Device and method for detecting cigarette fly ash by gray-scale difference based on machine vision (MV)
US11670007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2021 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Jan 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30128
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and a method for detecting cigarette fly ash by a gray-scale difference based on machine vision (MV) are provided. A manipulator holds a cigarette as a detection sample to simulate a human smoking action, and multiple groups of cameras track a simulated smoking process of the detection sample synchronously in real time. It is determined whether fly ash appears based on a gray-scale difference of burning ash columns, produced without being subjected to flicking, in acquired images. A fly ash area of the burning ash columns of the cigarette is calculated by an area with the gray-scale difference of the burning ash columns of the cigarette in two sequential images of the burning ash columns of the cigarette, and a fly ash amount is further determined. The detection of the amount of fine fly ash is converted into the detection of the gray-scale difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.