Explore a Cave without Going Inside
Czech scientists have come up with a way to explore flooded cave systems without having to go into them. Their solution: create a three-dimensional (3D) map of the cave.
A company called Geo-CZ developed a new tool that uses 3-D technology to map historical and archaeological areas. The Cave Administration of the Czech Republic demonstrated it earlier this month.
Jiri Sindelar of Geo-CZ said, "The input data are not made by individual pictures, but videos. This makes the on-site mapping incredibly faster."
To produce the 3-D images, someone still needs to wear a wet suit, helmet and other equipment before going into the cave. That has to be done only once and only long enough to film it. This is helpful because most caves are underground and can be dark. In addition, caves can be seriously dangerous when they are flooded.
Last year, 12 Thai schoolboys and their football coach were trapped in a flooded cave for 18 days before being rescued.
Geo-CZ used its 3-D mapping system in a cave about 100 kilometers south of Prague, the Czech capital. The cave was discovered in 1863 and opened to the public five years later. In the 1980s, explorers found lower, larger parts of the cave system filled with water. The exploration is continuing.
Sindelar said the new system will make the exploration much easier and the findings more accurate.
Divers can also understand the shape of the cave better when observing it as a whole in the computer model.
Cave specialist Frantisek Krejca noted, "In the 3D imagery, we can really realize the connections...of the whole system. We can get much more information from it."
I'm Jonathan Evans.
1.computer model 计算机模型
In recent years, the rapid development fire computer model was the effective tool to understand the fire process.
2.wet suit 潜水衣
In wintertime he will don a wet suit and go right on surfing.
3.be filled with 充满
I was filled with astonishment at her strange action.
4.In addition 另外
In addition, he sometimes uses my things without asking me.
5.Czech scientists have come up with a way to explore flooded cave systems without having to go into them.
come up with 提出
The president was moved to come up with these suggestions after the hearings.
I don't think he can come up with any clever move.
6.Czech scientists have come up with a way to explore flooded cave systems without having to go into them.
go into 进入
Ted and I took it in turns to go into hospital and sit with Emma.
They advised her to go into hiding for a while.
捷克科学家提出一种方法，无需潜入就能探索洪水淹没的洞穴系统 。他们的方案是：创建洞穴的三维（3D）地图 。
一家名为Geo-CZ的公司开发了一种新途径，使用3D技术绘制历史和考古区域的地图 。本月早些时候，捷克共和国的洞穴管理局展示了这一点 。
Geo-CZ的Jiri Sindelar称：“输入数据不是由单独的图片，而是视频 。这使得现场测绘速度快得令人难以置信 。”
为了制作3D图像，潜水员在进入洞穴前仍然需要穿潜水衣、佩戴头盔和其他设备 。拍摄过程只需要进行一次，而且只需要拍摄足够长的时间 。该技术是有帮助的，因为大多数洞穴位于地下，并且光线黑暗 。此外，当洞穴被洪水淹没时可能会非常危险 。
Geo-CZ公司在捷克首都布拉格以南约100公里的一处洞穴中使用了3D测绘系统 。1863年，该洞穴被发现，五年后向公众开放 。在20世纪80年代，探险家们发现洞穴系统中较低的大片区域被水淹没 。探索行动仍在继续 。
洞穴专家Frantisek Krejca指出，“利用3D图像，我们可以真正地理解洞穴与整体系统的联系 。我们可以从中获得更多信息 。”