公开(公告)号：US20250157193A1

公开(公告)日：2025-05-15

申请号：US18833352

申请日：2023-01-09

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Jiawen LI ,  Yuanfan GUO

IPC: G06V10/77 ,  G06V10/74 ,  G06V10/762 ,  G06V10/774

Abstract: The disclosure relates to a method for generating a feature extraction model, and a method and apparatus for image feature extraction, the method comprising: obtaining a plurality of candidate images; determining a clustering tree corresponding to the plurality of candidate images based on a feature extraction model and the plurality of candidate images, wherein the clustering tree comprises clusters at a plurality of layers; generating a target sample pair based on the plurality of candidate images and the clustering tree, wherein the target sample pair comprises an image sample pair and a feature sample pair, the image sample pair is formed based on two different candidate images, and the feature sample pair is formed based on features of the candidate image and features of a cluster center of the clustering; and training the feature extraction model based on the target sample pair.