no code implementations • 23 Oct 2023 • Hui Tian, Kai Xu
This method provides more flexible to represent sharp feature and surface boundary on open surface.
no code implementations • 9 Oct 2023 • Xiong-Hui Chen, Junyin Ye, Hang Zhao, Yi-Chen Li, Haoran Shi, Yu-Yan Xu, Zhihao Ye, Si-Hang Yang, Anqi Huang, Kai Xu, Zongzhang Zhang, Yang Yu
In this work, we focus on imitator learning based on only one expert demonstration.
1 code implementation • 30 Sep 2023 • Kai Xu, Rongyu Chen, Gianni Franchi, Angela Yao
The capacity of a modern deep learning system to determine if a sample falls within its realm of knowledge is fundamental and important.
Out-of-Distribution Detection
Out of Distribution (OOD) Detection
1 code implementation • ICCV 2023 • Yaojie Shen, Xin Gu, Kai Xu, Heng Fan, Longyin Wen, Libo Zhang
Addressing this, we study video captioning from a different perspective in compressed domain, which brings multi-fold advantages over the existing pipeline: 1) Compared to raw images from the decoded video, the compressed video, consisting of I-frames, motion vectors and residuals, is highly distinguishable, which allows us to leverage the entire video for learning without manual sampling through a specialized model design; 2) The captioning model is more efficient in inference as smaller and less redundant information is processed.
Ranked #5 on
Video Captioning
on VATEX
no code implementations • 7 Sep 2023 • Ting Liu, Wansen Wu, Yue Hu, Youkai Wang, Kai Xu, Quanjun Yin
In the domain-aware stage, we apply a low-cost prompt tuning paradigm to learn soft visual prompts from an in-domain dataset for equipping the pretrained models with object-level and scene-level cross-modal alignment in VLN tasks.
1 code implementation • 30 Aug 2023 • Kai Xu, Shiyu Lu, Bin Huang, Weiwen Wu, Qiegen Liu
Diffusion models have emerged as potential tools to tackle the challenge of sparse-view CT reconstruction, displaying superior performance compared to conventional methods.
1 code implementation • 28 Aug 2023 • Hui Tian, Chenyang Zhu, Yifei Shi, Kai Xu
The key insight is that if the UDF is estimated correctly, the 3D points should be locally projected onto the underlying surface following the gradient of the UDF.
no code implementations • 17 Aug 2023 • Yijie Tang, Jiazhao Zhang, Zhinan Yu, He Wang, Kai Xu
For the first time, randomized optimization is made possible in neural tracking with several key designs to the learning process, enabling efficient and robust tracking even under fast camera motions.
1 code implementation • ICCV 2023 • Minhao Li, Zheng Qin, Zhirui Gao, Renjiao Yi, Chenyang Zhu, Yulan Guo, Kai Xu
The commonly adopted detect-then-match approach to registration finds difficulties in the cross-modality cases due to the incompatible keypoint detection and inconsistent feature description.
1 code implementation • 25 Jul 2023 • Zheng Qin, Hao Yu, Changjian Wang, Yulan Guo, Yuxing Peng, Slobodan Ilic, Dewen Hu, Kai Xu
They seek correspondences over downsampled superpoints, which are then propagated to dense points.
1 code implementation • ICCV 2023 • Jingjia Shi, Shuaifeng Zhi, Kai Xu
3D plane recovery from a single image can usually be divided into several subtasks of plane detection, segmentation, parameter estimation and possibly depth estimation.
no code implementations • 16 Jul 2023 • Yifei Shi, Junhua Xi, Dewen Hu, Zhiping Cai, Kai Xu
In particular, we propose RayMVSNet which learns sequential prediction of a 1D implicit field along each camera ray with the zero-crossing point indicating scene depth.
1 code implementation • 28 Jun 2023 • Hui Tian, Zheng Qin, Renjiao Yi, Chenyang Zhu, Kai Xu
Surface reconstruction from raw point clouds has been studied for decades in the computer graphics community, which is highly demanded by modeling and rendering applications nowadays.
1 code implementation • 27 Jun 2023 • Yunfan Ye, Renjiao Yi, Zhirui Gao, Zhiping Cai, Kai Xu
Learning-based edge detection usually suffers from predicting thick edges.
no code implementations • 23 Jun 2023 • Yuhang Huang, Zheng Qin, Xinwang Liu, Kai Xu
We find that decoupling the diffusion process reduces the learning difficulty and the explicit transition probability improves the generative speed significantly.
no code implementations • 18 May 2023 • Georgi Ganev, Kai Xu, Emiliano De Cristofaro
Generative models trained with Differential Privacy (DP) are increasingly used to produce synthetic data while reducing privacy risks.
no code implementations • 1 May 2023 • Akash Srivastava, Seungwook Han, Kai Xu, Benjamin Rhodes, Michael U. Gutmann
We show that if these auxiliary densities are constructed such that they overlap with $p$ and $q$, then a multi-class logistic regression allows for estimating $\log p/q$ on the domain of any of the $K+2$ distributions and resolves the distribution shift problems of the current state-of-the-art methods.
1 code implementation • 29 Apr 2023 • Kai Xu, Ziwei Yu, Xin Wang, Michael Bi Mi, Angela Yao
Video super-resolution commonly uses a frame-wise alignment to support the propagation of information over time.
Ranked #1 on
Video Super-Resolution
on REDS4- 4x upscaling
no code implementations • CVPR 2023 • Renjiao Yi, Chenyang Zhu, Kai Xu
For re-rendering, we propose a differentiable specular rendering layer to render low-frequency non-Lambertian materials under various illuminations of spherical harmonics.
no code implementations • ICCV 2023 • Boyan Wan, Yifei Shi, Kai Xu
We propose Semantically-aware Object Coordinate Space (SOCS) built by warping-and-aligning the objects guided by a sparse set of keypoints with semantically meaningful correspondence.
1 code implementation • CVPR 2023 • Zheng Qin, Hao Yu, Changjian Wang, Yuxing Peng, Kai Xu
We first design a local spatial consistency measure over the deformation graph of the point cloud, which evaluates the spatial compatibility only between the correspondences in the vicinity of a graph node.
1 code implementation • 15 Mar 2023 • Zhirui Gao, Renjiao Yi, Zheng Qin, Yunfan Ye, Chenyang Zhu, Kai Xu
To tackle the challenges, we propose an accurate template matching method based on differentiable coarse-to-fine correspondence refinement.
1 code implementation • CVPR 2023 • Yunfan Ye, Renjiao Yi, Zhirui Gao, Chenyang Zhu, Zhiping Cai, Kai Xu
We study the problem of reconstructing 3D feature curves of an object from a set of calibrated multi-view images.
1 code implementation • 4 Mar 2023 • Charlotte Loh, Seungwook Han, Shivchander Sudalairaj, Rumen Dangovski, Kai Xu, Florian Wenzel, Marin Soljacic, Akash Srivastava
In this work, we present Multi-Symmetry Ensembles (MSE), a framework for constructing diverse ensembles by capturing the multiplicity of hypotheses along symmetry axes, which explore the hypothesis space beyond stochastic perturbations of model weights and hyperparameters.
no code implementations • 7 Feb 2023 • Junwen Huang, Alexey Artemov, Yujin Chen, Shuaifeng Zhi, Kai Xu, Matthias Nießner
In this work, we explore a central 3D scene modeling task, namely, semantic scene reconstruction without using any 3D annotations.
no code implementations • 30 Jan 2023 • Max Schrader, Navish Kumar, Nicolas Collignon, Esben Sørig, Soonmyeong Yoon, Akash Srivastava, Kai Xu, Maria Astefanoaei
Light goods vehicles (LGV) used extensively in the last mile of delivery are one of the leading polluters in cities.
no code implementations • 19 Jan 2023 • BoWen Zhang, Xiaojie Jin, Weibo Gong, Kai Xu, Zhao Zhang, Peng Wang, Xiaohui Shen, Jiashi Feng
State-of-the-art video-text retrieval (VTR) methods usually fully fine-tune the pre-trained model (e. g.
no code implementations • 12 Jan 2023 • Xiaogang Wang, Yuhang Cheng, Liang Wang, Jiangbo Lu, Kai Xu, GuoQiang Xiao
Among them, the differential Laplican regularizer can effectively alleviate the implicit surface unsmoothness caused by the point cloud quality deteriorates; Meanwhile, in order to reduce the excessive smoothing at the edge regions of implicit suface, we proposed a dynamic edge extract strategy for sampling near the sharp edge of point cloud, which can effectively avoid the Laplacian regularizer from smoothing all regions.
1 code implementation • CVPR 2023 • Sheng Ao, Qingyong Hu, Hanyun Wang, Kai Xu, Yulan Guo
Extensive experiments on real-world scenarios demonstrate that our method achieves the best of both worlds in accuracy, efficiency, and generalization.
1 code implementation • 5 Dec 2022 • Hang Zhao, Zherong Pan, Yang Yu, Kai Xu
We study the problem of learning online packing skills for irregular 3D shapes, which is arguably the most challenging setting of bin packing problems.
1 code implementation • 3 Dec 2022 • Yaqiao Dai, Renjiao Yi, Chenyang Zhu, Hongjun He, Kai Xu
Therefore, we propose a novel depth map fusion module to combine the advantages of estimations with multi-resolution inputs.
no code implementations • CVPR 2023 • Jiazhao Zhang, Liu Dai, Fanpeng Meng, Qingnan Fan, Xuelin Chen, Kai Xu, He Wang
However, leveraging 3D scene representation can be prohibitively unpractical for policy learning in this floor-level task, due to low sample efficiency and expensive computational cost.
no code implementations • 20 Oct 2022 • Zeyu Huang, Juzhan Xu, Sisi Dai, Kai Xu, Hao Zhang, Hui Huang, Ruizhen Hu
Given a few object manipulation demos, NIFT guides the generation of the interaction imitation for a new object instance by matching the Neural Interaction Template (NIT) extracted from the demos in the target Neural Interaction Field (NIF) defined for the new object.
no code implementations • 17 Sep 2022 • Chenyi Liu, Fei Chen, Lu Deng, Renjiao Yi, Lintao Zheng, Chenyang Zhu, Jia Wang, Kai Xu
We introduce a well-targeted down-sampling strategy that focuses more on edge area for efficient feature extraction of complex geometry.
no code implementations • 3 Aug 2022 • Tiankai Gu, Chaokun Wang, Cheng Wu, Jingcao Xu, Yunkai Lou, Changping Wang, Kai Xu, Can Ye, Yang song
One of the most important tasks in recommender systems is to predict the potential connection between two nodes under a specific edge type (i. e., relationship).
1 code implementation • 27 Jul 2022 • Yaojie Shen, Libo Zhang, Kai Xu, Xiaojie Jin
First we learn the embedding of video transitions through a video transition classification task.
1 code implementation • 17 Jul 2022 • Simao Eduardo, Kai Xu, Alfredo Nazabal, Charles Sutton
Seeing as a systematic outlier is a combination of patterns of a clean instance and systematic error patterns, our main insight is that inliers can be modelled by a smaller representation (subspace) in a model than outliers.
2 code implementations • 12 Jul 2022 • Sofiane Mahiou, Kai Xu, Georgi Ganev
We propose a general, flexible, and scalable framework dpart, an open source Python library for differentially private synthetic data generation.
no code implementations • CVPR 2022 • Junhua Xi, Yifei Shi, Yijie Wang, Yulan Guo, Kai Xu
In particular, we propose RayMVSNet which learns sequential prediction of a 1D implicit field along each camera ray with the zero-crossing point indicating scene depth.
no code implementations • 3 Apr 2022 • Qijin She, Ruizhen Hu, Juzhan Xu, Min Liu, Kai Xu, Hui Huang
To resolve the sample efficiency issue in learning the high-dimensional and complex control of dexterous grasping, we propose an effective representation of grasping state characterizing the spatial interaction between the gripper and the target object.
no code implementations • CVPR 2022 • Yao Duan, Chenyang Zhu, Yuqing Lan, Renjiao Yi, Xinwang Liu, Kai Xu
However, adopting relations between all the object or patch proposals for detection is inefficient, and an imbalanced combination of local and global relations brings extra noise that could mislead the training.
1 code implementation • 28 Feb 2022 • Joya Chen, Kai Xu, Yuhui Wang, Yifei Cheng, Angela Yao
A standard hardware bottleneck when training deep neural networks is GPU memory.
1 code implementation • 20 Feb 2022 • Yuqing Lan, Yao Duan, Yifei Shi, Hui Huang, Kai Xu
Context has proven to be one of the most important factors in object layout reasoning for 3D scene understanding.
1 code implementation • 20 Feb 2022 • Yuqing Lan, Yao Duan, Chenyi Liu, Chenyang Zhu, Yueshan Xiong, Hui Huang, Kai Xu
In the field of 3D object detection, previous methods have been taking the advantage of context encoding, graph embedding, or explicit relation reasoning to extract relation context.
2 code implementations • CVPR 2022 • Zheng Qin, Hao Yu, Changjian Wang, Yulan Guo, Yuxing Peng, Kai Xu
Such sparse and loose matching requires contextual features capturing the geometric structure of the point clouds.
1 code implementation • CVPR 2022 • Chengjie Niu, Manyi Li, Kai Xu, Hao Zhang
Each level of the tree corresponds to an assembly of shape parts, represented as implicit functions, to reconstruct the input shape.
1 code implementation • 13 Jan 2022 • Yunfan Ye, Renjiao Yi, Zhiping Cai, Kai Xu
In particular, we impose a consistency regularization which enforces the outputs from each of the multiple layers to be consistent for the input image and its perturbed counterpart.
no code implementations • 9 Jan 2022 • Yan Liu, Qingyong Hu, Yinjie Lei, Kai Xu, Jonathan Li, Yulan Guo
In this paper, we introduce a neural architecture, termed Box2Seg, to learn point-level semantics of 3D point clouds with bounding box-level supervision.
1 code implementation • CVPR 2022 • Kunhong Li, Longguang Wang, Li Liu, Qing Ran, Kai Xu, Yulan Guo
Weakly supervised learning can help local feature methods to overcome the obstacle of acquiring a large-scale dataset with densely labeled correspondences.
Ranked #1 on
Camera Localization
on Aachen Day-Night benchmark
no code implementations • NeurIPS 2021 • Kai Xu, Akash Srivastava, Dan Gutfreund, Felix Sosa, Tomer Ullman, Josh Tenenbaum, Charles Sutton
In this paper, we propose a Bayesian-symbolic framework (BSP) for physical reasoning and learning that is close to human-level sample-efficiency and accuracy.
2 code implementations • NeurIPS 2021 • Cole Hurwitz, Akash Srivastava, Kai Xu, Justin Jude, Matthew G. Perich, Lee E. Miller, Matthias H. Hennig
These approaches, however, are limited in their ability to capture the underlying neural dynamics (e. g. linear) and in their ability to relate the learned dynamics back to the observed behaviour (e. g. no time lag).
1 code implementation • ICLR 2022 • Hang Zhao, Yang Yu, Kai Xu
PCT is a full-fledged description of the state and action space of bin packing which can support packing policy learning based on deep reinforcement learning (DRL).
no code implementations • 29 Sep 2021 • Akash Srivastava, Seungwook Han, Benjamin Rhodes, Kai Xu, Michael U. Gutmann
As such, estimating density ratios accurately using only samples from $p$ and $q$ is of high significance and has led to a flurry of recent work in this direction.
2 code implementations • 31 Aug 2021 • Hang Zhao, Chenyang Zhu, Xin Xu, Hui Huang, Kai Xu
In this problem, the items are delivered to the agent without informing the full sequence information.
2 code implementations • CVPR 2022 • Kai Xu, Angela Yao
We propose an efficient plug-and-play acceleration framework for semi-supervised video object segmentation by exploiting the temporal redundancies in videos presented by the compressed bitstream.
no code implementations • 20 May 2021 • Guanjie Zheng, Hanyang Liu, Kai Xu, Zhenhui Li
Traffic simulators act as an essential component in the operating and planning of transportation systems.
no code implementations • 12 May 2021 • Jiazhao Zhang, Chenyang Zhu, Lintao Zheng, Kai Xu
We propose to tackle the difficulties of fast-motion camera tracking in the absence of inertial measurements using random optimization, in particular, the Particle Filter Optimization (PFO).
no code implementations • 5 Apr 2021 • Dengsheng Chen, Haowen Deng, Jun Li, Duo Li, Yao Duan, Kai Xu
In this work, rather than defining a continuous or discrete kernel, we directly embed convolutional kernels into the learnable potential fields, giving rise to potential convolution.
no code implementations • CVPR 2021 • Xiaogang Wang, Xun Sun, Xinyu Cao, Kai Xu, Bin Zhou
Learning-based 3D shape segmentation is usually formulated as a semantic labeling problem, assuming that all parts of training shapes are annotated with a given set of tags.
no code implementations • CVPR 2021 • Yifei Shi, Junwen Huang, Xin Xu, Yifan Zhang, Kai Xu
According to the theory of geometric stability analysis, a minimal set of three planar/cylindrical patches are geometrically stable and determine the full 6DoFs of the object pose.
no code implementations • 1 Jan 2021 • Zhikang Zhang, Kai Xu, Fengbo Ren
In this paper, we propose a selective sensing framework that adopts the novel concept of data-driven nonuniform subsampling to reduce the dimensionality of acquired signals while retaining the information of interest in a computation-free fashion.
no code implementations • 1 Jan 2021 • Kai Xu, Akash Srivastava, Dan Gutfreund, Felix Sosa, Tomer Ullman, Joshua B. Tenenbaum, Charles Sutton
As such, learning the laws is then reduced to symbolic regression and Bayesian inference methods are used to obtain the distribution of unobserved properties.
no code implementations • 31 Dec 2020 • Zheng Zhao, Kai Xu, Attaphon Kaewsnod, Xuyang Liu, Ayut Limphirat, Yupeng Yan
The masses of tetraquark states of all $qc\bar q \bar c$ and $cc\bar c \bar c$ quark configurations are evaluated in a constituent quark model, where the Cornell-like potential and one-gluon exchange spin-spin coupling are employed.
High Energy Physics - Phenomenology
no code implementations • 24 Dec 2020 • Pengdi Huang, Liqiang Lin, Fuyou Xue, Kai Xu, Danny Cohen-Or, Hui Huang
We show that HPC constitutes a powerful point feature learning with a rather compact set of only four types of geometric priors as kernels.
no code implementations • 11 Dec 2020 • Liqiang Lin, Pengdi Huang, Chi-Wing Fu, Kai Xu, Hao Zhang, Hui Huang
We present a novel attention-based mechanism to learn enhanced point features for point cloud processing tasks, e. g., classification and segmentation.
no code implementations • 5 Nov 2020 • Kai Xu
The succeed of simulation strongly supports the ellipse packing hypothesis that was proposed to explain the dynamic behaviors of a trivalent 2D structure.
Biological Physics Adaptation and Self-Organizing Systems Cell Behavior
no code implementations • 25 Oct 2020 • Akash Srivastava, Yamini Bansal, Yukun Ding, Cole Hurwitz, Kai Xu, Bernhard Egger, Prasanna Sattigeri, Josh Tenenbaum, David D. Cox, Dan Gutfreund
Current autoencoder-based disentangled representation learning methods achieve disentanglement by penalizing the (aggregate) posterior to encourage statistical independence of the latent factors.
1 code implementation • 16 Sep 2020 • Daniel Jünger, Robin Kobus, André Müller, Christian Hundt, Kai Xu, Weiguo Liu, Bertil Schmidt
The rapidly growing amount of data emerging in many fields motivated the need for accelerated hash tables designed for modern parallel architectures.
Distributed, Parallel, and Cluster Computing
no code implementations • 2 Aug 2020 • Yifei Shi, Junwen Huang, Hongjia Zhang, Xin Xu, Szymon Rusinkiewicz, Kai Xu
We propose an end-to-end deep neural network which is able to predict both reflectional and rotational symmetries of 3D objects present in the input RGB-D image.
no code implementations • NeurIPS 2020 • Xiaogang Wang, Yuelang Xu, Kai Xu, Andrea Tagliasacchi, Bin Zhou, Ali Mahdavi-Amiri, Hao Zhang
We introduce an end-to-end learnable technique to robustly identify feature edges in 3D point cloud data.
1 code implementation • 26 Jun 2020 • Hang Zhao, Qijin She, Chenyang Zhu, Yin Yang, Kai Xu
We solve a challenging yet practically useful variant of 3D Bin Packing Problem (3D-BPP).
1 code implementation • 24 Jun 2020 • Dengsheng Chen, Jun Li, Kai Xu
Adding the attention module with a rectified linear unit (ReLU) results in an amplification of positive elements and a suppression of negative ones, both with learned, data-adaptive parameters.
1 code implementation • NeurIPS 2020 • Benjamin Rhodes, Kai Xu, Michael U. Gutmann
Density-ratio estimation via classification is a cornerstone of unsupervised learning.
1 code implementation • CVPR 2020 • Qian Xie, Yu-Kun Lai, Jing Wu, Zhoutao Wang, Yiming Zhang, Kai Xu, Jun Wang
We demonstrate these by capturing contextual information at patch, object and scene levels.
1 code implementation • CVPR 2020 • Jiazhao Zhang, Chenyang Zhu, Lintao Zheng, Kai Xu
Online semantic 3D segmentation in company with real-time RGB-D reconstruction poses special challenges such as how to perform 3D convolution directly over the progressively fused 3D geometric data, and how to smartly fuse information from frame to frame.
4 code implementations • CVPR 2020 • Kai Xu, Minghai Qin, Fei Sun, Yuhao Wang, Yen-Kuang Chen, Fengbo Ren
Experiment results show that learning in the frequency domain with static channel selection can achieve higher accuracy than the conventional spatial downsampling approach and meanwhile further reduce the input data size.
2 code implementations • 7 Feb 2020 • Mohamed Tarek, Kai Xu, Martin Trapp, Hong Ge, Zoubin Ghahramani
Since DynamicPPL is a modular, stand-alone library, any probabilistic programming system written in Julia, such as Turing. jl, can use DynamicPPL to specify models and trace their model parameters.
no code implementations • 4 Feb 2020 • Min Liu, Zherong Pan, Kai Xu, Kanishka Ganguly, Dinesh Manocha
We present an end-to-end algorithm for training deep neural networks to grasp novel objects.
Robotics
no code implementations • CVPR 2020 • Dengsheng Chen, Jun Li, Zheng Wang, Kai Xu
To tackle intra-class shape variations, we learn canonical shape space (CASS), a unified representation for a large variety of instances of a certain object category.
no code implementations • 17 Dec 2019 • Kai Xu, Xiao-Jun Wu, Wen-Bo Hu
Based on further studying the low-rank subspace clustering (LRSC) and L2-graph subspace clustering algorithms, we propose a F-graph subspace clustering algorithm with a symmetric constraint (FSSC), which constructs a new objective function with a symmetric constraint basing on F-norm, whose the most significant advantage is to obtain a closed-form solution of the coefficient matrix.
1 code implementation • 9 Dec 2019 • Qiaoyun Wu, Kai Xu, Jun Wang, Mingliang Xu, Dinesh Manocha
The regularization maximizes the mutual information between navigation actions and visual observation transforms of an agent, thus promoting more informed navigation decisions.
Robotics
no code implementations • 26 Nov 2019 • Siyan Dong, Songyin Wu, Yixin Zhuang, Kai Xu, Shanghang Zhang, Baoquan Chen
To address this issue, we approach camera relocalization with a decoupled solution where feature extraction, coordinate regression, and pose estimation are performed separately.
3 code implementations • CVPR 2020 • Rundi Wu, Yixin Zhuang, Kai Xu, Hao Zhang, Baoquan Chen
We introduce PQ-NET, a deep neural network which represents and generates 3D shapes via sequential part assembly.
1 code implementation • pproximateinference AABI Symposium 2019 • Tor Erlend Fjelde, Kai Xu, Mohamed Tarek, Sharan Yalburgi, Hong Ge
Transforming one probability distribution to another is a powerful tool in Bayesian inference and machine learning.
1 code implementation • pproximateinference AABI Symposium 2019 • Kai Xu, Hong Ge, Will Tebbutt, Mohamed Tarek, Martin Trapp, Zoubin Ghahramani
Stan's Hamilton Monte Carlo (HMC) has demonstrated remarkable sampling robustness and efficiency in a wide range of Bayesian inference problems through carefully crafted adaption schemes to the celebrated No-U-Turn sampler (NUTS) algorithm.
no code implementations • ICCV 2019 • Maciej Halber, Yifei Shi, Kai Xu, Thomas Funkhouser
In depth-sensing applications ranging from home robotics to AR/VR, it will be common to acquire 3D scans of interior spaces repeatedly at sparse time intervals (e. g., as part of regular daily use).
no code implementations • 7 Sep 2019 • Zhen-Biao Yang, Pei-Rong Han, Xin-Jie Huang, Wen Ning, HekangLi, Kai Xu, Dongning Zheng, Heng Fan, Shi-Biao Zheng
No-cloning theorem forbids perfect cloning of an unknown quantum state.
Quantum Physics
no code implementations • 22 Aug 2019 • Qi Bi, Kun Qin, Zhili Li, Han Zhang, Kai Xu
While the current convolution neural network tends to extract global features and global semantic information in a scene, the geo-spatial objects can be located at anywhere in an aerial image scene and their spatial arrangement tends to be more complicated.
no code implementations • 22 Aug 2019 • Qi Bi, Kun Qin, Han Zhang, Wenjun Han, Zhili Li, Kai Xu
Exhaustive experiments indicate that the proposed method can detect building change types directly and outperform the current multi-index learning method.
no code implementations • 18 Jun 2019 • Lintao Zheng, Chenyang Zhu, Jiazhao Zhang, Hang Zhao, Hui Huang, Matthias Niessner, Kai Xu
In our method, the exploratory robot scanning is both driven by and targeting at the recognition and segmentation of semantic objects from the scene.
1 code implementation • 17 Jun 2019 • Qiaoyun Wu, Dinesh Manocha, Jun Wang, Kai Xu
First, the latent distribution is conditioned on current observations and the target view, leading to a model-based, target-driven navigation.
no code implementations • 16 Jun 2019 • Jun Li, Chengjie Niu, Kai Xu
Enlightened by the fact that 3D shape structure is characterized as part composition and placement, we propose to model 3D shape variations with a part-aware deep generative network, coined as PAGENet.
1 code implementation • NeurIPS 2019 • Cole L. Hurwitz, Kai Xu, Akash Srivastava, Alessio P. Buccino, Matthias H. Hennig
Determining the positions of neurons in an extracellular recording is useful for investigating functional properties of the underlying neural circuitry.
no code implementations • 12 May 2019 • Guanjie Zheng, Xinshi Zang, Nan Xu, Hua Wei, Zhengyao Yu, Vikash Gayah, Kai Xu, Zhenhui Li
In this paper, we propose to re-examine the RL approaches through the lens of classic transportation theory.
1 code implementation • 12 May 2019 • Guanjie Zheng, Yuanhao Xiong, Xinshi Zang, Jie Feng, Hua Wei, Huichu Zhang, Yong Li, Kai Xu, Zhenhui Li
Increasingly available city data and advanced learning techniques have empowered people to improve the efficiency of our city functions.
3 code implementations • 11 May 2019 • Hua Wei, Nan Xu, Huichu Zhang, Guanjie Zheng, Xinshi Zang, Chacha Chen, Wei-Nan Zhang, Yanmin Zhu, Kai Xu, Zhenhui Li
To enable cooperation of traffic signals, in this paper, we propose a model, CoLight, which uses graph attentional networks to facilitate communication.
1 code implementation • CVPR 2019 • Kai Xu, Longyin Wen, Guorong Li, Liefeng Bo, Qingming Huang
Specifically, the temporal coherence branch pretrained in an adversarial fashion from unlabeled video data, is designed to capture the dynamic appearance and motion cues of video sequences to guide object segmentation.
Ranked #2 on
Semi-Supervised Video Object Segmentation
on YouTube
no code implementations • CVPR 2020 • Chenyang Zhu, Kai Xu, Siddhartha Chaudhuri, Li Yi, Leonidas Guibas, Hao Zhang
While the part prior network can be trained with noisy and inconsistently segmented shapes, the final output of AdaCoSeg is a consistent part labeling for the input set, with each shape segmented into up to (a user-specified) K parts.
1 code implementation • CVPR 2019 • Xiaogang Wang, Bin Zhou, Yahao Shi, Xiaowu Chen, Qinping Zhao, Kai Xu
For the task of mobility analysis of 3D shapes, we propose joint analysis for simultaneous motion part segmentation and motion attribute estimation, taking a single 3D model as input.
no code implementations • CVPR 2019 • Yifei Shi, Angel Xuan Chang, Zhelun Wu, Manolis Savva, Kai Xu
Indoor scenes exhibit rich hierarchical structure in 3D object layouts.
no code implementations • CVPR 2019 • Fenggen Yu, Kun Liu, Yan Zhang, Chenyang Zhu, Kai Xu
Meanwhile, to increase the segmentation accuracy at each node, we enhance the recursive contextual feature with the shape feature extracted for the corresponding part.
Ranked #14 on
3D Part Segmentation
on ShapeNet-Part
(Class Average IoU metric)
no code implementations • 1 Mar 2019 • Min Liu, Zherong Pan, Kai Xu, Kanishka Ganguly, Dinesh Manocha
The quality of the grasp poses is on par with the groundtruth poses in the dataset.
Robotics
no code implementations • 14 Sep 2018 • Chenyang Zhu, Kai Xu, Siddhartha Chaudhuri, Renjiao Yi, Hao Zhang
The network may significantly alter the geometry and structure of the input parts and synthesize a novel shape structure based on the inputs, while adding or removing parts to minimize a structure plausibility loss.
no code implementations • 13 Sep 2018 • Xiaogang Wang, Bin Zhou, Haiyue Fang, Xiaowu Chen, Qinping Zhao, Kai Xu
We propose to generate part hypotheses from the components based on a hierarchical grouping strategy, and perform labeling on those part groups instead of directly on the components.
no code implementations • 20 Aug 2018 • Songle Chen, Lintao Zheng, Yan Zhang, Zhixin Sun, Kai Xu
Multi-view deep neural network is perhaps the most successful approach in 3D shape classification.
no code implementations • 20 Aug 2018 • Yawei Zhao, Kai Xu, Xinwang Liu, En Zhu, Xinzhong Zhu, Jianping Yin
The reason is that it finds the similar instances according to their features directly, which is usually impacted by the imperfect data, and thus returns sub-optimal results.
2 code implementations • 11 Aug 2018 • Biao Leng, Cheng Zhang, Xiaocheng Zhou, Cheng Xu, Kai Xu
In this network, a Score Generation Unit is devised to evaluate the quality of each projected image with score vectors.
1 code implementation • ECCV 2018 • Kai Xu, Zhikang Zhang, Fengbo Ren
We propose a scalable Laplacian pyramid reconstructive adversarial network (LAPRAN) that enables high-fidelity, flexible and fast CS images reconstruction.
no code implementations • 24 Jul 2018 • Manyi Li, Akshay Gadi Patil, Kai Xu, Siddhartha Chaudhuri, Owais Khan, Ariel Shamir, Changhe Tu, Baoquan Chen, Daniel Cohen-Or, Hao Zhang
We present a generative neural network which enables us to generate plausible 3D indoor scenes in large quantities and varieties, easily and highly efficiently.
Graphics
no code implementations • ICLR 2020 • Akash Srivastava, Kai Xu, Michael U. Gutmann, Charles Sutton
In this work, we take their insight of using kernels as fixed adversaries further and present a novel method for training deep generative models that does not involve saddlepoint optimization.
no code implementations • 18 Apr 2018 • Fenggen Yu, Yan Zhang, Kai Xu, Ali Mahdavi-Amiri, Hao Zhang
We present a semi-supervised co-analysis method for learning 3D shape styles from projected feature lines, achieving style patch localization with only weak supervision.
no code implementations • CVPR 2018 • Chengjie Niu, Jun Li, Kai Xu
We propose to recover 3D shape structures from single RGB images, where structure refers to shape parts represented by cuboids and part relations encompassing connectivity and symmetry.
no code implementations • ECCV 2018 • Yifei Shi, Kai Xu, Matthias Niessner, Szymon Rusinkiewicz, Thomas Funkhouser
We introduce a novel RGB-D patch descriptor designed for detecting coplanar surfaces in SLAM reconstruction.
no code implementations • 13 Mar 2018 • Kai Xu, Dawei Li, Nick Cassimatis, Xiaolong Wang
In this paper, we propose LCANet, an end-to-end deep neural network based lipreading system.
Ranked #2 on
Lipreading
on GRID corpus (mixed-speech)
Automatic Speech Recognition
Automatic Speech Recognition (ASR)
+2
no code implementations • 11 Mar 2018 • Kai Xu, Dae Hoon Park, Chang Yi, Charles Sutton
Interpreting black box classifiers, such as deep networks, allows an analyst to validate a classifier before it is deployed in a high-stakes setting.
no code implementations • 5 May 2017 • Jun Li, Kai Xu, Siddhartha Chaudhuri, Ersin Yumer, Hao Zhang, Leonidas Guibas
We introduce a novel neural network architecture for encoding and synthesis of 3D shapes, particularly their structures.
no code implementations • 20 Feb 2017 • Yixing Li, Zichuan Liu, Kai Xu, Hao Yu, Fengbo Ren
For processing static data in large batch sizes, the proposed solution is on a par with a Titan X GPU in terms of throughput while delivering 9. 5x higher energy efficiency.
no code implementations • 15 Dec 2016 • Kai Xu, Yixing Li, Fengbo Ren
Compressive sensing (CS) is a promising technology for realizing energy-efficient wireless sensors for long-term health monitoring.
2 code implementations • 15 Dec 2016 • Kai Xu, Fengbo Ren
This paper addresses the real-time encoding-decoding problem for high-frame-rate video compressive sensing (CS).
no code implementations • 14 Oct 2016 • Min Liu, Yifei Shi, Lintao Zheng, Kai Xu, Hui Huang, Dinesh Manocha
Active vision is inherently attention-driven: The agent actively selects views to attend in order to fast achieve the vision task while improving its internal representation of the scene being observed.