2060-T8 plastic jigger Al-Li alloy was friction stir butt welded under natural and water cooling conditions.Microstructures and mechanical properties of the welding joints were mainly compared and discussed.By spraying water on the top surface of stir zone, the grain size was reduced, attributing to the improvement of microhardness.The maximum tens
Multimodal Video Analysis for Crowd Anomaly Detection Using Open Access Tourism Cameras
In this article, we propose the detection of crowd anomalies through the extraction of information in the form of time series in video format using a multimodal approach.Through pattern recognition algorithms and segmentation, informative measures of the number of people and image occupancy are extracted at regular intervals, which are then analyze