Search Results for author: Zhimin Gao

Found 20 papers, 5 papers with code

Human Pose-based Estimation, Tracking and Action Recognition with Deep Learning: A Survey

no code implementations19 Oct 2023 Lijuan Zhou, Xiang Meng, Zhihuan Liu, Mengqi Wu, Zhimin Gao, Pichao Wang

This paper presents a comprehensive survey of pose-based applications utilizing deep learning, encompassing pose estimation, pose tracking, and action recognition. Pose estimation involves the determination of human joint positions from images or image sequences.

2D Pose Estimation 3D Pose Estimation +3

Context-Aware Block Net for Small Object Detection

no code implementations IEEE Transactions on Cybernetics 2023 Lisha Cui, Pei Lv, Xiaoheng Jiang, Zhimin Gao, Bing Zhou, Luming Zhang, Ling Shao, Mingliang Xu

State-of-the-art object detectors usually progressively downsample the input image until it is represented by small feature maps, which loses the spatial information and compromises the representation of small objects.

Object object-detection +2

Focal and Global Spatial-Temporal Transformer for Skeleton-based Action Recognition

no code implementations6 Oct 2022 Zhimin Gao, Peitao Wang, Pei Lv, Xiaoheng Jiang, Qidong Liu, Pichao Wang, Mingliang Xu, Wanqing Li

Besides, these methods directly calculate the pair-wise global self-attention equally for all the joints in both the spatial and temporal dimensions, undervaluing the effect of discriminative local joints and the short-range temporal dynamics.

Action Recognition Skeleton Based Action Recognition

A Central Difference Graph Convolutional Operator for Skeleton-Based Action Recognition

1 code implementation13 Nov 2021 Shuangyan Miao, Yonghong Hou, Zhimin Gao, Mingliang Xu, Wanqing Li

This paper proposes a new graph convolutional operator called central difference graph convolution (CDGC) for skeleton based action recognition.

Action Recognition Skeleton Based Action Recognition

EDSC: An Event-Driven Smart Contract Platform

no code implementations14 Jan 2021 Mudabbir Kaleem, Keshav Kasichainula, Rabimba Karanjai, Lei Xu, Zhimin Gao, Lin Chen, Weidong Shi

This paper presents EDSC, a novel smart contract platform design based on the event-driven execution model as opposed to the traditionally employed transaction-driven execution model.

Distributed, Parallel, and Cluster Computing

Trear: Transformer-based RGB-D Egocentric Action Recognition

no code implementations5 Jan 2021 Xiangyu Li, Yonghong Hou, Pichao Wang, Zhimin Gao, Mingliang Xu, Wanqing Li

In this paper, we propose a \textbf{Tr}ansformer-based RGB-D \textbf{e}gocentric \textbf{a}ction \textbf{r}ecognition framework, called Trear.

Action Recognition Optical Flow Estimation

Transformer Guided Geometry Model for Flow-Based Unsupervised Visual Odometry

no code implementations8 Dec 2020 Xiangyu Li, Yonghong Hou, Pichao Wang, Zhimin Gao, Mingliang Xu, Wanqing Li

In this paper, we propose a method consisting of two camera pose estimators that deal with the information from pairwise images and a short sequence of images respectively.

Visual Odometry

Election with Bribed Voter Uncertainty: Hardness and Approximation Algorithm

no code implementations7 Nov 2018 Lin Chen, Lei Xu, Shouhuai Xu, Zhimin Gao, Weidong Shi

In this paper, we introduce a novel variant of the bribery problem, "Election with Bribed Voter Uncertainty" or BVU for short, accommodating the uncertainty that the vote of a bribed voter may or may not be counted.

MDSSD: Multi-scale Deconvolutional Single Shot Detector for Small Objects

1 code implementation18 May 2018 Lisha Cui, Rui Ma, Pei Lv, Xiaoheng Jiang, Zhimin Gao, Bing Zhou, Mingliang Xu

The performance of small object detection, however, is still less than satisfactory because of the deficiency of semantic information on shallow feature maps.

Object object-detection +1

Depth Pooling Based Large-scale 3D Action Recognition with Convolutional Neural Networks

no code implementations17 Mar 2018 Pichao Wang, Wanqing Li, Zhimin Gao, Chang Tang, Philip Ogunbona

This paper proposes three simple, compact yet effective representations of depth sequences, referred to respectively as Dynamic Depth Images (DDI), Dynamic Depth Normal Images (DDNI) and Dynamic Depth Motion Normal Images (DDMNI), for both isolated and continuous action recognition.

3D Action Recognition Gesture Recognition

Dual Long Short-Term Memory Networks for Sub-Character Representation Learning

1 code implementation23 Dec 2017 Han He, Lei Wu, Xiaokun Yang, Hua Yan, Zhimin Gao, Yi Feng, George Townsend

To build a concrete study and substantiate the efficiency of our neural architecture, we take Chinese Word Segmentation as a research case example.

Chinese Word Segmentation Representation Learning +1

Effective Neural Solution for Multi-Criteria Word Segmentation

1 code implementation7 Dec 2017 Han He, Lei Wu, Hua Yan, Zhimin Gao, Yi Feng, George Townsend

We present a simple yet elegant solution to train a single joint model on multi-criteria corpora for Chinese Word Segmentation (CWS).

Chinese Word Segmentation Sentence

Scene Flow to Action Map: A New Representation for RGB-D based Action Recognition with Convolutional Neural Networks

no code implementations CVPR 2017 Pichao Wang, Wanqing Li, Zhimin Gao, Yuyao Zhang, Chang Tang, Philip Ogunbona

Based on the scene flow vectors, we propose a new representation, namely, Scene Flow to Action Map (SFAM), that describes several long term spatio-temporal dynamics for action recognition.

3D Action Recognition

Large-scale Isolated Gesture Recognition Using Convolutional Neural Networks

no code implementations7 Jan 2017 Pichao Wang, Wanqing Li, Song Liu, Zhimin Gao, Chang Tang, Philip Ogunbona

This paper proposes three simple, compact yet effective representations of depth sequences, referred to respectively as Dynamic Depth Images (DDI), Dynamic Depth Normal Images (DDNI) and Dynamic Depth Motion Normal Images (DDMNI).

General Classification Gesture Recognition

Large-scale Continuous Gesture Recognition Using Convolutional Neural Networks

no code implementations22 Aug 2016 Pichao Wang, Wanqing Li, Song Liu, Yuyao Zhang, Zhimin Gao, Philip Ogunbona

This paper addresses the problem of continuous gesture recognition from sequences of depth maps using convolutional neutral networks (ConvNets).

General Classification Gesture Recognition

HEp-2 Cell Image Classification with Deep Convolutional Neural Networks

no code implementations10 Apr 2015 Zhimin Gao, Lei Wang, Luping Zhou, Jianjia Zhang

Efficient Human Epithelial-2 (HEp-2) cell image classification can facilitate the diagnosis of many autoimmune diseases.

Classification Data Augmentation +2

Deep Convolutional Neural Networks for Action Recognition Using Depth Map Sequences

no code implementations20 Jan 2015 Pichao Wang, Wanqing Li, Zhimin Gao, Jing Zhang, Chang Tang, Philip Ogunbona

The results show that our approach can achieve state-of-the-art results on the individual datasets and without dramatical performance degradation on the Combined Dataset.

Action Recognition Temporal Action Localization

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