--- title: "ARC eye glossary" slug: "arceye-glossary" tags: ["ARC eye"] updated: 2026-09-17T09:18:13Z published: 2026-09-17T09:18:13Z canonical: "guide.ncloud-docs.com/arceye-glossary" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # ARC eye glossary Available in Classic and VPC Some glossary is crucial in using ARC eye. The terms and their descriptions are as follows: ### Potree Viewer The large capacity point cloud or LIDAR data setting viewer developed at Vienna University of Technology ### Visual Localization (VL) Technology to estimate the current position only with indoor and outdoor images ### Visual Object Tracking (VOT) Technology to recognize the location of an object in a space with the video taken on a mobile device ### Simultaneous localization and mapping (SLAM) A method to write a map of the neighbor environment and estimate the locations in the written map at the same time ### Device A means to collect the space data ### Localization The process to sync the coordinate systems of each location into one common coordinate system ### ARC eye A NAVER Cloud Platform service that provides positioning API that enables building indoor and outdoor digital twin and is applicable to AR, robots, and smart buildings ### Tagging A task to remove the unnecessary area in a video taken with the ARC eye Scan app and set the object area to create the object Note For more information on terms, see [Glossary](https://www.ncloud.com/guideCenter/glossary) on the NAVER Cloud Platform portal.