Three-Dimensional Shape Capture Using Non-Collinear Display Illumination

摘要

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for three-dimensional shape capture. In one aspect, a method includes displaying a first, a second and a third illumination patterns on a display screen, and capturing a first, a second and a third image of an object while the first, the second and the third illumination patterns are respectively displayed. The method further includes determining the three-dimensional shape of the object based on the captured images.

主权项

1. A system, comprising:
a camera configured for capturing images, the camera including a lens; a display screen capable of illuminating a plurality of pixels within the display screen; a processor operatively communicating with the camera and the display screen to control the camera and the display screen, the processor being configured to perform operations comprising: receive an input indicative of an initiation of a photometric stereo capture process, and in response:
cause the display screen to display a first illumination pattern, wherein the first illumination pattern comprises one or more illuminated portions of the display screen;cause the camera to capture a first image of the particular object illuminated by the display screen displaying the first illumination pattern;cause the display screen to display a second illumination pattern, wherein the second illumination pattern comprises one or more illuminated portions of the display screen;cause the camera to capture a second image of the particular object illuminated by the display screen displaying the second illumination pattern;cause the display screen to display a third illumination pattern, wherein the third illumination pattern comprises one or more illuminated portions of the display screen, wherein the first, second and third illumination patterns are not collinear and wherein a centroid of each illumination pattern is substantially separated from each other centroid of other illuminated patterns;cause the camera to capture a third image of the particular object illuminated by the display screen displaying the third illumination pattern; anddetermining a three-dimensional shape of the particular object based, at least in part, on the first, second and third images.