1. An intra-oral digitizer, comprising: a light source configured to generate a beam of structured light having constituent components; a reference arm configured to generate a reference beam of light based on the beam of structured light; a projector configured to project the beam of structured light toward an object and to detect a reflection of at least a portion of the beam from a at least a surface of the object, the beam being projected toward the object as a dot that traverses a pattern across the surface of the object; a coupler configured to combine the reference beam and the reflection to generate a superimposed interference light pattern; a sensor configured to generate a signal that represents the superimposed interference light pattern; and a processor configured to generate a dataset representative of the surface of the object.