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Table 1 Comparison between the attributes of several position obtaining techniques

From: Determining device position through minimal user input

  Obstruction tolerant Quick Accurate Inexpensive Not encumbering
Technology
 RFID [10] \(\checkmark\) \(\checkmark\)    
 Infra-red [12]   \(\checkmark\) \(\checkmark\)   
 Visible light [13]   \(\checkmark\) \(\checkmark\)   \(\checkmark\)
 Fiducials [14]   \(\checkmark\) \(\checkmark\)   \(\checkmark\)
User input
 Direct measurement \(\checkmark\)   \(\checkmark\) \(\checkmark\) \(\checkmark\)