公开(公告)号：US10699433B2

公开(公告)日：2020-06-30

申请号：US16199064

申请日：2018-11-23

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Jia-Hao Bai ,  Tzu-Hang Huang ,  Chun-Jen Chen ,  Cheng-Hsun Lin

IPC: G06K9/00 ,  G06T7/62 ,  G06T7/73

Abstract: A liquid level detecting method is provided. Firstly, a receiving component is provided, wherein the receiving component includes a transmissive container for containing a liquid and a marking component located on a rear surface of the transmissive container. Then, a camera captures a receiving component image of the receiving component from a front surface of the transmitting container, wherein the receiving component image includes a transmissive container image and a marking component image. Then, the marker component image is analyzed downward from an end portion to obtain multiple width values of multiple position points of the marker component image. Then, a width difference between each width value and a width average of the marking component image is obtained. Then, a position point whose width difference value is not within a preset range is determined. Then, according to the position point, a liquid level of the liquid is determined.