• 6 months ago
Yungang Grottoes in China's Datong is a Unesco World Heritage site featuring over 50,000 stone Buddhist sculptures.

Find out how Chinese researchers are employing digital technologies to help with its protection.

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Transcript
00:00We use three ways to digitalize the cave, one is the three-dimensional laser scanning machine that we hold in our hands.
00:27The main task is to obtain the detailed three-dimensional model of the whole cave.
00:31The other is the three-dimensional laser scanning machine that is used in combat.
00:34The main task is to control the large area of the cave.
00:37The data that it scans out is the electron data.
00:39In the later stage, we can also generate this kind of three-dimensional model for it.
00:43The other is to take pictures.
00:45The main task is to obtain the textual information of the whole cave.
00:47Because the data from our laser scanning machine is colorless,
00:51so we take pictures to obtain its color information.
00:54The three kinds of data are integrated with each other.
00:56In the later stage, they are integrated together to form a colorful three-dimensional model.
01:00The difficulty is that this thing is a fine grain.
01:03In fact, it is the same as a paper brush.
01:05When it is scanned, it does not mean that it can be stepped on immediately.
01:08You may not be able to scan it with bare feet.
01:10It needs to be scanned and processed repeatedly.
01:15The strongest one I have scanned so far is the 19th cave.
01:19This cave is relatively large in volume.
01:21It also has two holes.
01:23It is equivalent to three caves.
01:25At that time, it took us about two and a half months to collect the official website.

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