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Published : Oct 27, 2021
NOT ON THE CURRENT EDITION
This blip is not on the current edition of the Radar. If it was on one of the last few editions, it is likely that it is still relevant. If the blip is older, it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the Radar. Understand more
Oct 2021
Assess ?

许多增强现实(AR)应用需要获得用户设备的位置和方向,为此,它们一般会使用基于 GPS 的方案,但 空间定位点 这一新技术也值得考虑。这一技术利用设备摄像头记录视觉图像,通过图像的特征点以及它们在 3D 空间中的相对位置来识别其在真实世界中的位置,然后在 AR 空间中创建相应的定位点。虽然空间定位点无法取代所有基于 GPS 和标记的定位点,但它们确实比大多数基于 GPS 的方案精度更高,也比基于标记的定位点更能适应不同的视角。目前,我们只使用过 Google 的 Android 云定位点 服务,它确实很有效。此外,Google 还一反常态地推出了 iOS 云定位点 服务,而微软的 Azure 空间定位点 服务甚至支持更多的平台。

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