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Ever wondered how film makers produce such amazing animation, or how historical artefacts can be viewed online in 3D? These are a few examples of the wide ranging applications for 3D laser scanning. The technology is used across numerous industries including the entertainment industry, industrial design, engineering, and prosthetics to name but a few. Land surveyors use 3D laser scanning for land and property surveys, and whilst it doesn’t replace the more traditional surveying methods, its benefits in certain circumstances are profound. A 3D laser scanner is a device that analyses a real object or the environment. It takes the data and creates an incredibly detailed 3D model, called a point cloud. This data can then be manipulated via various computer programmes to provide the required end product. A 3D laser scanner is often compared to a camera, in that it collects information within its field of view. Unlike a camera, the device records distance information, and builds a 3D model based on that information. For example, someone working on a video game might create a real-life model of a character for the game. They then use the device to record data related to the dimensions of the model. This information can then be manipulated via a computer programme to create an animated character for the game. 3D laser scanning provides extremely detailed data, relatively quickly, which has a dramatic effect on project timeframes. The data can be captured in one go, and with virtually no impact on the item or area being scanned. It is for these reasons that 3D laser scanning is being used extensively by surveyors for land, property, and engineering surveys. Traditional surveying methods such as measured building surveys, topographical surveys and GPS surveys still have their place but in certain situations 3D laser scanning is ideal. An example of this would be historical or very sensitive sites, where the property is either too dangerous or too fragile for traditional surveying methods. Terrain Surveys, a survey company in Hertfordshire, use 3D laser scanning extensively to great success. For example, at Fort Gilkicker, a Victorian fort located on the Hampshire coast. The fort has not been used since the 1950’s and has since been empty with some use as a storage facility. Terrain Surveys were commissioned to provide a measured survey to include; floor plans, elevations, a series of sections and a topographical survey. The resulting point cloud data gave a much clearer picture of the building’s make up, which could not be captured with traditional survey techniques. The advantage of using laser scanning means that they had everything captured and additional information is on hand without the need for costly re-visits. For further examples of their work or to discuss the benefits of laser scanning for your project, please visit www.terrainsurveys.co.uk/laser-scanning. We hope you find our top tips helpful and that this has demonstrated the importance of 3D Laser Scanning and how this can save you time and money. For more information and friendly advice, feel free to call Terrain Surveys on 01438 841300 or visit www.terrainsurveys.co.uk
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