CÉH+ 3D laser scanning

The laser scanning team at CÉH has successfully completed multiple 3D laser scanning survey and modelling projects. Among others, the team carried out the 3D laser scanning survey and modelling of the Hungarian State Opera House.

3D laser scanning – a survey technology

3D laser scanners have been the fastest developing survey device of all survey technologies in the past decade. Their versatility has been proven in multiple engineering and other areas from construction industry and engineering through monument conservation to archaeology. 3D laser scanning is the state-of-the-art method of survey methodology delivering an excellent solution to the technical requirements of today’s modern digital world.

3D laser scanning – BIM basic model construction

3D scanning ensures a more detailed model and higher accuracy than other survey methods. These features make it capable of meeting numerous special challenges. As survey, modelling and data requirements grow, laser scanned products develop in parallel to create a firm basis for BIM modelling and design tasks. A single survey phase delivers accurate information on the spatial data of the present discipline, while there is an opportunity to collect various descriptive data required to build a BIM model.

Results of 3D scanning surveys

The survey results in a point cloud made up of a swarm of points giving the visual impression of reality. The complete point cloud can be used to determine dimensions with millimetre accuracy from any point in space. The outputs of the survey can be various work phases which would need disproportionately huge resources with conventional survey methods.

Complementing the survey with digital images produces an almost real presentation of the surveyed objects, because the photos show them with their genuine colours.

The coloured point cloud is not only spectacular, but greatly helps further processing, because interpreting the survey results is no problem any more.

Laser scanning can be used in the following phases and purposes:

  • prior to design to accurately register the baseline state
  • change control of the BIM model during construction
  • to register the completed state, or even operation tasks based on the BIM model