公开(公告)号：US20230195839A1

公开(公告)日：2023-06-22

申请号：US17555723

申请日：2021-12-20

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Binghong WU ,  Yehui YANG ,  DaLU YANG ,  Yanwu XU ,  Lei WANG ,  Qian LI

IPC: G06K9/62

CPC classification number: G06K9/6257 ,  G06K9/6232 ,  G06K9/6201

Abstract: Technical solutions relate to the field of artificial intelligence such as deep learning, computer vision and intelligent imaging. A method may includes during training of a one-stage object detecting model, acquiring values of a loss function corresponding to feature maps at different scales respectively in the case that classification loss calculation is required, and the loss function is a focal loss function; and determining a final value of the loss function according to the acquired values of the loss function, and training the one-stage object detecting model according to the final value of the loss function.

公开(公告)号：US20210192728A1

公开(公告)日：2021-06-24

申请号：US17097632

申请日：2020-11-13

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Fangxin SHANG ,  Yehui YANG ,  Lei WANG ,  Yanwu XU

IPC: G06T7/00 ,  A61B3/12

Abstract: The present application discloses an image processing method, an apparatus, an electronic device and a storage medium. A specific implementation is: acquiring an image to be processed; acquiring a grading array according to the image to be processed and a grading network model, where the grading network model is a model pre-trained according to mixed samples, the number of elements contained in the grading array is C−1, C is the number of lesion grades, C lesion grades include one lesion grade without lesion and C−1 lesion grades with lesion, and a kth element in the grading array is a probability of a lesion grade corresponding to the image to be processed being greater than or equal to a kth lesion grade, where 1≤k≤C−1, and k is an integer; determining the lesion grade corresponding to the image to be processed according to the grading array.