公开(公告)号：US20240385336A1

公开(公告)日：2024-11-21

申请号：US18689863

申请日：2023-05-06

Applicant: Zhejiang Cancer Hospital

Inventor： Wenjie WU ,  Guoping SHAN ,  Jinhui CHANG ,  Jiping LIU ,  Binbing WANG ,  Feng LU ,  Yixuan JIN ,  Xue BAI ,  Xiaolong CHENG ,  Xiaotong WANG

IPC: G01T1/20 ,  C12Q1/02 ,  G01T7/00

Abstract: The present disclosure discloses a method for measuring two-dimensional distribution of an industrial irradiation dose based on sprouting lag time of spores, and provides a film for measuring distribution of an industrial irradiation dose. The method includes the following steps: (1) manufacturing the film: spreading a layer of spore suspension flat on a plane of a carrier, and evaporating a suspension solvent to fix a layer of spore pixel surface on the plane of the carrier; covering the carrier with a glass lid to form a sprouting cavity to cover the spore pixel surface within the sprouting cavity; and providing the glass lid with a filling hole configured to add a sprouting agent; (2) obtaining a calibration curve; and (3) measuring the irradiation dose.

公开(公告)号：US20220130048A1

公开(公告)日：2022-04-28

申请号：US17571562

申请日：2022-01-10

Applicant: ZHEJIANG CANCER HOSPITAL

Inventor： Jie ZHANG ,  Xue BAI ,  Guoping SHAN

IPC: G06T7/00 ,  G06T7/246 ,  A61B5/06 ,  G16H40/60 ,  G06N3/04 ,  G06V10/75

Abstract: Provided is a system and method for estimating the motion of a target inside a tissue based on surface deformation of the soft tissue. The system consists of an acquisition unit, a reference input unit, two surface extraction units, a target position extraction unit, a feature calculation unit, and a target motion estimation unit. The method includes: the acquisition unit acquires an image Ii of the soft tissue; the surface extraction unit extracts a surface fi of the soft tissue from Ii; the reference input unit acquires a reference image Iref of the soft tissue; the surface extraction unit and the target position extraction unit respectively extract a reference surface fref of the soft tissue and a target reference position tref from Iref, the feature calculation unit calculates deformation feature Ψi of fi relative to fref, the target motion estimation unit estimates the target displacement based on Ψi and tref.