人群行为分类数据库--Novel Dataset for Fine-grained Abnormal Behavior Understanding in Crowd

人群行为分类数据库
本文介绍了一个用于人群行为分类的新数据库,包含5类行为:Panic、Fight、Congestion、Obstacle和Neutral。数据库由31段视频组成,约44,000个正常和异常视频片段,适用于人群密度变化的场景。文章还介绍了两种基准算法:Dense Trajectories和Histogram of Oriented Tracklets (HOT),并提出了一种基于表情的人群异常检测方法。

Novel Dataset for Fine-grained Abnormal Behavior Understanding in Crowd
数据库:https://github.com/hosseinm/med

本文针对人群行为分类建立了一个数据库,这里有5类:Panic,Fight,Congestion,Obstacle ,Neutral

目前已有的数据库情况:
这里写图片描述

这里写图片描述

2 Proposed Dataset

这里写图片描述

The introduced dataset consists of 31 video sequences in total or as about 44,000 normal and abnormal video clips.
The videos were recorded as 30 frames per second using a fixed video camera elevated at a height, overlooking individual walkways and the video resolution is 554 * 235. The crowd density in the scene was changeable, ranging from sparse to very crowded.

这里写图片描述

这里写图片描述

3 Proposed Benchmark

这里我们在新数据库上测试了两类算法:

Dense trajectories [25,26](SeeFig. 4)which have shown to be efficient for action recognition are applied as first method on our dataset.

As second benchmark, we use Histogramof OrientedTracklet (HOT) [14, 15,16] descriptor, which is suitable for the task of abnormality detection

这里写图片描述

这里写图片描述

这里写图片描述

Emotion-Based Crowd Representation for Abnormality Detection
这篇文献主要是在这个数据库基础上加入 人群表情信息来 辅助 人群行为的分类。

这里写图片描述

这里写图片描述

这里写图片描述

这里写图片描述

Object detection in remote sensing images is a challenging task due to the complex backgrounds, diverse object shapes and sizes, and varying imaging conditions. To address these challenges, fine-grained feature enhancement can be employed to improve object detection accuracy. Fine-grained feature enhancement is a technique that extracts and enhances features at multiple scales and resolutions to capture fine details of objects. This technique includes two main steps: feature extraction and feature enhancement. In the feature extraction step, convolutional neural networks (CNNs) are used to extract features from the input image. The extracted features are then fed into a feature enhancement module, which enhances the features by incorporating contextual information and fine-grained details. The feature enhancement module employs a multi-scale feature fusion technique to combine features at different scales and resolutions. This technique helps to capture fine details of objects and improve the accuracy of object detection. To evaluate the effectiveness of fine-grained feature enhancement for object detection in remote sensing images, experiments were conducted on two datasets: the NWPU-RESISC45 dataset and the DOTA dataset. The experimental results demonstrate that fine-grained feature enhancement can significantly improve the accuracy of object detection in remote sensing images. The proposed method outperforms state-of-the-art object detection methods on both datasets. In conclusion, fine-grained feature enhancement is an effective technique to improve the accuracy of object detection in remote sensing images. This technique can be applied to a wide range of applications, such as urban planning, disaster management, and environmental monitoring.
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符
 
红包 添加红包
表情包 插入表情
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值