Patent ID: 11886492
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The method according to claim 5, further comprising:
prior to the determining a key point feature similarity between the any image and the image to be matched, determining a reverse index table according to the key point feature distribution information of each of at least one image in the image library, and the reverse index table indicating a mapping relationship from each of the plurality of feature categories to the at least one image;
wherein the determining a first number of key point features contained in the any image and the image to be matched and belonging to same feature category comprises:
setting an initial value of the first number to 0;
for each key point feature contained in the image to be matched, searching an image that has a mapping relationship with a feature category to which the key point feature belongs in the reverse index table, and when the image having a mapping relationship comprising the any image, adding 1 to the value of the first number; and
in response to traverse the key point features contained in the image to be matched, determining the value of the first number.