Controlling light arrays to determine properties of an object

摘要

Methods and systems for controlling light arrays to determine properties of an object are described. An example method includes causing illumination of a surface of an object from multiple illumination positions using a programmable array of lights, and receiving images from an image-capture device while the surface of the object is illuminated. For example, the programmable array of lights may be modulated to cause illumination of a portion of the surface of the object from first and second illumination positions, and a first and second image of the surface of the object captured during illumination from the first and second illumination positions respectively may be received. Subsequently, a processor may determine material information for the object based on an amount of specular reflectivity for the surface of the object and reference to a database of known amounts of specular reflectivity for a plurality of materials.

主权项

1. A method comprising:
causing illumination of a first portion of a surface of an object from a first illumination position using a programmable array of lights; receiving from at least one camera a first image of the surface of the object captured during illumination of the first portion of the surface of the object; modulating the programmable array of lights to cause illumination of a second portion of the surface of the object from a second illumination position; receiving from the at least one camera a second image of the surface of the object captured during illumination of the second portion of the surface of the object; and determining, by a processor, material information for the surface of the object based on an amount of specular reflectivity for the surface of the object, with reference to one or more of the first image and the second image, and reference to a database of known amounts of specular reflectivity for a plurality of types of materials.