Recognition Target

What is recognition target?

Among the tracking functions of Letsee WebAR SDK, image, marker, and qrcode perform marker based tracking. Objects that can act as recognition markers in this way are called recognition targets, and are defined and used as entities.

Entity

An entity is an abstraction concept proposed by Letsee to incorporate real-world elements into an augmented reality web app. Entities are physical objects that exist in physical reality such as objects, places, and people, and are used to specify real world elements in Letsee WebAR SDK and designate them as targets for recognition. It has a spatial property consisting of shape, size, features, location and etc. All entities are web resources accessible via HTTPS. Therefore, Letsee WebAR SDK receives and tracks data that can be physically identified through the URI (Uniform Resource Identifier) declared in the ARWebApp code, and reflects it in the rendering of the web app. You can also declare entities yourself and add them to your own web app if needed.