Learn how to set an image anchor to ground your AR content on a printed image with more control over orientation and position.
An image anchor is a 2D image specified by an author that allows other 2D or 3D content to be anchored on it. It acts as an origin for the 3D content positioned around it, allowing you to fix your content on top of printed images, such as a cereal box, a movie poster, a floor plan and so on.
Image anchors can be used to:
You can set a new image anchor or update the real-world dimensions at any time from the Anchor Settings. You can also switch back to a surface anchor.
Image anchors are recognized and tracked using computer vision technology. There are two components to working with image anchors - recognition and tracking.
Recognition is how an AR system can recognize whether the specified image anchor is on screen. The recognition process needs to be tolerant of different orientations of the image, lighting conditions, camera noise, and other factors.
Recognition is done by performing a pre-process on the digital image to find high contrast edges, corners and other features. These pre-processed features can then be searched for in each processed camera frame to find a match. The AR system finds where in the camera frame the marker is and what 3D orientation it has.
Tracking builds upon recognition to interpolate the image anchor position between frames. This allows the anchored content to appear to stick to the printed image anchor when the image anchor or the camera moves.
We've got you covered on how to set an image anchor in Adobe Aero. Next, try adding interactivity to digital assets.