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A Combined Model of Outline Feature Map and CNN for Detection of People at the Beach
http://doi.org/10.5626/JOK.2019.46.1.31
As water safety accidents occur every year, many intelligent video surveillance systems are being developed to prevent water safety accidents. In this paper, we propose InsightCNN to accurately detect moving objects in complex images, such as beaches, in intelligent video surveillance systems. First, a basic model was constructed using 1x1 Convolution of Fully Convolutional Network and Residual Block of ResNet. We added an outline feature map that shows a key feature of the image, to the initial layer of the basic model. Results of the experiment demonstrate superiority of the idea of InsightCNN.
A Recognition of Violence Using Mobile Sensor Fusion in Intelligent Video Surveillance Systems
HyunIn Cha, KwangHo Song, Yoo-Sung Kim
http://doi.org/10.5626/JOK.2018.45.6.533
In this paper, we propose a violence recognition model by reflecting features extracted by concurrent and continuous action in intelligent CCTV through detecting group ROI(Region of Interest) from image. And then, proposed model uses extracted motion information obtained by using Dense Optical Flow algorithm in ROI and fusing of the acceleration and angular velocity information obtained from the inertial measurement unit of the mobile device possessed by actor. Experiments were performed to evaluate the reduction of the computation time of the proposed model and improvement of the performance degradation due to the occlusion. Result of experiment, the execution time was about 51 times faster and the accuracy of recognition of violence was improved by 11% compared to previous research methods. Therefore, the proposed model can overcome the problem of real-time failure due to excessive computation and can solve the problem of invisibility due to occlusion by actor in the image in recognition of violence.
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