Search Results for author: Yichen Wei

Found 40 papers, 21 papers with code

Dynamic Metric Learning: Towards a Scalable Metric Space to Accommodate Multiple Semantic Scales

1 code implementation CVPR 2021 Yifan Sun, Yuke Zhu, Yuhan Zhang, Pengkun Zheng, Xi Qiu, Chi Zhang, Yichen Wei

%We argue that such flexibility is also important for deep metric learning, because different visual concepts indeed correspond to different semantic scales.

Metric Learning

Prime-Aware Adaptive Distillation

1 code implementation ECCV 2020 Youcai Zhang, Zhonghao Lan, Yuchen Dai, Fangao Zeng, Yan Bai, Jie Chang, Yichen Wei

With ten teacher-student combinations on six datasets, PAD promotes the performance of existing distillation methods and outperforms recent state-of-the-art methods.

Knowledge Distillation Metric Learning +2

Spherical Feature Transform for Deep Metric Learning

no code implementations ECCV 2020 Yuke Zhu, Yan Bai, Yichen Wei

Consequently, the feature transform is performed by a rotation that respects the spherical data distributions.

Data Augmentation Metric Learning +1

Joint Multi-Dimension Pruning via Numerical Gradient Update

no code implementations18 May 2020 Zechun Liu, Xiangyu Zhang, Zhiqiang Shen, Zhe Li, Yichen Wei, Kwang-Ting Cheng, Jian Sun

To tackle these three naturally different dimensions, we proposed a general framework by defining pruning as seeking the best pruning vector (i. e., the numerical value of layer-wise channel number, spacial size, depth) and construct a unique mapping from the pruning vector to the pruned network structures.

Angle-based Search Space Shrinking for Neural Architecture Search

1 code implementation ECCV 2020 Yiming Hu, Yuding Liang, Zichao Guo, Ruosi Wan, Xiangyu Zhang, Yichen Wei, Qingyi Gu, Jian Sun

Comprehensive experiments show that ABS can dramatically enhance existing NAS approaches by providing a promising shrunk search space.

Neural Architecture Search

Data Uncertainty Learning in Face Recognition

no code implementations CVPR 2020 Jie Chang, Zhonghao Lan, Changmao Cheng, Yichen Wei

This work applies data uncertainty learning to face recognition, such that the feature (mean) and uncertainty (variance) are learnt simultaneously, for the first time.

Face Recognition

Balanced Alignment for Face Recognition: A Joint Learning Approach

no code implementations23 Mar 2020 Huawei Wei, Peng Lu, Yichen Wei

There lacks an understanding of how important face alignment is and how it should be performed, for recognition.

Face Alignment Face Recognition

Circle Loss: A Unified Perspective of Pair Similarity Optimization

10 code implementations CVPR 2020 Yifan Sun, Changmao Cheng, Yuhan Zhang, Chi Zhang, Liang Zheng, Zhongdao Wang, Yichen Wei

This paper provides a pair similarity optimization viewpoint on deep feature learning, aiming to maximize the within-class similarity $s_p$ and minimize the between-class similarity $s_n$.

 Ranked #1 on Face Verification on IJB-C (training dataset metric)

Face Recognition Face Verification +3

Towards Stabilizing Batch Statistics in Backward Propagation of Batch Normalization

1 code implementation ICLR 2020 Junjie Yan, Ruosi Wan, Xiangyu Zhang, Wei zhang, Yichen Wei, Jian Sun

Therefore many modified normalization techniques have been proposed, which either fail to restore the performance of BN completely, or have to introduce additional nonlinear operations in inference procedure and increase huge consumption.

3D Dense Face Alignment via Graph Convolution Networks

no code implementations11 Apr 2019 Huawei Wei, Shuang Liang, Yichen Wei

Recently, 3D face reconstruction and face alignment tasks are gradually combined into one task: 3D dense face alignment.

3D Face Reconstruction Face Alignment

Re-Identification Supervised Texture Generation

no code implementations CVPR 2019 Jian Wang, Yunshan Zhong, Yachun Li, Chi Zhang, Yichen Wei

The estimation of 3D human body pose and shape from a single image has been extensively studied in recent years.

Person Re-Identification Texture Synthesis

Simple Baselines for Human Pose Estimation and Tracking

18 code implementations ECCV 2018 Bin Xiao, Haiping Wu, Yichen Wei

There has been significant progress on pose estimation and increasing interests on pose tracking in recent years.

Pose Tracking

Towards High Performance Video Object Detection for Mobiles

3 code implementations16 Apr 2018 Xizhou Zhu, Jifeng Dai, Xingchi Zhu, Yichen Wei, Lu Yuan

In this paper, we present a light weight network architecture for video object detection on mobiles.

object-detection Video Object Detection

Learning Region Features for Object Detection

no code implementations ECCV 2018 Jiayuan Gu, Han Hu, Li-Wei Wang, Yichen Wei, Jifeng Dai

While most steps in the modern object detection methods are learnable, the region feature extraction step remains largely hand-crafted, featured by RoI pooling methods.

object-detection Object Detection

Pseudo Mask Augmented Object Detection

no code implementations CVPR 2018 Xiangyun Zhao, Shuang Liang, Yichen Wei

In this work, we present a novel and effective framework to facilitate object detection with the instance-level segmentation information that is only supervised by bounding box annotation.

Instance Segmentation object-detection +3

Relation Networks for Object Detection

6 code implementations CVPR 2018 Han Hu, Jiayuan Gu, Zheng Zhang, Jifeng Dai, Yichen Wei

Although it is well believed for years that modeling relations between objects would help object recognition, there has not been evidence that the idea is working in the deep learning era.

object-detection Object Detection +1

Compositional Human Pose Regression

1 code implementation ICCV 2017 Xiao Sun, Jiaxiang Shang, Shuang Liang, Yichen Wei

A central problem is that the structural information in the pose is not well exploited in the previous regression methods.

3D Human Pose Estimation 3D Pose Estimation

Flow-Guided Feature Aggregation for Video Object Detection

2 code implementations ICCV 2017 Xizhou Zhu, Yujie Wang, Jifeng Dai, Lu Yuan, Yichen Wei

The accuracy of detection suffers from degenerated object appearances in videos, e. g., motion blur, video defocus, rare poses, etc.

object-detection Video Object Detection +1

Deformable Convolutional Networks

37 code implementations ICCV 2017 Jifeng Dai, Haozhi Qi, Yuwen Xiong, Yi Li, Guodong Zhang, Han Hu, Yichen Wei

Convolutional neural networks (CNNs) are inherently limited to model geometric transformations due to the fixed geometric structures in its building modules.

object-detection Object Detection +1

Deep Feature Flow for Video Recognition

3 code implementations CVPR 2017 Xizhou Zhu, Yuwen Xiong, Jifeng Dai, Lu Yuan, Yichen Wei

Yet, it is non-trivial to transfer the state-of-the-art image recognition networks to videos as per-frame evaluation is too slow and unaffordable.

Video Recognition Video Semantic Segmentation

Deep Kinematic Pose Regression

no code implementations17 Sep 2016 Xingyi Zhou, Xiao Sun, Wei zhang, Shuang Liang, Yichen Wei

In this work, we propose to directly embed a kinematic object model into the deep neutral network learning for general articulated object pose estimation.

3D Human Pose Estimation

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.

Model-based Deep Hand Pose Estimation

1 code implementation22 Jun 2016 Xingyi Zhou, Qingfu Wan, Wei zhang, xiangyang xue, Yichen Wei

For the first time, we show that embedding such a non-linear generative process in deep learning is feasible for hand pose estimation.

Hand Pose Estimation

Object Proposal by Multi-Branch Hierarchical Segmentation

no code implementations CVPR 2015 Chaoyang Wang, Long Zhao, Shuang Liang, Liqing Zhang, Jinyuan Jia, Yichen Wei

Hierarchical segmentation based object proposal methods have become an important step in modern object detection paradigm.

object-detection Object Detection

Cascaded Hand Pose Regression

no code implementations CVPR 2015 Xiao Sun, Yichen Wei, Shuang Liang, Xiaoou Tang, Jian Sun

We extends the previous 2D cascaded object pose regression work [9] in two aspects so that it works better for 3D articulated objects.

3D Hand Pose Estimation

Global Refinement of Random Forest

no code implementations CVPR 2015 Shaoqing Ren, Xudong Cao, Yichen Wei, Jian Sun

The global pruning is developed to reduce the model size as well as the over-fitting risk.

Face Alignment at 3000 FPS via Regressing Local Binary Features

no code implementations CVPR 2014 Shaoqing Ren, Xudong Cao, Yichen Wei, Jian Sun

The locality principle guides us to learn a set of highly discriminative local binary features for each facial landmark independently.

Face Alignment

Saliency Optimization from Robust Background Detection

no code implementations CVPR 2014 Wangjiang Zhu, Shuang Liang, Yichen Wei, Jian Sun

However, their usage of boundary prior is very simple, fragile, and the integration with other cues is mostly heuristic.

object-detection RGB Salient Object Detection +1

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