Search Results for author: Chunhong Pan

Found 37 papers, 11 papers with code

PackDet: Packed Long-Head Object Detector

1 code implementation ECCV 2020 Kun Ding, Guojin He, Huxiang Gu, Zisha Zhong, Shiming Xiang, Chunhong Pan

State-of-the-art object detectors exploit multi-branch structure and predict objects at several different scales, although substantially boosted accuracy is acquired, low efficiency is inevitable as fragmented structure is hardware unfriendly.

Differentiable Convolution Search for Point Cloud Processing

no code implementations ICCV 2021 Xing Nie, Yongcheng Liu, Shaohong Chen, Jianlong Chang, Chunlei Huo, Gaofeng Meng, Qi Tian, Weiming Hu, Chunhong Pan

It can work in a purely data-driven manner and thus is capable of auto-creating a group of suitable convolutions for geometric shape modeling.

HAN: An Efficient Hierarchical Self-Attention Network for Skeleton-Based Gesture Recognition

no code implementations25 Jun 2021 Jianbo Liu, Ying Wang, Shiming Xiang, Chunhong Pan

Previous methods for skeleton-based gesture recognition mostly arrange the skeleton sequence into a pseudo picture or spatial-temporal graph and apply deep Convolutional Neural Network (CNN) or Graph Convolutional Network (GCN) for feature extraction.

Gesture Recognition Hierarchical structure

Spatio-Temporal Graph Structure Learning for Traffic Forecasting

no code implementations AAAI 2020 Qi Zhang, Jianlong Chang, Gaofeng Meng, Shiming Xiang, Chunhong Pan

To address these issues, we propose a novel framework named Structure Learning Convolution (SLC) that enables to extend the traditional convolutional neural network (CNN) to graph domains and learn the graph structure for traffic forecasting.

Graph structure learning Time Series +1

AugFPN: Improving Multi-scale Feature Learning for Object Detection

2 code implementations CVPR 2020 Chaoxu Guo, Bin Fan, Qian Zhang, Shiming Xiang, Chunhong Pan

In this paper, we begin by first analyzing the design defects of feature pyramid in FPN, and then introduce a new feature pyramid architecture named AugFPN to address these problems.

Object Detection

Learning Where to Focus for Efficient Video Object Detection

1 code implementation ECCV 2020 Zhengkai Jiang, Yu Liu, Ceyuan Yang, Jihao Liu, Peng Gao, Qian Zhang, Shiming Xiang, Chunhong Pan

Transferring existing image-based detectors to the video is non-trivial since the quality of frames is always deteriorated by part occlusion, rare pose, and motion blur.

Optical Flow Estimation Video Object Detection

Guiding the Flowing of Semantics: Interpretable Video Captioning via POS Tag

no code implementations IJCNLP 2019 Xinyu Xiao, Lingfeng Wang, Bin Fan, Shinming Xiang, Chunhong Pan

To address these problems, we propose an Adaptive Semantic Guidance Network (ASGN), which instantiates the whole video semantics to different POS-aware semantics with the supervision of part of speech (POS) tag.

POS Video Captioning

FontGAN: A Unified Generative Framework for Chinese Character Stylization and De-stylization

no code implementations28 Oct 2019 Xiyan Liu, Gaofeng Meng, Shiming Xiang, Chunhong Pan

In our model, we decouple character images into style representation and content representation, which facilitates more precise control of these two types of variables, thereby improving the quality of the generated results.

Differentiable Architecture Search with Ensemble Gumbel-Softmax

no code implementations6 May 2019 Jianlong Chang, Xinbang Zhang, Yiwen Guo, Gaofeng Meng, Shiming Xiang, Chunhong Pan

For network architecture search (NAS), it is crucial but challenging to simultaneously guarantee both effectiveness and efficiency.

Neural Architecture Search

Deep Discriminative Clustering Analysis

no code implementations5 May 2019 Jianlong Chang, Yiwen Guo, Lingfeng Wang, Gaofeng Meng, Shiming Xiang, Chunhong Pan

Traditional clustering methods often perform clustering with low-level indiscriminative representations and ignore relationships between patterns, resulting in slight achievements in the era of deep learning.

LFFD: A Light and Fast Face Detector for Edge Devices

15 code implementations24 Apr 2019 Yonghao He, Dezhong Xu, Lifang Wu, Meng Jian, Shiming Xiang, Chunhong Pan

Under the new schema, the proposed method can achieve superior accuracy (WIDER FACE Val/Test -- Easy: 0. 910/0. 896, Medium: 0. 881/0. 865, Hard: 0. 780/0. 770; FDDB -- discontinuous: 0. 973, continuous: 0. 724).

Face Detection

Relation-Shape Convolutional Neural Network for Point Cloud Analysis

4 code implementations CVPR 2019 Yongcheng Liu, Bin Fan, Shiming Xiang, Chunhong Pan

Specifically, the convolutional weight for local point set is forced to learn a high-level relation expression from predefined geometric priors, between a sampled point from this point set and the others.

Ranked #17 on 3D Part Segmentation on ShapeNet-Part (Instance Average IoU metric)

3D Part Segmentation 3D Point Cloud Classification

Progressive Sparse Local Attention for Video object detection

no code implementations ICCV 2019 Chaoxu Guo, Bin Fan, Jie Gu, Qian Zhang, Shiming Xiang, Veronique Prinet, Chunhong Pan

Instead of relying on optical flow, this paper proposes a novel module called Progressive Sparse Local Attention (PSLA), which establishes the spatial correspondence between features across frames in a local region with progressively sparser stride and uses the correspondence to propagate features.

Optical Flow Estimation Video Object Detection

Structure-Aware Convolutional Neural Networks

1 code implementation NeurIPS 2018 Jianlong Chang, Jie Gu, Lingfeng Wang, Gaofeng Meng, Shiming Xiang, Chunhong Pan

Convolutional neural networks (CNNs) are inherently subject to invariable filters that can only aggregate local inputs with the same topological structures.

Action Recognition Activity Detection +3

Joint Neural Architecture Search and Quantization

no code implementations23 Nov 2018 Yukang Chen, Gaofeng Meng, Qian Zhang, Xinbang Zhang, Liangchen Song, Shiming Xiang, Chunhong Pan

Here our goal is to automatically find a compact neural network model with high performance that is suitable for mobile devices.

Model Compression Neural Architecture Search +1

Multi-Label Image Classification via Knowledge Distillation from Weakly-Supervised Detection

1 code implementation16 Sep 2018 Yongcheng Liu, Lu Sheng, Jing Shao, Junjie Yan, Shiming Xiang, Chunhong Pan

Specifically, given the image-level annotations, (1) we first develop a weakly-supervised detection (WSD) model, and then (2) construct an end-to-end multi-label image classification framework augmented by a knowledge distillation module that guides the classification model by the WSD model according to the class-level predictions for the whole image and the object-level visual features for object RoIs.

Classification General Classification +3

Exploiting Vector Fields for Geometric Rectification of Distorted Document Images

no code implementations ECCV 2018 Gaofeng MENG, Yuanqi SU, Ying Wu, Shiming Xiang, Chunhong Pan

This paper proposes a segment-free method for geometric rectification of a distorted document image captured by a hand-held camera.

Rectification

Semantic Labeling in Very High Resolution Images via a Self-Cascaded Convolutional Neural Network

1 code implementation30 Jul 2018 Yongcheng Liu, Bin Fan, Lingfeng Wang, Jun Bai, Shiming Xiang, Chunhong Pan

Specifically, for confusing manmade objects, ScasNet improves the labeling coherence with sequential global-to-local contexts aggregation.

AMVH: Asymmetric Multi-Valued Hashing

no code implementations CVPR 2017 Cheng Da, Shibiao Xu, Kun Ding, Gaofeng Meng, Shiming Xiang, Chunhong Pan

(2) A multi-integer-embedding is employed for compressing the whole database, which is modeled by binary sparse representation with fixed sparsity.

Do We Need Binary Features for 3D Reconstruction?

no code implementations14 Feb 2016 Bin Fan, Qingqun Kong, Wei Sui, Zhiheng Wang, Xinchao Wang, Shiming Xiang, Chunhong Pan, Pascal Fua

Binary features have been incrementally popular in the past few years due to their low memory footprints and the efficient computation of Hamming distance between binary descriptors.

3D Reconstruction

kNN Hashing With Factorized Neighborhood Representation

no code implementations ICCV 2015 Kun Ding, Chunlei Huo, Bin Fan, Chunhong Pan

Hashing is very effective for many tasks in reducing the processing time and in compressing massive databases.

Extraction of Virtual Baselines From Distorted Document Images Using Curvilinear Projection

no code implementations ICCV 2015 Gaofeng Meng, Zuming Huang, Yonghong Song, Shiming Xiang, Chunhong Pan

In this paper, we propose an efficient method for accurate extraction of these virtual visual cues from a curved document image.

Accurate Urban Road Centerline Extraction from VHR Imagery via Multiscale Segmentation and Tensor Voting

no code implementations25 Aug 2015 Guangliang Cheng, Feiyun Zhu, Shiming Xiang, Chunhong Pan

Finally, to overcome the ineffectiveness of current methods in the road intersection, a fitting based road centerline connection algorithm is proposed.

Cross-Modal Similarity Learning : A Low Rank Bilinear Formulation

no code implementations18 Nov 2014 Cuicui Kang, Shengcai Liao, Yonghao He, Jian Wang, Wenjia Niu, Shiming Xiang, Chunhong Pan

A new approach to the problem has been raised which intends to match features of different modalities directly.

Metric Learning

10,000+ Times Accelerated Robust Subset Selection (ARSS)

no code implementations12 Sep 2014 Feiyun Zhu, Bin Fan, Xinliang Zhu, Ying Wang, Shiming Xiang, Chunhong Pan

Subset selection from massive data with noised information is increasingly popular for various applications.

Ranked #6 on Named Entity Recognition on SciERC (using extra training data)

Action Recognition Collaborative Filtering +16

Effective Spectral Unmixing via Robust Representation and Learning-based Sparsity

no code implementations2 Sep 2014 Feiyun Zhu, Ying Wang, Bin Fan, Gaofeng Meng, Chunhong Pan

Based on this observation, we exploit a learning-based sparsity method to simultaneously learn the HU results and a sparse guidance map.

Hyperspectral Unmixing

Structured Sparse Method for Hyperspectral Unmixing

no code implementations19 Mar 2014 Feiyun Zhu, Ying Wang, Shiming Xiang, Bin Fan, Chunhong Pan

With this constraint, our method can learn a compact space, where highly similar pixels are grouped to share correlated sparse representations.

Hyperspectral Unmixing

Spectral Unmixing via Data-guided Sparsity

no code implementations13 Mar 2014 Feiyun Zhu, Ying Wang, Bin Fan, Gaofeng Meng, Shiming Xiang, Chunhong Pan

Hyperspectral unmixing, the process of estimating a common set of spectral bases and their corresponding composite percentages at each pixel, is an important task for hyperspectral analysis, visualization and understanding.

Hyperspectral Unmixing

Robust Hyperspectral Unmixing with Correntropy based Metric

no code implementations31 May 2013 Ying Wang, Chunhong Pan, Shiming Xiang, Feiyun Zhu

In addition, with sparsity constraints, our model can naturally generate sparse abundances.

Hyperspectral Unmixing

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