Church of Nikola in Zastenje, 16th century.The Church of St. Nicholas in Zastenie, built from limestone in 1542, is an interesting monument of the Pskov architectural style. The church is located on a small island, washed by the river Velikaya on a both sides. In ancient times there was the fortress, the ruins of which can be found there. The church has a feature, very unusual for orthodox architecture – the altar is placed not to the East but to the North. Presumably northern direction is coincided to the city of Pskov, the founder and patron of his suburban city of Ostrov [1].

In 2012 the restoration of the church was started that required an accurate architectural measurement.

3D laser scanning of church interiorsAn architectural restoration workshop chose 3D laser scanning method to solve this problem, as scanning is the quickest and the most accurate method of creation architectural measurements. The work was intrusted to the Trimetari Consulting LLC well proven in works by laser scanning.

The church belongs to the Russian Orthodox Church,

In addition to the limited funding for the design work due to the object’s belonging to the Russian Orthodox Church, all work, including interior measurements, had to be carried out without any interference with the functioning of the church, without disturbing the parishioners and without offending the religious feelings of believers by the presence of unauthorised people and equipment in the altar part of the church. A carefully considered scheme for the arrangement of binding stamps made it possible to minimise the number of 3D scanner parking places in the interior of the church without prejudice to the measurements and to maximise the number of 3D scanners in the interior of the church.

Orthoimage based on laser scanning data - the basis for the measurement drawingThe facades were surveyed using the telescopic mast of the mobile laboratory ‘MobiScan’, which allowed simultaneous scanning of fragments of the facades and roof of the temple at each point of standing. The total time spent on architectural measurements of the monument by laser scanning method was two days. In order to minimise costs for the design organisation, the measurement materials were transferred to the customer in the form of orthoimages according to the specified parameters. This form of interaction made it possible to shorten the cameral stage (it took several days) and significantly reduce the total cost of the laser scanning works. Subsequently, the customer was able to draw the measurement drawings based on the orthoimages provided.

Cross-section of a point cloud with a horizontal plane - the basis for creating a room plan

Trimetari expresses its gratitude to the rector of the Church of St Nicholas the Wonderworker, Father George, for his full understanding and assistance during the works.


[1] Vladimir Orlov Temples of the Pskov Land // Velikie Luki, 2009