Marker system with light source

US9939130B2 · kind B2 · utility

Assignee

• VARIAN MEDICAL SYSTEMS, INC. · US

Inventors

• Andrew G. Jeung · Mountain View, US
• Hassan Mostafavi · Los Altos, US
• George Zdasiuk · Portola Valley, US
• Gary Virshup · Cupertino, US
• Dusan Baic · Santa Clara, US
• Daniel R. Bilsky · San Jose, US
• Alexander Robert Brown · San Jose, US
• Jon Carver · Pleasant Hill, US
• Graham R. Faulknor · San Mateo, US
• Alyssa J. Garver · Mountain View, US
• Arthur Kwun · Newark, US
• Michelle Richmond · Palo Alto, US
• Josh Star-Lack · Palo Alto, US
• John Van Heteren · San Francisco, US

Key dates

• Filing date: Sep 27, 2013
• Grant date: Apr 10, 2018
• Expiry date: Jan 6, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1059
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A marker system includes: a first marker; and a second marker; wherein the first marker and the second marker are configured to emit light from one or more light sources coupled to the first marker and the second marker; and wherein the first marker and the second marker are configured to emit the light for detection by a camera. A method performed using a marker system includes: generating light using one or more light sources; emitting the light at a plurality of markers that are coupled to the light sources; and detecting the light emitted from the plurality of markers using a camera; wherein the act of detecting comprises using one or more filters to reduce ambient light to a level that corresponds with a noise level of the camera while allowing light emitted from the markers to be imaged by the camera.