公开(公告)号：US20220138992A1

公开(公告)日：2022-05-05

申请号：US17576575

申请日：2022-01-14

Applicant: Huawei Technologies Co., Ltd. ,  University of Science and Technology of China

Inventor： Feng WU ,  Haichuan MA ,  Dong LIU ,  Haitao YANG

IPC: G06T9/00 ,  G06T3/40

Abstract: The present disclosure provides an image decoding method based on a wavelet transform. The method includes: performing entropy decoding on the compressed bitstream to obtain a reconstructed wavelet coefficient; dequantizing the reconstructed wavelet coefficient to obtain a dequantized wavelet coefficient; and performing N inverse wavelet transforms on the dequantized wavelet coefficient based on the wavelet transform model to obtain a reconstructed image, where the wavelet transform model is implemented based on a convolutional neural network (CNN).

公开(公告)号：US20190312717A1

公开(公告)日：2019-10-10

申请号：US16449443

申请日：2019-06-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinhui WANG ,  Xingjian SHI ,  Feng WU

IPC: H04L7/00 ,  H04Q11/00 ,  H04J14/08

Abstract: Embodiments relate to optical transport technologies, and more specifically, to a clock transmission method. Under this method, a first optical data unit (ODU) container can be obtained. Phase discrimination can be performed on an obtained first clock and a first ODU clock of a transmit end, to generate a first PD value. The firstPD value can then be inserted into an overhead of the first ODU container. The first ODU container can be encapsulated into a second ODU container, and the second ODU container can be sent. A rate of the second ODU container is higher than a rate of the first ODU container. The first PD value is transmitted in the first ODU container which is not decapsulated in a subsequent transmission process. Therefore, final recovery of the first clock is not affected, so that a deviation between a finally recovered clock and the first clock is greatly reduced.

公开(公告)号：US20210227243A1

公开(公告)日：2021-07-22

申请号：US17221184

申请日：2021-04-02

Applicant: Huawei Technologies Co., Ltd. ,  University of Science and Technology of China

Inventor： Feng WU ,  Ning YAN ,  Dong LIU ,  Houqiang LI ,  Haitao YANG

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/42 ,  H04N19/80

Abstract: Embodiments of this application disclose an interpolation filter training method and apparatus, a video picture encoding and decoding method, an encoder, and a decoder. According to the training method, a first sub-pixel picture obtained through interpolation by using a conventional interpolation filter is used as label data, to train a second interpolation filter, so that the second interpolation filter obtained through training can be directly used for a pixel value, obtained through interpolation, of a first fractional pixel position. Therefore, the label data is more accurate, and coding performance of a video picture is improved. According to the encoding method, during inter prediction, a target interpolation filter used for a current encoding picture block is determined from a set of candidate interpolation filters, and the encoder selects, according to content of the current encoding picture block, an appropriate interpolation filter to perform an interpolation operation.

公开(公告)号：US20210289214A1

公开(公告)日：2021-09-16

申请号：US17217808

申请日：2021-03-30

Applicant: Huawei Technologies Co., Ltd. ,  University of Science and Technology of China

Inventor： Feng WU ,  Fangdong CHEN ,  Houqiang LI ,  Zhuoyi LV ,  Haitao YANG

IPC: H04N19/176 ,  H04N19/46 ,  H04N19/58 ,  H04N19/179 ,  H04N19/55 ,  H04N19/573 ,  H04N19/61

Abstract: The present disclosure provides a reference image encoding method, including: encoding sequence, to obtain a reconstructed image of a first and second reference images; determining whether a local area in the second reference image is suitable for updating first reference image; determining whether the first reference image is updated; when the first reference image is not updated, and it is determined the second reference image is suitable for updating the first reference image, replacing a pixel value of a corresponding area or a related area in the first reference image with a pixel value of the local area in the second reference image; and compiling, into the bitstream.

公开(公告)号：US20150381429A1

公开(公告)日：2015-12-31

申请号：US14739860

申请日：2015-06-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng WU ,  Wenzhong YE ,  Xiangrui KONG

IPC: H04L12/24

CPC classification number: H04L41/12 ,  H04L61/2596 ,  H04L61/301 ,  H04W8/12 ,  H04W60/00

Abstract: The present invention provides a network topology hiding method and device. The method includes: receiving a first service request, where the first service request is sent by a subscriber through a first network function entity and includes a name of the first network function entity and a subscriber identifier; determining a virtual name set corresponding to the name of the first network function entity, where the virtual name set includes at least two virtual names; and determining one virtual name from the virtual name set, and replacing the name of the first network function entity with the determined virtual name. The unfixed replacement further ensures effectiveness of network topology hiding.

Abstract translation: 本发明提供一种网络拓扑隐藏方法和装置。 该方法包括：接收第一服务请求，其中第一服务请求由用户通过第一网络功能实体发送，并且包括第一网络功能实体的名称和订户标识符; 确定对应于所述第一网络功能实体的名称的虚拟名称集合，其中所述虚拟名称集合包括至少两个虚拟名称; 以及从所述虚拟名称集合确定一个虚拟名称，并用所确定的虚拟名称替换所述第一网络功能实体的名称。 未固定替换进一步确保网络拓扑隐藏的有效性。

公开(公告)号：US20140307589A1

公开(公告)日：2014-10-16

申请号：US14313557

申请日：2014-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunsheng LI ,  Feng WU ,  Xuejin TIAN

IPC: H04M15/00

CPC classification number: H04M15/66 ,  H04L12/1407 ,  H04L67/1002 ,  H04L67/1036

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for determining a policy and charging rule function entity. The method includes: receiving, by a first PCRF, a first request message transmitted by a first routing agent device, where the first request message carries an IP address of a user; inquiring a pre-stored corresponding relationship between the IP address of the user and an identity of a PCRF currently serving the user according to the IP address of the user, and determining an identity of a second PCRF currently serving the user; and transmitting a message carrying the identity of the second PCRF to the first routing agent device. The method realizes that session information of the same user can be routed to the same PCRF when a biplane DRA is under a multi-PCRF networking, and provides reliable DRA signaling network networking.

Abstract translation: 本发明的实施例提供了一种用于确定策略和计费规则功能实体的方法，装置和系统。 该方法包括：由第一PCRF接收由第一路由选择设备发送的第一请求消息，其中第一请求消息携带用户的IP地址; 根据用户的IP地址询问用户的IP地址和当前正在为用户服务的PCRF的身份之间的预先存储的对应关系，以及确定当前为该用户服务的第二PCRF的身份; 以及将携带所述第二PCRF的身份的消息发送到所述第一路由代理设备。 该方法实现了当双平面DRA处于多PCRF组网下时，同一用户的会话信息可以路由到相同的PCRF，并提供可靠的DRA信令网络。