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Computer Vision‐based AR
Feature The security features of a 10‐dollar‐note
Anchor A US 10 Dollar‐note along with
the location of the security features on the note.
VisualAsset Some buttons that can be
pressed to get more information on a particular
security feature Result
As soon as the 10 Dollar note is detected in the scene, the
VisualAssets are projected onto the note in the correct
positions.
6.1.2 Declarative and Scripting Specification
ARML 2.0 comes with a declarative specification, serialized in XML, describing the objects in the AR scene section 7, as well as a scripting specification allowing dynamically modifying the scene and
reacting on user‐triggered events section 8. The scripting specification uses ECMAScript for the scripting parts and a JSON serialization of the objects for accessing the objects properties.
The scripting specification declares hooks to the descriptive spec, so both specs, while existing separately from another, work together for a dynamic experience. An implementation can chose to
only support the declarative spec for instance in case scripting parts cannot be implemented on the platform the implementation is running on.
The scripting specification contains sections, which are intended for advanced users only. These sections are clearly marked as Advanced ARML in the title and are intended for those already familiar
with the basic concepts of ARML.
6.1.3 Document Structure
An ARML document is grouped into three parts: The declarative part AR Elements, the styling part and the scripting part.
The ARElements element contains a list of ARElement objects, as specified in the ARML specification below.
The optional style element contains styles typically CSS used for styling the virtual objects in the scene.
The optional script part contains scripting code typically ECMAScript or JavaScript.
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The following section will describe the ARElements section.
Requirement
http:www.opengis.netspecarml2.0reqcoreparse_encoding An implementation shall be able to parse valid ARML 2.0 XML encodings, as defined in section 7.
6.1.4 ARML 2.0 Object Model Diagram
ARML 2.0 is built on top of a generic object model to allow future serializations in different languages, as well as good extensibility for future needs.
The diagram below shows the generic object model in ARML 2.0.
6.1.5 Units
