Digitizer using plural capture methods to image features of 3-D objects
View Patent ↗A method and apparatus to digitize three-dimensional objects. A projection assembly is retained in fixed relation to an imaging assembly. The projection assembly projects a fixed gradient light pattern into a focal zone of the imaging assembly. The imaging assembly integrates the illumination over time such that the fixed gradient reveals the features of the three dimensional object.
1. A method comprising:
capturing a first two-dimensional image of an object;
causing a relative motion between the object and a field of view of a capturing device to expose a different aspect of the object to the capturing device;
capturing a second two-dimensional image of the object;
deriving a first three-dimensional digital representation of the object from the first and second two-dimensional images; and
creating a second three-dimensional digital representation by an alternative method.
2. The method of claim 1 further comprising:
automatically combining elements of the first three-dimensional digital representation with elements of the second three-dimensional digital representation to improve quality.
3. A method comprising:
capturing a first three-dimensional digital representation of a portion of an object using a first capture method;
capturing a second three-dimensional digital representation of a portion of the object using a second capture method; and
automatically combining elements from the first and second three-dimensional digital representations to improve quality.
4. The method of claim 3 wherein at least the first capture method uses active ranging and at least the second capture method uses passive imaging.
5. The method of claim 3 wherein the capturing of the first three dimensional digital representation and the second three dimensional digital representation is performed using a same image sensing array (ISA).
6. The method of claim 3 wherein one of the capture methods is stereoscopy.