3D Laser Scanning Services What is a Structured-Light 3D Scanner


From the video game industry to the construction industry, 3d laser scanning services are used to record the spatial data of objects, structures and environments and reconstruct it into polygon mesh models, surface models and solid CAD models that can be used to produce a variety of products, preserve or re-engineer certain aspects of buildings or monuments and judge the best excavation or building practices in relation to a specific terrain. But to whatever end laser scanning is used, it all begins with using the right 3d laser scanning equipment. In general, using the right type of laser scanner depends first on the size of the subject matter. For example, surveying buildings or monuments requires laser surveying equipment that can gather data from a significant distance, such as a non-contact time-of-flight laser scanner, while smaller objects, especially those that have significant detail and whose surfaces make them a poor candidate for contact scanners, require a non-contact scanner that is capable of gathering detail at close range, such as triangulation laser  scanner or a structured-light laser scanner. In this article, we present an overview of the latter. harmonic scanner 


Like triangulation laser scanners, structured light scanners use a camera to capture the spatial data of their subject. But instead of projecting a laser, they project light patterns that often take the form of stripes. By projecting narrow bands of light onto three-dimensional objects, structured-light scanners produce a line of illumination that appears distorted to the naked eye but is used to gather data for the precise geometric reconstruction of the subject. The applications for structured-light surveying are numerous and include the following: body shape measurements, forensic inspections, measurement of road surface quality, measurement of wrinkles in cloth and other materials, measurement of skin surface for cosmetics, gathering data on objects of cultural heritage, measurement for determining the radius of cutting tool blades, measurement for the classification of grinding surfaces, measurement of combustion chamber volume in machines, precision measurement for production control and reverse engineering.

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