Intelligentized crowd surveillance technology arises at the very moment. It mainly includes both density estimation and motion estimation.
智能化人群监控技术应运而生,它主要包括人群的密度估计和运动估计两部分内容。
·2,447,543篇论文数据，部分数据来源于NoteExpress
And police have purchased additional crowd control equipment, including six helicopters, and 300 mobile surveillance cameras.
VOA: standard.2009.06.12
Initially, Tehran provided non-lethal aid, like crowd suppression materials and Internet surveillance capabilities.
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The surveillance camera images show the panicked crowd scrambling for cover.
CNN: Police arrest suspect in New Orleans Mother's Day shooting
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