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Why 3D Point Cloud is the Ideal Base for Building Documentation

Why 3D Point Cloud is the Ideal Base for Building Documentation

The advancement of technology like laser scanning widens the accessibility of 3D measurement systems. Today, 3D point clouds are used across industries and utilized in a variety of applications.

Modern 3D measurement systems made the collection of highly accurate and precise 3D point clouds easier. Over the years, 3D laser scanning systems have improved and so is the quality of captured point clouds.

With the help of the 3D point cloud, a variety of applications have taken advantage of its benefits including the archaeology and surveying sector, reverse engineering, mobile robotics, building, and construction sectors to name a few.

What is Point Cloud?

Point clouds refer to datasets that represent space or an object. These are collated large number of measurements of single spatial measurements.

Point clouds are generated through 3D laser scanners and the use of the Light Detection Ranging (LiDAR) technique. Each point represents a single scan measurement and is then joined together using the “registration” and meshing process to come up with complete capture of a scene or an object.
Through the point cloud process and the use of computer code tools, the scanned scenes are furthermore patched to create an accurate 3D model of the actual object for visualisation, planning, designing, or customisation.

Oxford Measured Survey uses FARO laser scanning equipment to complete comprehensive 3D laser scanning services. Along with professionals and experts in the field, you are assured of getting a photorealistic 3D point cloud.

Faro 3D laser scanners can measure with a speed of up to 1 million points per second. This unique product of 3D laser scanning creates what is called a point cloud. Each of millions of points of the point cloud contains information about its position in space – X, Y, Z as well as additional information like the level of reflectivity of the measured objects or their colour.

Every spin of the scanner head creates a single unrelated point cloud. During every scanning, the project technician acquires on site many of single point clouds which can be linked together in the office during a process called REGISTRATION. Once it is finished, all scans are in the correct positions and in one coordinate system.

A point cloud can be exported to many formats (FLS, E57, LAS, PTS, PTX, RCP, RCS, etc.) and be used to produce accurate 2D drawings, 3D models, or animations.

A 3D point cloud is also a valuable product on its own. The use of online point cloud viewers like Webshare Cloud can be a powerful planning or space management tool without a need to produce additional deliverables.

How Is It Essential in Building Documentation?

Generally, data gathering for an existing building or state of a construction site is done manually. This traditional way oftentimes creates errors, delays, and misunderstandings between construction experts and clients due to inaccurate data.

Plus, multiple visits to the site is tedious and a waste of time. With these mishaps, projects are delayed and costs are extended.

3D point cloud has greatly helped these issues fixed. From initial data gathering to property management, these are managed easily.

  1. Point cloud modelling allows engineers and construction experts to analyse if the location suitable for the design. This also allows architects to make adjustments to the design as well as pre-construction requirements including the foundation of the building where it will be erected.
  2.  The point cloud technology makes it easy and convenient for designers, architects, and engineers to make renovations in the future. Point cloud modelling is used to create a 3D BIM or Building Information Model which represents the existing geometry of the building.
  3.  3D point clouds are also used to create editable 2D drawings which contain information like wall elevations, mounting layouts, utility and systems plans, all critical for construction and renovation.
  4.  3D models are also important when reconstructing damaged details of a historical building or other heritage sites. Even some parts are extremely damaged, these can be reconstructed through the use of additional references from the existing 3D model.
  5.  Point clouds can also be used for Virtual Reality (AR) and Augmented Reality (AR) because of their ability to capture 3D representations of real life.

If you are an architect, engineer, or AEC specialist, get in touch with Oxford Measured Survey and see how we can help you. Our experience as a 3D laser scanning company can give you an online quote for your scan-to-point-cloud needs.

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    Author: Sonia