Image processing apparatus and method of processing height data to obtain image data using gradient data calculated for a plurality of different points of a surface and adjusted in accordance with a selected angle of illumination
US6031928A · kind A · utility
61Cited by
24References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Feb 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/05
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for the processing of height information indicative of the roughness or texture of a surface which may be used to produce an improved two dimensional recording of the surface. The apparatus or method has particular applicability in the field on metrological instruments. In processing the surface information, the apparatus or method takes account not only of the basic height information but also of gradient information. Such gradient information is furthermore adjusted dependent upon a desired angle of illumination which may be selected by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.