengang Zhou
This paper presents a review of the 2018 WIDER Challenge on Face and Pedestrian.
3 code implementations • 7 Sep 2018 • Cheng Chi, Shifeng Zhang, Junliang Xing, Zhen Lei, Stan Z. Li, Xudong Zou
In particular, the SRN consists of two modules: the Selective Two-step Classification (STC) module and the Selective Two-step Regression (STR) module.
Ranked #1 on Face Detection on PASCAL Face