Method and apparatus for measuring dimensions, and computer-readable storage medium
US11935260B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2023 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Mar 22, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This application provides a method for measuring dimensions to reduce measurement time and improve production efficiency, including: obtaining a first image and a second image of a to-be-measured workpiece, where the first image and the second image are images captured by a first camera and a second camera at different positions respectively; extracting a first corner set of the to-be-measured workpiece from the first image and a second corner set of the to-be-measured workpiece from the second image separately; rectifying position coordinates of the first corner set and position coordinates of the second corner set to obtain a position coordinate value of the first corner set and a position coordinate value of the second corner set in a same coordinate system; and obtaining dimensions of the to-be-measured workpiece based on the position coordinate value of the first corner set and the position coordinate value of the second corner set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.