Building indoor dangerous behavior recognition is a specific application in the field of abnormal human recognition.A human dangerous behavior recognition method based on LSTM-GCN with attention mechanism(GLA)model wa...Building indoor dangerous behavior recognition is a specific application in the field of abnormal human recognition.A human dangerous behavior recognition method based on LSTM-GCN with attention mechanism(GLA)model was proposed aiming at the problem that the existing human skeleton-based action recognition methods cannot fully extract the temporal and spatial features.The network connects GCN and LSTMnetwork in series,and inputs the skeleton sequence extracted by GCN that contains spatial information into the LSTM layer for time sequence feature extraction,which fully excavates the temporal and spatial features of the skeleton sequence.Finally,an attention layer is designed to enhance the features of key bone points,and Softmax is used to classify and identify dangerous behaviors.The dangerous behavior datasets are derived from NTU-RGB+D and Kinetics data sets.Experimental results show that the proposed method can effectively identify some dangerous behaviors in the building,and its accuracy is higher than those of other similar methods.展开更多
Dangerous,vacant and abandoned buildings traditionally have been considered as negative elements in the urban environment.Their“harmful”properties include hosting“nests”of criminality(drug trafficking etc.),becomi...Dangerous,vacant and abandoned buildings traditionally have been considered as negative elements in the urban environment.Their“harmful”properties include hosting“nests”of criminality(drug trafficking etc.),becoming a threat to public safety(easy to catch fire,collapsing building materials etc.),degrading conditions of public health(rubbish damp,rats infesting etc.),affecting property values in the surrounding areas,loading their owners with taxes(property tax etc.)and no revenues,imposing negative impacts on the aesthetics and the quality of the urban environment.On the other hand,they might trigger opportunities for urban regeneration,provide new available spaces for urban uses if demolished,and provide a stock of urban elements of special characteristics,to be used for the formulation of housing policies.The present article reviews urban policies focusing on these properties and assesses existing implementations.The various factors characterizing the above initiatives constitute challenging planning and legal cases.The complexity of the issue of abandoned buildings in the urban environment,is to be tested in the case of the city of Larissa,Greece.Legal and planning inadequacies in dealing with the above will be investigated,and proposals for the formulation of policies and legal tools will be synthesized.展开更多
文摘Building indoor dangerous behavior recognition is a specific application in the field of abnormal human recognition.A human dangerous behavior recognition method based on LSTM-GCN with attention mechanism(GLA)model was proposed aiming at the problem that the existing human skeleton-based action recognition methods cannot fully extract the temporal and spatial features.The network connects GCN and LSTMnetwork in series,and inputs the skeleton sequence extracted by GCN that contains spatial information into the LSTM layer for time sequence feature extraction,which fully excavates the temporal and spatial features of the skeleton sequence.Finally,an attention layer is designed to enhance the features of key bone points,and Softmax is used to classify and identify dangerous behaviors.The dangerous behavior datasets are derived from NTU-RGB+D and Kinetics data sets.Experimental results show that the proposed method can effectively identify some dangerous behaviors in the building,and its accuracy is higher than those of other similar methods.
文摘Dangerous,vacant and abandoned buildings traditionally have been considered as negative elements in the urban environment.Their“harmful”properties include hosting“nests”of criminality(drug trafficking etc.),becoming a threat to public safety(easy to catch fire,collapsing building materials etc.),degrading conditions of public health(rubbish damp,rats infesting etc.),affecting property values in the surrounding areas,loading their owners with taxes(property tax etc.)and no revenues,imposing negative impacts on the aesthetics and the quality of the urban environment.On the other hand,they might trigger opportunities for urban regeneration,provide new available spaces for urban uses if demolished,and provide a stock of urban elements of special characteristics,to be used for the formulation of housing policies.The present article reviews urban policies focusing on these properties and assesses existing implementations.The various factors characterizing the above initiatives constitute challenging planning and legal cases.The complexity of the issue of abandoned buildings in the urban environment,is to be tested in the case of the city of Larissa,Greece.Legal and planning inadequacies in dealing with the above will be investigated,and proposals for the formulation of policies and legal tools will be synthesized.
