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  Indian J Med Microbiol
 

Figure 3: Classification of three-dimensional digitizing method. Three-dimensional scanners fall into broad contact and noncontact based categories. Contact three-dimensional scanners are sub-classified according to whether or not the scanning method is a destructive (i.e., knife-edge scanning microscopy, focused ion-beam scanning electron microscopy, etc.) or nondestructive process (i.e., coordinate measuring machine, articulate arms with encoders, etc.). Noncontact three-dimensional scanners are sub-classified by the type of electromagnetic radiation utilized. Within visible light-based noncontact scanning, methods can be further divided devices that emit or absorb radiation

Figure 3: Classification of three-dimensional digitizing method. Three-dimensional scanners fall into broad contact and noncontact based categories. Contact three-dimensional scanners are sub-classified according to whether or not the scanning method is a destructive (i.e., knife-edge scanning microscopy, focused ion-beam scanning electron microscopy, etc.) or nondestructive process (i.e., coordinate measuring machine, articulate arms with encoders, etc.). Noncontact three-dimensional scanners are sub-classified by the type of electromagnetic radiation utilized. Within visible light-based noncontact scanning, methods can be further divided devices that emit or absorb radiation