公开(公告)号：US20210103759A1

公开(公告)日：2021-04-08

申请号：US17126908

申请日：2020-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Chai ,  Jun Wang ,  Jingwei Zhou ,  Jiong Deng

IPC: G06K9/46 ,  G06K9/62 ,  G06F16/51 ,  H04L29/08 ,  H04W64/00

Abstract: A database construction method includes determining a target image set that meets a preset image coincidence degree requirement, obtaining a scenario key point information set based on the target image set and natural condition information corresponding to each image, determining, in the scenario key point information set, first scenario key point information corresponding to a scenario key point whose life value on a single mobile terminal is greater than a first preset life value threshold, determining, in the first scenario key point information, second scenario key point information corresponding to a scenario key point whose life value on a plurality of mobile terminals is greater than a second preset life value threshold, and when the second scenario key point information does not match preset scenario key point information in a database, constructing the database based on the second scenario key point information.

公开(公告)号：US11644339B2

公开(公告)日：2023-05-09

申请号：US17126908

申请日：2020-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Chai ,  Jun Wang ,  Jingwei Zhou ,  Jiong Deng

IPC: G06V10/46 ,  G01C21/00 ,  G06F16/51 ,  H04W64/00 ,  H04L67/52 ,  G06F18/22 ,  G06F18/214 ,  G06V10/75 ,  G06V10/74 ,  G06V10/774 ,  G06V20/56

CPC classification number: G01C21/3859 ,  G06F16/51 ,  G06F18/214 ,  G06F18/22 ,  G06V10/462 ,  G06V10/757 ,  G06V10/761 ,  G06V10/774 ,  G06V20/56 ,  H04L67/52 ,  H04W64/003

Abstract: A database construction method includes determining a target image set that meets a preset image coincidence degree requirement, obtaining a scenario key point information set based on the target image set and natural condition information corresponding to each image, determining, in the scenario key point information set, first scenario key point information corresponding to a scenario key point whose life value on a single mobile terminal is greater than a first preset life value threshold, determining, in the first scenario key point information, second scenario key point information corresponding to a scenario key point whose life value on a plurality of mobile terminals is greater than a second preset life value threshold, and when the second scenario key point information does not match preset scenario key point information in a database, constructing the database based on the second scenario key point information.