Method for testing burning performance of dark-colored cigarette using dark-colored cigarette paper
US11974595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2022 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Sep 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30128
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for testing burning performance of a dark-colored cigarette using a dark-colored cigarette paper is provided. The dark-colored cigarette paper has a grayscale less than 255. The method includes: simulating, by a robotic arm, a cigarette smoking process and environment; acquiring, by a full-vision camera system, an image of a burn line and ash column region of the dark-colored cigarette; and analyzing a burning performance indicator of the dark-colored cigarette according to coordinate information of the burn line and ash column region. The method is based on a surface reflection characteristic of the dark-colored cigarette paper and a principle of optical reflection to light and highlight an edge of the dark-colored cigarette sample by a light source at a certain angle from a side. In this way, the method forms a chromatic aberration to localize the dark-colored cigarette sample, thereby testing the burning performance of the dark-colored cigarette sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.