Detection target positioning device, detection target positioning method, and sight tracking device
US11521327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a detection target positioning method and device. The method comprises: acquiring an original image and pre-processing the original image to obtain a gradation of each pixel in a target gradation image corresponding to a target region including a detection target; calculating first gradation sets corresponding to rows of pixels of the target gradation image and second gradation sets corresponding to columns of pixels of the target gradation image; and determining rows of two ends of the detection target in a column direction according to the first gradation sets, determining columns of two ends of the detection target in a row direction according to the second gradation sets, and determining a center of the detection target according to the row of two ends of the detection target in the column direction and the columns of two ends of the detection target in the row direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.