A Behavior Recognition Algorithm Based on 3D-VGG-GAP Network

Author(s):  
Jin Wu ◽  
Wei Dai ◽  
Heng Wen ◽  
Wenting Pang
2021 ◽  
Author(s):  
Jian Xie ◽  
Xi Li ◽  
Da Hong Xu ◽  
Hua Ling Zhou ◽  
Mengzi Liang ◽  
...  

2016 ◽  
Vol 12 (11) ◽  
pp. 72
Author(s):  
Yan Chen

To improve the efficiency of data analysis in the process of mobile phone users’ interaction, an algorithm on behavior recognition of mobile phone users based on sensor networks is proposed in this paper. The algorithm and model uses the multidimensional receptive-field function and the support vector method to improve the accuracy and efficiency. Simulation result shows that the algorithm and the new model can improve the performance of analysis efficiency and correctness substantially.


2020 ◽  
Vol 16 (2) ◽  
pp. 155014772090362
Author(s):  
Lei Tang ◽  
Jingchi Jia ◽  
Zongtao Duan ◽  
Jingyu Ma ◽  
Xin Wang ◽  
...  

The tracking and behavior recognition of heavy-duty trucks on roadways are keys for the development of automated heavy-duty trucks and an advanced driver assistance system. The spatiotemporal information of trucks from trajectory tracking and motions learnt from behavior analysis can be employed to predict possible driving risks and generate safe motion to avoid roadway accidents. This article presents a unified tracking and behavior recognition algorithm that can model the mobility of heavy-duty trucks on long inclined roadways. Random noise within the sampled elevation data is addressed by time-based segmentation to extract time-continuous samples at geographical locations. A Kalman filter is first used to distinguish error offsets from random noise and to estimate the distribution of truck elevations for different time intervals. A Markov chain Monte Carlo model is then applied to classify truck behaviors based on the change in elevation between two geographical locations. A heavy-duty truck mobility (HVMove) model is constructed based on the map information to apply the roadway geometry to the tracking and behavior recognition algorithm. We develop an extended Metropolis–Hastings algorithm to tune the parameters of the HVMove model. The proposed model is verified and evaluated through extensive experiments based on a real-world trajectory dataset covering sections of an expressway and national and provincial highways. From the experimental results, we conclude that the HVMove model provides sufficient accuracy and efficiency for automated heavy-duty trucks and advanced driver assistance system applications. In addition, HVMove can generate maps with the elevation information marked automatically.


2021 ◽  
Vol 15 ◽  
Author(s):  
Hui Liu ◽  
Yang Liu ◽  
Ran Zhang ◽  
Xia Wu

The study of student behavior analysis in class plays a key role in teaching and educational reforms that can help the university to find an effective way to improve students' learning efficiency and innovation ability. It is also one of the effective ways to cultivate innovative talents. The traditional behavior recognition methods have many disadvantages, such as poor robustness and low efficiency. From a heterogeneous view perception point of view, it introduces the students' behavior recognition. Therefore, we propose a 3-D multiscale residual dense network from heterogeneous view perception for analysis of student behavior recognition in class. First, the proposed method adopts 3-D multiscale residual dense blocks as the basic module of the network, and the module extracts the hierarchical features of students' behavior through the densely connected convolutional layer. Second, the local dense feature of student behavior is to learn adaptively. Third, the residual connection module is used to improve the training efficiency. Finally, experimental results show that the proposed algorithm has good robustness and transfer learning ability compared with the state-of-the-art behavior recognition algorithms, and it can effectively handle multiple video behavior recognition tasks. The design of an intelligent human behavior recognition algorithm has great practical significance to analyze the learning and teaching of students in the class.


2020 ◽  
Vol 95 ◽  
pp. 101868 ◽  
Author(s):  
Man Zhou ◽  
Lansheng Han ◽  
Hongwei Lu ◽  
Cai Fu ◽  
Dezhi An

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