喷码图案的检测方法、装置、电子设备和存储介质
By segmenting the inkjet pattern into sub-images and comparing feature vectors, the problem of difficulty in identifying inkjet patterns after wear or contamination is solved, achieving higher comparison accuracy and anti-counterfeiting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NETEASE (HANGZHOU) NETWORK CO LTD
- Filing Date
- 2023-04-11
- Publication Date
- 2026-07-17
AI Technical Summary
The inkjet-printed patterns are difficult to read and identify correctly after wear or contamination, and the accuracy of existing optical equipment comparison methods is poor.
The inkjet pattern is divided into multiple sub-images. The similarity is determined by comparing the feature vector of each sub-image with the corresponding feature vector in the database. The accuracy of pattern comparison is improved by using the feature point change information of each pair of sub-images.
When the inkjet pattern is partially damaged, the accuracy and efficiency of pattern similarity are improved by referring to the ink dot information of the undamaged characters, thereby enhancing the anti-counterfeiting and traceability capabilities of the inkjet pattern.
Smart Images
Figure CN116469090B_ABST