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The accuracy of a time-of-flight 3D laser scanner depends on how precisely we can measure the time: 3.3 picoseconds (approx.) is the time taken for light to travel 1 millimetre. The laser range finder only detects the distance of one point in its direction of view.
A structured-light 3D scanner is a device used to capture the three-dimensional shape of an object by projecting light patterns—such as grids or stripes, onto its surface. [1] The deformation of these patterns is recorded by cameras and processed using specialized algorithms to generate a detailed 3D model .
The scanner was designed for the capture of medium to large objects. The device has a scan area of 214 x 148 mm at its closest range and 536 x 371 mm at its furthest, a 3D resolution of up to 0.5 mm and a 3D point accuracy of 0.1 mm. [18] Eva can operate at distances between 0.4 m and 1 m from the object, capturing up to 16 frames per second. [14]
DAVID Laserscanner is a software package for low-cost 3D laser scanning. It allows scanning and digitizing of three-dimensional objects using a camera (e.g. a web cam), a hand-held line laser (i.e. one that projects a line, not just a point), and two plain boards in the background. The software generates 3D data in real time and shows them on ...
The addition of 3D color printers enables accurate miniaturization of these objects, with applications across many industries and professions. For scanner apps, the scan quality is highly dependent on the quality of the phone camera and on the framing chosen by the user of the app. [68]
3D model of a human face. Three-dimensional face recognition (3D face recognition) is a modality of facial recognition methods in which the three-dimensional geometry of the human face is used. It has been shown that 3D face recognition methods can achieve significantly higher accuracy than their 2D counterparts, rivaling fingerprint recognition.
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