公开(公告)号：US20230210369A1

公开(公告)日：2023-07-06

申请号：US18008486

申请日：2021-06-22

Applicant: KOWA COMPANY, LTD.

Inventor： Yuka SUGIURA ,  Katsumi YABUSAKI ,  Takao SHINOHARA

IPC: A61B3/16 ,  A61B5/01

CPC classification number: A61B3/16 ,  A61B5/015

Abstract: The method for estimating the fluid state of a liquid of the present invention includes a step (a) of applying heat to the liquid, a step (b) of acquiring a temperature distribution of the liquid to which the heat is applied, and a step (c) of estimating the fluid state of the liquid based on the acquired temperature distribution. The system for estimating the fluid state of a liquid of the present invention includes a heating means (1) that applies heat to the liquid, a temperature distribution acquisition means (2) that acquires a temperature distribution of the liquid to which the heat is applied, and an estimation means (3) that estimates the fluid state of the liquid based on the acquired temperature distribution. According to such method and system for estimating the fluid state of a liquid, the flow of the liquid can be estimated non-invasively.

公开(公告)号：US20200367743A1

公开(公告)日：2020-11-26

申请号：US16637210

申请日：2018-08-09

Applicant: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION ,  KOWA COMPANY, LTD.

Inventor： Norihiko YOKOI ,  Yuka SUGIURA ,  Katsumi YABUSAKI

IPC: A61B3/10 ,  G06T7/13 ,  G06T7/00 ,  G06T7/136

Abstract: A method for dynamically evaluating a tear fluid layer using an interference fringe image of the tear fluid layer composed of a plurality of consecutive frames, and includes: an image creation step of creating at least one break detection image of a first break detection image, a second break detection image, a third break detection image, and a fourth break detection image, which are images for detecting a breaking site of the tear fluid layer; a determination step of determining whether the break detection image created by the image creation step corresponds to a predetermined breakup pattern; a tally step of tallying the determination results determined by the determination step; and an evaluation step of evaluating, on the basis of a tallied result by the tally step, a breakup pattern of the interference fringe image of the tear fluid layer.