An exhibitor demonstrates a security scanner that uses millimeter wave imaging at a science and technology convention in Xi'an, Shaanxi province, last year. The technology was introduced recently for use in civil aviation in China.Zhang Yuan / China News Service
Using a technology known as millimeter wave imaging, the security scanner can detect objects hidden under clothing, including nonmetallic objects, and can show their shape, size and position, the administration said.
民航局表示,使用毫米波人體成像技術進行安檢可以檢測出在衣物覆蓋下藏匿的物品,包括非金屬物品,并可以從圖像上獲取隱匿物品的形狀、大小和位置等信息。
毫米波人體成像技術(millimeter wave imaging)是目前全球安防領域的先進技術,已在美國、英國、荷蘭、澳大利亞、日本等國機場用于旅客人身安檢。這是安檢中常用的一種全身掃描(full body scanner)設備,具有對人體無害、穿透力強的特點,其發(fā)射功率不及手機電磁波輻射的千分之一(an emission strength less than 1-thousandth the electromagnetic radiation of a mobile phone),能準確識別人體攜帶物品,有效提高檢查的客觀性、準確性、針對性,降低安檢員的勞動強度,提升安檢效率。
民航局稱,未來,毫米波人體成像設備將逐步取代民用機場沿用26年的金屬探測門(walk-through metal detectors),旅客也將體驗到更加安全、高效的人身安檢服務。
【相關詞匯】
面部識別 facial recognition
指紋識別 fingerprint verification
靜脈驗證 finger vein verification
金屬探測器 metal detector
電子監(jiān)控 electronic monitoring system
嗅探犬 sniffer dogs