Plain definitions for every site term.

From capture to Site history.

Record

An accepted spatial reconstruction that an operator can inspect for a Visit.

TRACE opens each accepted record in the browser.

Visit

A dated trip to a Site, created by a person with the date they choose.

Uploads and their results attach to that Visit. Upload time and camera time do not silently replace its date.

Site frame

The common coordinate frame used to relate a Site’s Visits.

Each visit is lined up with the site’s reference once a person accepts the match.

Camera path

The camera’s estimated positions and orientations at sampled times in a clip.

TRACE derives paths from placed keyframes. Unobserved intervals are not independently solved positions.

4D playback

A Visit’s footage played in sync with its camera path inside the 3D Record.

Follow the camera, look around freely, or view the visit from above.

Held-out view

An image reserved from training to evaluate the resulting reconstruction.

TRACE checks evaluation splits and per-view scores. The warehouse example is pose-assisted; withheld training images do not imply independent camera estimation.

SOG

A compressed Gaussian scene format used to deliver a Record to the browser.

A checked SOG rendition serves the Record; the accepted PLY retains its identity. Export fidelity and reconstruction quality are separate measurements.

Gaussian splatting

A 3D representation made of many spatial Gaussian elements whose appearance is blended to render a view.

TRACE trains its records from the placed images of each visit.