3D camera using flash with structured light

摘要

An imaging device capable of capturing depth information or surface profiles of objects is disclosed herein. The imaging device uses an enclosed flashing unit to project a sequence of structured light patterns onto an object and captures the light patterns reflected from the surfaces of the object by using an image sensor that is enclosed in the imaging device. The imaging device is capable of capturing an image of an object such that the captured image is comprised of one or more color components of a two-dimensional image of the object and a depth component that specifies the depth information of the object.

主权项

1. A method, comprising:
projecting a sequence of different structured light patterns onto an object using an array of addressable light modulating pixels of a spatial light modulator, wherein respective ones of the sequence are projected at time interval spacings; capturing a two-dimensional image of the object; and using an array of charge-coupled device pixels of an image sensor, capturing the light patterns reflected from the object as depth information for image pixels of the two-dimensional image, wherein capturing the reflected light patterns includes: generating at least one accumulated electrical charge proportional to intensity of light incident on at least one of the charge-coupled device pixels for light reflected from a given number of the light patterns over a time corresponding to a total of the time interval spacings between the given number of light patterns.