Search Results for author: Ping Tan

Found 69 papers, 21 papers with code

Unseen Object 6D Pose Estimation: A Benchmark and Baselines

no code implementations23 Jun 2022 Minghao Gou, Haolin Pan, Hao-Shu Fang, Ziyuan Liu, Cewu Lu, Ping Tan

In this paper, we propose a new task that enables and facilitates algorithms to estimate the 6D pose estimation of novel objects during testing.

6D Pose Estimation

RCP: Recurrent Closest Point for Scene Flow Estimation on 3D Point Clouds

no code implementations23 May 2022 Xiaodong Gu, Chengzhou Tang, Weihao Yuan, Zuozhuo Dai, Siyu Zhu, Ping Tan

In the experiments, we evaluate the proposed method on both the 3D scene flow estimation and the point cloud registration task.

Motion Estimation Point Cloud Registration +1

Efficient Virtual View Selection for 3D Hand Pose Estimation

1 code implementation29 Mar 2022 Jian Cheng, Yanguang Wan, Dexin Zuo, Cuixia Ma, Jian Gu, Ping Tan, Hongan Wang, Xiaoming Deng, yinda zhang

3D hand pose estimation from single depth is a fundamental problem in computer vision, and has wide applications. However, the existing methods still can not achieve satisfactory hand pose estimation results due to view variation and occlusion of human hand.

3D Hand Pose Estimation

A Real World Dataset for Multi-view 3D Reconstruction

no code implementations22 Mar 2022 Rakesh Shrestha, Siqi Hu, Minghao Gou, Ziyuan Liu, Ping Tan

We present a dataset of 371 3D models of everyday tabletop objects along with their 320, 000 real world RGB and depth images.

3D Reconstruction Pose Estimation

NeW CRFs: Neural Window Fully-connected CRFs for Monocular Depth Estimation

1 code implementation CVPR 2022 Weihao Yuan, Xiaodong Gu, Zuozhuo Dai, Siyu Zhu, Ping Tan

While recent works design increasingly complicated and powerful networks to directly regress the depth map, we take the path of CRFs optimization.

Monocular Depth Estimation

QuadTree Attention for Vision Transformers

1 code implementation ICLR 2022 Shitao Tang, Jiahui Zhang, Siyu Zhu, Ping Tan

Transformers have been successful in many vision tasks, thanks to their capability of capturing long-range dependency.

object-detection Object Detection +2

RAGO: Recurrent Graph Optimizer for Multiple Rotation Averaging

1 code implementation CVPR 2022 Heng Li, Zhaopeng Cui, Shuaicheng Liu, Ping Tan

Our framework is a real-time learning-to-optimize rotation averaging graph optimizer with a tiny size deployed for real-world applications.

RCP: Recurrent Closest Point for Point Cloud

1 code implementation CVPR 2022 Xiaodong Gu, Chengzhou Tang, Weihao Yuan, Zuozhuo Dai, Siyu Zhu, Ping Tan

In the experiments, we evaluate the proposed method on both the 3D scene flow estimation and the point cloud registration task.

Motion Estimation Point Cloud Registration +1

Learning To Zoom Inside Camera Imaging Pipeline

no code implementations CVPR 2022 Chengzhou Tang, Yuqiang Yang, Bing Zeng, Ping Tan, Shuaicheng Liu

To these ends, we design a method that receives a low-resolution RAW as the input and estimates the desired higher-resolution RAW jointly with the degradation model.

Image Super-Resolution Single Image Super Resolution

Neural Window Fully-Connected CRFs for Monocular Depth Estimation

no code implementations CVPR 2022 Weihao Yuan, Xiaodong Gu, Zuozhuo Dai, Siyu Zhu, Ping Tan

Estimating the accurate depth from a single image is challenging since it is inherently ambiguous and ill-posed.

Monocular Depth Estimation

SceneSqueezer: Learning To Compress Scene for Camera Relocalization

no code implementations CVPR 2022 Luwei Yang, Rakesh Shrestha, Wenbo Li, Shuaicheng Liu, Guofeng Zhang, Zhaopeng Cui, Ping Tan

Standard visual localization methods build a priori 3D model of a scene which is used to establish correspondences against the 2D keypoints in a query image.

Camera Relocalization Image Registration +3

GB-CosFace: Rethinking Softmax-based Face Recognition from the Perspective of Open Set Classification

no code implementations22 Nov 2021 Lizhe Liu, Mingqiang Chen, Xiaohao Chen, Siyu Zhu, Ping Tan

Our GB-CosFace introduces an adaptive global boundary to determine whether two face samples belong to the same identity so that the optimization objective is aligned with the testing process from the perspective of open set classification.

Classification Face Recognition

End-to-End Rotation Averaging With Multi-Source Propagation

1 code implementation CVPR 2021 Luwei Yang, Heng Li, Jamal Ahmed Rahim, Zhaopeng Cui, Ping Tan

These methods can suffer from bad initializations due to the noisy spanning tree or outliers in input relative rotations.

FloorPlanCAD: A Large-Scale CAD Drawing Dataset for Panoptic Symbol Spotting

no code implementations ICCV 2021 Zhiwen Fan, Lingjie Zhu, Honghua Li, Xiaohao Chen, Siyu Zhu, Ping Tan

The proposed CNN-GCN method achieved state-of-the-art (SOTA) performance on the task of semantic symbol spotting, and help us build a baseline network for the panoptic symbol spotting task.

Vector Graphics

CondLaneNet: a Top-to-down Lane Detection Framework Based on Conditional Convolution

2 code implementations ICCV 2021 Lizhe Liu, Xiaohao Chen, Siyu Zhu, Ping Tan

Modern deep-learning-based lane detection methods are successful in most scenarios but struggling for lane lines with complex topologies.

 Ranked #1 on Lane Detection on CurveLanes (using extra training data)

Lane Detection

Riggable 3D Face Reconstruction via In-Network Optimization

1 code implementation CVPR 2021 Ziqian Bai, Zhaopeng Cui, Xiaoming Liu, Ping Tan

This paper presents a method for riggable 3D face reconstruction from monocular images, which jointly estimates a personalized face rig and per-image parameters including expressions, poses, and illuminations.

3D Face Reconstruction

Learning Camera Localization via Dense Scene Matching

1 code implementation CVPR 2021 Shitao Tang, Chengzhou Tang, Rui Huang, Siyu Zhu, Ping Tan

We present a new method for scene agnostic camera localization using dense scene matching (DSM), where a cost volume is constructed between a query image and a scene.

Camera Localization

HumanGPS: Geodesic PreServing Feature for Dense Human Correspondences

1 code implementation CVPR 2021 Feitong Tan, Danhang Tang, Mingsong Dou, Kaiwen Guo, Rohit Pandey, Cem Keskin, Ruofei Du, Deqing Sun, Sofien Bouaziz, Sean Fanello, Ping Tan, yinda zhang

In this paper, we address the problem of building dense correspondences between human images under arbitrary camera viewpoints and body poses.

Learning Efficient Photometric Feature Transform for Multi-view Stereo

no code implementations ICCV 2021 Kaizhang Kang, Cihui Xie, Ruisheng Zhu, Xiaohe Ma, Ping Tan, Hongzhi Wu, Kun Zhou

We present a novel framework to learn to convert the perpixel photometric information at each view into spatially distinctive and view-invariant low-level features, which can be plugged into existing multi-view stereo pipeline for enhanced 3D reconstruction.

3D Reconstruction

AR Mapping: Accurate and Efficient Mapping for Augmented Reality

no code implementations27 Mar 2021 Rui Huang, Chuan Fang, Kejie Qiu, Le Cui, Zilong Dong, Siyu Zhu, Ping Tan

Secondly, we propose an AR mapping pipeline which takes the input from the scanning device and produces accurate AR Maps.

DRO: Deep Recurrent Optimizer for Structure-from-Motion

no code implementations24 Mar 2021 Xiaodong Gu, Weihao Yuan, Zuozhuo Dai, Chengzhou Tang, Siyu Zhu, Ping Tan

Specifically, our neural optimizer alternately updates the depth and camera poses through iterations to minimize a feature-metric cost, and two gated recurrent units iteratively improve the results by tracing historical information.

Interacting Two-Hand 3D Pose and Shape Reconstruction From Single Color Image

no code implementations ICCV 2021 Baowen Zhang, Yangang Wang, Xiaoming Deng, yinda zhang, Ping Tan, Cuixia Ma, Hongan Wang

In this paper, we propose a novel deep learning framework to reconstruct 3D hand poses and shapes of two interacting hands from a single color image.

MeshMVS: Multi-View Stereo Guided Mesh Reconstruction

no code implementations17 Oct 2020 Rakesh Shrestha, Zhiwen Fan, Qingkun Su, Zuozhuo Dai, Siyu Zhu, Ping Tan

Deep learning based 3D shape generation methods generally utilize latent features extracted from color images to encode the semantics of objects and guide the shape generation process.

3D Shape Generation

Channel Equilibrium Networks for Learning Deep Representation

1 code implementation ICML 2020 Wenqi Shao, Shitao Tang, Xingang Pan, Ping Tan, Xiaogang Wang, Ping Luo

Unlike prior arts that simply removed the inhibited channels, we propose to "wake them up" during training by designing a novel neural building block, termed Channel Equilibrium (CE) block, which enables channels at the same layer to contribute equally to the learned representation.

Active Lighting Recurrence by Parallel Lighting Analogy for Fine-Grained Change Detection

no code implementations22 Feb 2020 Qian Zhang, Wei Feng, Liang Wan, Fei-Peng Tian, Xiaowei Wang, Ping Tan

Besides, we also theoretically prove the invariance of our ALR approach to the ambiguity of normal and lighting decomposition.

Change Detection

Multi-View Photometric Stereo: A Robust Solution and Benchmark Dataset for Spatially Varying Isotropic Materials

no code implementations18 Jan 2020 Min Li, Zhenglong Zhou, Zhe Wu, Boxin Shi, Changyu Diao, Ping Tan

From a single viewpoint, we use a set of photometric stereo images to identify surface points with the same distance to the camera.

Cascade Cost Volume for High-Resolution Multi-View Stereo and Stereo Matching

4 code implementations CVPR 2020 Xiaodong Gu, Zhiwen Fan, Zuozhuo Dai, Siyu Zhu, Feitong Tan, Ping Tan

The deep multi-view stereo (MVS) and stereo matching approaches generally construct 3D cost volumes to regularize and regress the output depth or disparity.

3D Reconstruction Point Clouds +1

Leveraging Multi-view Image Sets for Unsupervised Intrinsic Image Decomposition and Highlight Separation

no code implementations17 Nov 2019 Renjiao Yi, Ping Tan, Stephen Lin

We present an unsupervised approach for factorizing object appearance into highlight, shading, and albedo layers, trained by multi-view real images.

Intrinsic Image Decomposition

A Neural Network for Detailed Human Depth Estimation from a Single Image

1 code implementation ICCV 2019 Sicong Tang, Feitong Tan, Kelvin Cheng, Zhaoyang Li, Siyu Zhu, Ping Tan

To achieve this goal, we separate the depth map into a smooth base shape and a residual detail shape and design a network with two branches to regress them respectively.

Depth Estimation

Channel Equilibrium Networks

no code implementations25 Sep 2019 Wenqi Shao, Shitao Tang, Xingang Pan, Ping Tan, Xiaogang Wang, Ping Luo

However, over-sparse CNNs have many collapsed channels (i. e. many channels with undesired zero values), impeding their learning ability.

Learning Guided Convolutional Network for Depth Completion

1 code implementation3 Aug 2019 Jie Tang, Fei-Peng Tian, Wei Feng, Jian Li, Ping Tan

It is thus necessary to complete the sparse LiDAR data, where a synchronized guidance RGB image is often used to facilitate this completion.

Autonomous Driving Depth Completion +1

BA-Net: Dense Bundle Adjustment Networks

no code implementations ICLR 2019 Chengzhou Tang, Ping Tan

The network first generates several basis depth maps according to the input image, and optimizes the final depth as a linear combination of these basis depth maps via feature-metric BA.

Batch DropBlock Network for Person Re-identification and Beyond

5 code implementations ICCV 2019 Zuozhuo Dai, Mingqiang Chen, Xiaodong Gu, Siyu Zhu, Ping Tan

In this paper, we propose the Batch DropBlock (BDB) Network which is a two branch network composed of a conventional ResNet-50 as the global branch and a feature dropping branch.

Image Retrieval Metric Learning +1

BA-Net: Dense Bundle Adjustment Network

1 code implementation13 Jun 2018 Chengzhou Tang, Ping Tan

The network first generates several basis depth maps according to the input image and optimizes the final depth as a linear combination of these basis depth maps via feature-metric BA.

Depth And Camera Motion

Very Large-Scale Global SfM by Distributed Motion Averaging

no code implementations CVPR 2018 Siyu Zhu, Runze Zhang, Lei Zhou, Tianwei Shen, Tian Fang, Ping Tan, Long Quan

This work proposes a divide-and-conquer framework to solve very large global SfM at the scale of millions of images.

Polarimetric Dense Monocular SLAM

no code implementations CVPR 2018 Luwei Yang, Feitong Tan, Ao Li, Zhaopeng Cui, Yasutaka Furukawa, Ping Tan

This paper presents a novel polarimetric dense monocular SLAM (PDMS) algorithm based on a polarization camera.

Faces as Lighting Probes via Unsupervised Deep Highlight Extraction

no code implementations ECCV 2018 Renjiao Yi, Chenyang Zhu, Ping Tan, Stephen Lin

We present a method for estimating detailed scene illumination using human faces in a single image.

Sparsely Aggregated Convolutional Networks

2 code implementations ECCV 2018 Ligeng Zhu, Ruizhi Deng, Michael Maire, Zhiwei Deng, Greg Mori, Ping Tan

We explore a key architectural aspect of deep convolutional neural networks: the pattern of internal skip connections used to aggregate outputs of earlier layers for consumption by deeper layers.

GSLAM: Initialization-robust Monocular Visual SLAM via Global Structure-from-Motion

no code implementations16 Aug 2017 Chengzhou Tang, Oliver Wang, Ping Tan

Many monocular visual SLAM algorithms are derived from incremental structure-from-motion (SfM) methods.

Visual Odometry

Polarimetric Multi-View Stereo

no code implementations CVPR 2017 Zhaopeng Cui, Jinwei Gu, Boxin Shi, Ping Tan, Jan Kautz

Multi-view stereo relies on feature correspondences for 3D reconstruction, and thus is fundamentally flawed in dealing with featureless scenes.

3D Reconstruction

Active Image-based Modeling with a Toy Drone

no code implementations2 May 2017 Rui Huang, Danping Zou, Richard Vaughan, Ping Tan

Image-based modeling techniques can now generate photo-realistic 3D models from images.

Hand3D: Hand Pose Estimation using 3D Neural Network

no code implementations7 Apr 2017 Xiaoming Deng, Shuo Yang, yinda zhang, Ping Tan, Liang Chang, Hongan Wang

We propose a novel 3D neural network architecture for 3D hand pose estimation from a single depth image.

3D Hand Pose Estimation

Joint Hand Detection and Rotation Estimation by Using CNN

no code implementations8 Dec 2016 Xiaoming Deng, Ye Yuan, Yinda Zhang, Ping Tan, Liang Chang, Shuo Yang, Hongan Wang

Hand detection is essential for many hand related tasks, e. g. parsing hand pose, understanding gesture, which are extremely useful for robotics and human-computer interaction.

General Classification Hand Detection +2

Attribute Recognition from Adaptive Parts

no code implementations5 Jul 2016 Luwei Yang, Ligen Zhu, Yichen Wei, Shuang Liang, Ping Tan

Previous part-based attribute recognition approaches perform part detection and attribute recognition in separate steps.

Automatic Fence Segmentation in Videos of Dynamic Scenes

no code implementations CVPR 2016 Renjiao Yi, Jue Wang, Ping Tan

We present a fully automatic approach to detect and segment fence-like occluders from a video clip.

A Benchmark Dataset and Evaluation for Non-Lambertian and Uncalibrated Photometric Stereo

no code implementations CVPR 2016 Boxin Shi, Zhe Wu, Zhipeng Mo, Dinglong Duan, Sai-Kit Yeung, Ping Tan

Recent progress on photometric stereo extends the technique to deal with general materials and unknown illumination conditions.

Towards Building an RGBD-M Scanner

no code implementations12 Mar 2016 Zhe Wu, Sai-Kit Yeung, Ping Tan

We present a portable device to capture both shape and reflectance of an indoor scene.

Global Structure-From-Motion by Similarity Averaging

no code implementations ICCV 2015 Zhaopeng Cui, Ping Tan

Depth images help to upgrade an essential matrix to a similarity transformation, which can determine the scale of relative translation.


Linear Global Translation Estimation with Feature Tracks

no code implementations6 Mar 2015 Zhaopeng Cui, Nianjuan Jiang, Chengzhou Tang, Ping Tan

This paper derives a novel linear position constraint for cameras seeing a common scene point, which leads to a direct linear method for global camera translation estimation.


SteadyFlow: Spatially Smooth Optical Flow for Video Stabilization

no code implementations CVPR 2014 Shuaicheng Liu, Lu Yuan, Ping Tan, Jian Sun

We propose a novel motion model, SteadyFlow, to represent the motion between neighboring video frames for stabilization.

Video Stabilization

Multi-view Photometric Stereo with Spatially Varying Isotropic Materials

no code implementations CVPR 2013 Zhenglong Zhou, Zhe Wu, Ping Tan

We present a method to capture both 3D shape and spatially varying reflectance with a multi-view photometric stereo technique that works for general isotropic materials.

Calibrating Photometric Stereo by Holistic Reflectance Symmetry Analysis

no code implementations CVPR 2013 Zhe Wu, Ping Tan

Under unknown directional lighting, the uncalibrated Lambertian photometric stereo algorithm recovers the shape of a smooth surface up to the generalized bas-relief (GBR) ambiguity.

Image Matting with Local and Nonlocal Smooth Priors

no code implementations CVPR 2013 Xiaowu Chen, Dongqing Zou, Steven Zhiying Zhou, Qinping Zhao, Ping Tan

This nonlocal smooth prior and the well known local smooth prior from matting Laplacian complement each other.

Image Matting

FrameBreak: Dramatic Image Extrapolation by Guided Shift-Maps

no code implementations CVPR 2013 Yinda Zhang, Jianxiong Xiao, James Hays, Ping Tan

We analyze the self-similarity of the guide image to generate a set of allowable local transformations and apply them to the input image.

Image Generation

Sketch2Photo: Internet Image Montage

no code implementations ACM Transactions on Graphics 2009 Tao Chen, Ming-Ming Cheng, Ping Tan, Ariel Shamir, Shi-Min Hu

The composed picture is generated by seamlessly stitching several photographs in agreement with the sketch and text labels; these are found by searching the Internet.

Image Retrieval

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