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VOA常速英语(翻译+字幕+讲解):能再现犯罪现场的3D技术

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Scientists at the Institute of Forensic Medicine in Zurich, Switzerland, are developing technologies that can help police investigators, judges and lawyers better visualize crime scenes and even perform virtual autopsies.

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The Oculus Rift headset, used for video games, coupled with specially developed software called Forensic Holodeck, re-creates crime scenes using hand-held 3-D scanners. Investigators use the 3-D images to reconstruct the actual crime based on witness accounts and recordings from surveillance cameras.

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In a recent case, the technology helped prosecutors prove a gunman’s actions, leading to his conviction.

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Radiologist Steffen Ross of the Zurich institute said that with the equipment, "we scan the crime scene and we are also able to scan the dead body, if there is a dead body involved, and then we can put all the data together in the computer and create a virtual crime scene, which is a 3-D model of the crime scene.”

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The software even reconstructs bullet trajectories, represented by red and yellow bars.

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“We were able to have a much better look at the trajectories of the projectiles, than we were able to see it in a two-dimensional manner,” Ross said.

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Another new technology developed at the institute is a robot called Virtobot, which forensic scientists can use to perform virtual autopsies in great detail.

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Institute scientist Robert Breitbeck said the system provides a 3-D model of the human body, inside and out.

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“We can scan the skin with the pattern injury in color and true to scale so we can store it, and later we can combine it with 3-D data, which the police scan together with us," Breitbeck said. "And with this 3-D data, we have a basis [with which] we can do the 3-D reconstructions or visualizations of murder cases or traffic accidents.”

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Both systems are already being used in several countries around the world.

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重点单词   查看全部解释    
combine [kəm'bain]

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v. 结合,联合,使结合
n. 集团,联合企业

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scale [skeil]

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n. 鳞,刻度,衡量,数值范围
v. 依比例决

 
projectile [prə'dʒektil]

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n. 发射体,抛射物 adj. 发射的,投射的

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shell [ʃel]

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n. 壳,外壳
v. 去壳,脱落,拾贝壳

 
perform [pə'fɔ:m]

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v. 执行,运转,举行,表演

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institute ['institju:t]

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n. 学会,学院,协会
vt. 创立,开始,制

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pattern ['pætən]

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n. 图案,式样,典范,模式,型
v. 以图案

 
witness ['witnis]

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n. 目击者,证人
vt. 目击,见证,出席,

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reconstruct [.ri:kən'strʌkt]

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vt. 重建,修复,重现

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rift [rift]

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n. 裂口,隙缝,切口 v. 裂开,割开,渗入

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