公开(公告)号：US10609282B2

公开(公告)日：2020-03-31

申请号：US15391362

申请日：2016-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changqi Hu ,  Yong Tian ,  Zijin Yuan

IPC: H04N5/232 ,  G06T3/40 ,  G06T7/33 ,  G06T7/70 ,  G06K9/62 ,  H04N5/265 ,  H04N17/00

Abstract: A wide-area image acquiring method which includes capturing a global image in a preset wide-area visual area, capturing at least two partial images whose definition is preset and that are in the preset wide-area visual area, where the global image covers at least an overlap portion of view ranges of the partial images in the preset wide-area visual area, and a sum of the view ranges of the at least two partial images is greater than or equal to a view range of the global image, determining, in the global image, positions of edges of the partial images, based on same shot objects in the partial images and the global image, and performing splice processing on the at least two partial images according to the positions of the edges, to obtain a composite wide-area image of the wide-area visual area.

公开(公告)号：US10673760B2

公开(公告)日：2020-06-02

申请号：US15336287

申请日：2016-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibi Huang ,  Yong Huang ,  Yong Tian ,  Linda Dunbar

IPC: H04L12/46 ,  H04L12/833 ,  H04L12/24 ,  H04L12/803 ,  H04L29/08 ,  H04L12/721

Abstract: A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function PCRF unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.

公开(公告)号：US20170111582A1

公开(公告)日：2017-04-20

申请号：US15391362

申请日：2016-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changqi Hu ,  Yong Tian ,  Zijin Yuan

IPC: H04N5/232 ,  H04N17/00 ,  G06K9/62 ,  H04N5/265 ,  G06T7/70

CPC classification number: H04N5/23238 ,  G06K9/6215 ,  G06T3/4038 ,  G06T7/33 ,  G06T7/70 ,  G06T2200/32 ,  G06T2207/10016 ,  G06T2207/30204 ,  G06T2207/30208 ,  H04N5/265 ,  H04N17/002

Abstract: A wide-area image acquiring method which includes capturing a global image in a preset wide-area visual area, capturing at least two partial images whose definition is preset and that are in the preset wide-area visual area, where the global image covers at least an overlap portion of view ranges of the partial images in the preset wide-area visual area, and a sum of the view ranges of the at least two partial images is greater than or equal to a view range of the global image, determining, in the global image, positions of edges of the partial images, based on same shot objects in the partial images and the global image, and performing splice processing on the at least two partial images according to the positions of the edges, to obtain a composite wide-area image of the wide-area visual area.

公开(公告)号：US10397120B2

公开(公告)日：2019-08-27

申请号：US15280682

申请日：2016-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi Huang ,  Yong Tian ,  Linda Dunbar

IPC: G01R31/08 ,  H04L12/851 ,  H04L12/24 ,  H04L29/08 ,  H04L12/725 ,  H04M15/00 ,  H04L12/859 ,  H04L12/721

Abstract: Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.

公开(公告)号：US11539626B2

公开(公告)日：2022-12-27

申请号：US16876784

申请日：2020-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi Huang ,  Yong Huang ,  Yong Tian ,  Linda Dunbar

IPC: H04L47/125 ,  H04L67/10 ,  H04L67/1023 ,  H04L12/46 ,  H04L45/00 ,  H04L67/1001 ,  H04L47/31 ,  H04L41/50

Abstract: A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function (PCRF) unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.

公开(公告)号：US11240159B2

公开(公告)日：2022-02-01

申请号：US16529325

申请日：2019-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi Huang ,  Yong Tian ,  Linda Dunbar

IPC: G01R31/08 ,  H04L12/851 ,  H04L12/24 ,  H04L12/725 ,  H04L29/08 ,  H04L12/721 ,  H04M15/00 ,  H04L12/859

Abstract: Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.