Transforming reality into photorealistic Virtual Reality with laser scanning

Author:Reka Vasszi

虽然虚拟现实（VR）通常与视频游戏相关联，但它通过打开各种各样的新可能性来销售产品，体验地点或培训员工来塑造许多行业。bob综合app下载VR具有多个应用程序，基于将用户沉浸在安全的虚拟世界中的能力，并通过涉及大多数感官来充分体验不同的环境。

虚拟现实有限公司中的现实。(RiVR), a developer of VR experiences in England, is enhancing the way humans learn by offering immersive training and educational programmes for all industries. VR-based training programmes can immerse users in realistic situations, such as crime or fire scenes, that cannot be reproduced easily in real life.

RIVR提供的沉浸式体验非常适合在公共安全领域的应用，在该公共安全领域，VR为学生提供了一种从培训室的安全中获得危险或威胁生命的环境的宝贵经验的方法。英国的消防与救援服务部和科学技术实验室都要求RIVR基于现实世界中的事件，为消防和犯罪现场的场景进行过度现实的娱乐活动，以为受训者制定虚拟培训计划。培训的目标是为学生在压力很大的情况下做好适当的行为和行动做好准备。A Virtual Reality Monitor (VRM) developed by RiVR allows the trainers to observe how the candidates interact with the scene and gives a comprehensive overview of the training session.

Using theLeica RTC360激光扫描仪，结合摄影测量法，RIVR能够发展类似生活的虚拟环境where the未来的消防和警察可以训练。

Virtual firefighters and detectives

Pioneering with its first product, RiVR Investigate, the company is complementing real-world training of firefighters, police officers and crime scene investigators with an immersive photorealistic VR experience. RiVR Investigate allows the new recruits to gain exposure in a controlled and consistent way. Exposing trainees to a real fire and dangerous situations for the first time might result in stress and fear for the job. VR technology also allows police officers and investigators to undertake a range of simulations andrecreate any murder scene that would not be possible otherwise。

在RIVR调查培训解决方案学员可以访问六个不同的火灾调查方案，两次危险物质事件和两个犯罪现场。RIVR软件还记录了受训者进行审查的所有操作。开发人员团队正在寻求与更多的消防服务和警察部队合作，以增加年度VR场景图书馆。

But，这些现实生活中的情况如何转化为虚拟模拟？RIVR与Leica Geosystems合作，并使用Leica RTC360生产high-resolution topology of large scenes。Thehighly-portable and automatedRTC360 empowered the team todocument and capture the crime scenesand the burnt-out buildings fast and to the finest detail.

“We use the RTC360 when we scan large environments that don't lend themselves to photogrammetry. Then onto the scans, we overlay high-resolution imagery to produce millimetre accurate photo-realistic environments of any size. We also find the RTC360 very useful in environments that are very hard to do a photogrammetry scan, such as a mainly white lab, which doesn’t have much randomness [points of reference] to it,”RIVR创意总监Alex Harvey解释说。

捕捉现实以增强学习

Experiencing new challenging environments for the first time, such as a murder scene or a fire, provides valuable context and位置意识of situations for the candidates, otherwise difficult to replicate without significant costs. With the ability tomirror with millimetre precision这real world through laser scanning, professionals can创造引人入胜的现实经验for multiple applications, including photorealistic VR training for public safety.

In a BBC Click episode featuring VR applications, Paul Speight, watch manager at Leicestershire Fire and Rescue Service, states students trained in a VR environment are more engaged. According to a recent report by the National Training Laboratory in the United States, retention rate of learning using VR scored75 per cent。相反，其他讲座式方法为5％。

VR created with laser scanning and photogrammetry can place users in any number of different places, situations or environments, and can be deployed to teach awareness, build skills, and provide valuable experience to those who risk their lives to help others.

本文首先出现在2019年5月的一期xyHt magazine。