Patent · US Active

Single image photometric stereo for colored objects

US9396544B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

Adobe Systems Incorporated · US

Inventors

Fabian Langguth · Darmstadt, DE
Kalyan Sunkavalli · San Jose, US
Sunil Hadap · San Jose, US

Key dates

Filing date	Jan 8, 2014
Grant date	Jul 19, 2016
Priority date	—
Expiry date	Jul 8, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10024
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Techniques are disclosed for reconstructing the surface geometry of an object using a single image. A computing device is configured to reconstruct a surface for a colored object from a single image using surface integrability as an additional constraint. The image is captured under an illumination of three fixed colored lights that correspond to three color channels, such as red, green and blue (RGB). The RGB image can be separated into three grayscale images, with different lighting for each image, and the geometry can be reconstructed by computing the surface normals of these separate images. Depth can be estimated by integrating the surface normals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.