no code implementations • 14 Dec 2019 • Dicong Qiu, Yibiao Zhao, Chris L. Baker
In this paper, we present an efficient differential dynamic programming (DDP) algorithm for belief space planning in POMDPs with uncertainty over a discrete latent state, and continuous states, actions, observations, and nonlinear dynamics.
no code implementations • 10 Apr 2019 • Yifei Xu, Jianwen Xie, Tianyang Zhao, Chris Baker, Yibiao Zhao, Ying Nian Wu
The problem of continuous inverse optimal control (over finite time horizon) is to learn the unknown cost function over the sequence of continuous control variables from expert demonstrations.
1 code implementation • CVPR 2019 • Tianyang Zhao, Yifei Xu, Mathew Monfort, Wongun Choi, Chris Baker, Yibiao Zhao, Yizhou Wang, Ying Nian Wu
Specifically, the model encodes multiple agents' past trajectories and the scene context into a Multi-Agent Tensor, then applies convolutional fusion to capture multiagent interactions while retaining the spatial structure of agents and the scene context.
no code implementations • CVPR 2016 • Yixin Zhu, Chenfanfu Jiang, Yibiao Zhao, Demetri Terzopoulos, Song-Chun Zhu
We propose a notion of affordance that takes into account physical quantities generated when the human body interacts with real-world objects, and introduce a learning framework that incorporates the concept of human utilities, which in our opinion provides a deeper and finer-grained account not only of object affordance but also of people's interaction with objects.
no code implementations • CVPR 2015 • Yixin Zhu, Yibiao Zhao, Song Chun Zhu
In this paper, we present a new framework - task-oriented modeling, learning and recognition which aims at understanding the underlying functions, physics and causality in using objects as "tools".
no code implementations • CVPR 2014 • Xiaobai Liu, Yibiao Zhao, Song-Chun Zhu
The grammar takes superpixels as its terminal nodes and use five production rules to generate the scene into a hierarchical parse graph.
no code implementations • CVPR 2014 • Jiajun Wu, Yibiao Zhao, Jun-Yan Zhu, Siwei Luo, Zhuowen Tu
Interactive segmentation, in which a user provides a bounding box to an object of interest for image segmentation, has been applied to a variety of applications in image editing, crowdsourcing, computer vision, and medical imaging.
no code implementations • CVPR 2013 • Bo Zheng, Yibiao Zhao, Joey C. Yu, Katsushi Ikeuchi, Song-Chun Zhu
In this paper, we present an approach for scene understanding by reasoning physical stability of objects from point cloud.
no code implementations • CVPR 2013 • Yibiao Zhao, Song-Chun Zhu
Indoor functional objects exhibit large view and appearance variations, thus are difficult to be recognized by the traditional appearance-based classification paradigm.
no code implementations • NeurIPS 2011 • Yibiao Zhao, Song-Chun Zhu
The algorithm has two stages: (i) Clustering: It forms all possible higher-level structures (clusters) from lower-level entities by production rules and contextual relations.