Method for directly measuring area and volume using binocular stereo vision
US4924506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1987 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Nov 5, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for directly measuring the area of a topological surface with an arbitrary boundary shape lying in a fixed elevation different from a fixed surrounding surface elevation relies upon binocular stereo vision. Three stereo correlation measurements are made, one over a window entirely within the surface of interest, a second over a window outside the surface of interest and within the surrounding area, and a third over a window fully containing the surface of interest as well as some of the surrounding area. The correlation measured in the third case is the linear sum of the correlation value over each of the first two cases weighted by the proportion of the window that the two surfaces occupy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.