Method and apparatus for absolute-coordinate three-dimensional surface imaging
US7929751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2006 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Aug 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/521
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and associated apparatus for capturing an image of a 3D object (100) which encodes the surface geometry of at least a portion of the object, comprising: 1. projecting (304) a plurality of fringe patterns (312A, 314A) onto the object; 2. capturing (306) phase alterations in reflections of the fringe patterns (312B, 314B) from the object; 3. projecting a uniform image (310A) onto the object; 4. capturing a reflection of the uniform image (310B) from the object; and 5. combining (310) captured phase alterations and captured uniform image reflection on a pixel-by-pixel basis, thereby forming a holoimage representation of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.