公开(公告)号：US20240112360A1

公开(公告)日：2024-04-04

申请号：US18098493

申请日：2023-01-18

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yu-Wei CHANG ,  Shih-Fang YANG MAO ,  Tien-Yan MA

IPC: G06T7/60 ,  G06T7/73 ,  G06T7/90 ,  G06V10/25 ,  G06V10/56

CPC classification number: G06T7/60 ,  G06T7/73 ,  G06T7/90 ,  G06V10/25 ,  G06V10/56 ,  G06T2207/10024 ,  G06T2207/30108 ,  G06T2207/30204

Abstract: A measurement system includes a camera and a processor. The camera is configured to capture a measurement card image of a measurement card, and the measurement card image includes a number of feature pattern images. The processor is electrically connected to the camera and configured for analyzing the feature pattern images to obtain a feature point coordinate of a feature point of each feature pattern image, and inputting the feature point coordinates into a conversion matrix to obtain a tip coordinate of a tip of the measurement card.