Ratified extension defines formats, reference images, and static optimization. Understand target quality, scaling, and cross-runtime testing.
Direct answer
The ratified extension XR_EXT_spatial_image_tracking, present in OpenXR 1.1.63, defines a bank of reference images that the runtime can use to recognize and track 2D targets. Database creation is asynchronous, accepted formats must be enumerated and each reference includes data and physical dimensions. The extension also provides optimization for static images. The standard unifies the interface, but the quality depends on texture, lighting, size, angle, occlusion and device capacity; therefore, acceptance needs to occur on each supported runtime and environment.
Bank organizes the traceable set
Grouping references allows you to prepare targets before the session and associate each detection with business data in a controlled way.
Format must be negotiated
The application enumerates what the runtime accepts before creating the database. Converting silently may degrade important characteristics of the target.
Physical dimension influences the pose
Reporting incorrect size distorts estimated scale and distance. The published measurement must be verified in the final printed or displayed material.
Good image has sufficient visual signal
Distinct texture, contrast and lack of repetition favor recognition. Reflection, blur, clipping and occlusion need to go into the test matrix.
Nexus Reading
Maintain a versioned catalog of targets with file, size, usage, environment, and test evidence by device. The portable API does not eliminate physical QA.
FAQ
Is the extension ratified?
Yes. The official OpenXR 1.1.63 page reports ratified status.
Is the bank created synchronously?
No. The specification exposes asynchronous creation and completion by future.
Will the same target perform equally on every headset?
No. The interface is common, but sensors, runtime, lighting and environment change the detection quality.
Essential guides to delve deeper into the decision
This editorial analysis was produced by Nexus from the official sources below, consulted on September 28, 2026. The text is original and interprets practical implications for companies.
- Khronos — XR_EXT_spatial_image_tracking: ratified status, database, formats, reference images, dimensions and asynchronous creation.
- Khronos — XR_EXT_spatial_entity: common model of context, capabilities, components, snapshots and spatial tracking state.
Date reported by main source: OpenXR 1.1.63 consulted on September 28, 2026; ratified standard analysis.