Video streaming anomalous event detecting method based on measure query entropy
A technology for abnormal events, video streaming, used in computer parts, instruments, character and pattern recognition, etc.
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[0033] The video sequence used in this implementation comes from the traffic database QMUL (The Queen Mary University of London) with a frame rate of 25pfs and a resolution of 360×288. figure 2 For video surveillance scenarios. The QMUL database comes from Queen Mary, University of London, and is a database dedicated to the analysis of complex video surveillance scenarios. This embodiment uses a weakly supervised joint topic model, the number of normal topics is set to 20, and each abnormal event corresponds to a topic. The abnormal events to be identified in this embodiment are U-turn events and near-conflict events. Table 1 shows the sample settings of this embodiment.
[0034] Table 1 Sample Setup Table
[0035]
[0036] The training of model in the present embodiment is realized by active learning method of the present invention, and technical scheme comprises the following steps:
[0037] 1) Utilize a limited number of reliable labeled training samples D l ={X 1...
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