纽约哥伦比亚大学的研究人员开发了一种创新的方法，将物理标签嵌入到3D印刷物体中。
该方法创造的“气体规范”，使用空气口袋在3D打印零件中包含信息。
物理标签
The research paper refers to the presence of digital tags such as barcodes and QR codes and explains how there is an opportunity to incorporate these into objects using 3D printing.
The AirCode technique is imperceptible to the human eye and requires a computer imaging method to retrieve the data.
This approach, the researchers believe, has particular application in embedding metadata, robotic grasping and watermarking.
The paper explains the AirCode could hold also additional information about the object,
“For example, after designing an artistic statue, the artist can embed a link to a webpage about the background of this statue or the artist’s personal website or copyright claim in the statue before fabricating it.”
Such a technique could be useful in 3D printing scans of sculpture such as those captured by theScan the World community. The tags could provide more details about object and where it was scanned.
AirCode
After 3D printing the object with embedded air pockets, the researchers use a “computational imaging method” to later scan the tags.
Notable benefits of the AirCode technique are that it requires no post-processing and could be incorporated as part of an existing 3D printing workflow.
The method could also have significant application in IP protection. Users could 3D print objects with the air codes in order to prove their validity.
以类似的方式，另一个纽约研究项目最近旨在提高3D印刷零件的安全水平。他们这样做了嵌入故意的错误如果未使用正确的设置，则进入3D打印对象。
The article, titled ‘AirCode: Unobtrusive Physical Tags for Digital Fabrication’, has been published online and is在这里可用.
对于即将举行的3D打印活动，visit our the 3D printing events page.
For all the latest 3D printing news,订阅最广泛的新闻通讯在3D印刷行业中follow us on twitter和像我们在Facebook上.
特色图像显示了纸上的图9，该图9演示了嵌入式空气口袋如何类似于QR码。
