Live demo · measurable imagery
Measure a street from a photograph
This is a real panorama from our Vilnius capture, paired with a depth map rendered from the LiDAR point cloud recorded at the same instant. Click any two points on a surface and the viewer returns the true distance between them in metres, plus each point's national-grid coordinate, without your browser ever downloading the 24 GB point cloud behind it.
Depth maps are 2048 × 1024, encoding slant range in centimetres out to 60 m. Validation figures are measured against the source point cloud for this session.
Why this matters for a municipality
No site visit
Sign clearance, pavement width, the gap between a tree and a facade: all answerable from the desk, months after the drive, without sending anyone back to the street.
One frame of reference
The imagery, the point cloud, the asset inventory and the ArcGIS deliverables all sit in LKS-94 with LAS07 heights. A measurement here is the same number as a measurement in your GIS.
Browser-weight
The depth map is roughly 660 kB per position. The full classified cloud is 24 GB. Staff get measurement in a browser tab; the heavy data stays where it belongs.
Honest about gaps
Where the laser never reached, the twin says so. It reads a supported cluster of depth samples rather than a single pixel, so thin poles and porous canopy do not silently return the building behind them.
Frequently asked questions
How can a photograph be measurable?
Each panorama is paired with a depth map rendered from the classified LiDAR point cloud captured at the same instant, so every pixel carries a distance as well as a colour. A click becomes a ray, the ray reads its depth, and the result is a real coordinate in LKS-94, and the browser measures without ever downloading the multi-gigabyte cloud.
How accurate are measurements taken in the twin?
Validated against the source point cloud, the depth maps show a median bias of 0.00 cm, with 78 % of probes within 10 cm and 86 % within 25 cm, across roughly 87 % horizon coverage. Imagery and LiDAR share one reference frame with a 14 mm Kabsch alignment residual.
Why do some points report no measurement?
Sky has no laser return, and surfaces beyond the 60 m LiDAR radius or hidden behind an occluder were never scanned. The viewer refuses to guess in those places and says so, rather than reporting a distance it cannot support.
What coordinate system are the results in?
Horizontal coordinates are LKS-94 (EPSG:3346), the Lithuanian national grid; heights are LAS07 orthometric via EGM2008. That is the same frame as the point clouds, the asset inventory and the ArcGIS deliverables, so what you measure here matches what you receive.
Digital twins for Lithuanian municipalities
A measurable twin answers the questions that otherwise send someone back to the street. Sign and cable clearance, pavement and carriageway widths, the gap between a tree crown and a facade, the height of a kerb: all of it is available from a desk, months after the drive, to anyone with a browser and no GIS training.
Because AKYS works in LKS-94 (EPSG:3346) with LAS07 orthometric heights, a measurement taken in the twin is the same number your own GIS reports. That is the national grid Lithuanian municipalities already hold their data in, so the twin layers onto existing records rather than sitting beside them in a private coordinate system.
The twin is built from a single pass of mobile mapping in Lithuania, combining mobile LiDAR scanning for geometry with 11K 360° photography for appearance. Read more about how we build and host them on the digital twins page.