Image tampering forensics method and apparatus
US10600238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Mar 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2215/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image tampering forensics method includes labeling an observation clue of a to-be-detected image, constructing a three-dimensional morphable model of an object of a category to which the target object belongs, estimating a three-dimensional normal vector to the supporting plane according to the observation clue, estimating a three-dimensional attitude of the target object according to the observation clue and the three-dimensional morphable model to obtain a plane normal vector to a plane where a side of target object in contact with the supporting plane is located, computing a parallelism between the target object and the supporting plane, and/or among a plurality of target objects, and judging whether the to-be-detected image is a tampered image or not according to the parallelism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.