Method and apparatus for quantitative 3-D imaging
AssigneeCalifornia Institute of Technology
InventorsMorteza Gharib, Emilio Graff, Francisco Pereira
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Abstract
Described is a method and apparatus for obtaining additional information from an object and a method for surface imaging and three-dimensional imaging. Single lens, single aperture, single sensor system and stereo optic systems may be modified in order to successfully generate surface maps of objects or three-dimensional representations of target objects. A variety of the aspects of the present invention provide examples of the use of an addressable pattern in order to overcome mismatching common to standard defocusing techniques.
Claims10
A method for constructing a representation of a surface of a target object by using an addressable pattern, comprising acts of:
- acquiring a plurality of images of an addressable pattern from different viewpoints through an imaging lens and a mask having at least one set of off-axis apertures, each of the plurality of images comprising addressable pattern information and at least one point representing at least one aspect of a target object, wherein the at least one set of off-axis apertures filters light reflected from the surface of the target object into the plurality of images;
- processing the plurality of images to assign an address to each point in each of the plurality of images;
- developing an addressed list of points using the address of each point in each of the plurality of images;
- returning the addressed list of points to an imaging system processor for conversion into a three-dimensional measurement;
- and
- causing the imaging system processor to generate a representation of a surface of a target object based on the three-dimensional measurement.
Dependencies are inferred from the claim text.