Use of spectral leaks to obtain high spatial resolution information for hyperspectral imaging

US11095835B2 · kind B2 · utility

Assignee

• IMEC VZW · BE

Inventors

• Nicolaas Tack · Buggenhout, BE
• Andy Lambrechts · Herent, BE

Key dates

• Filing date: Dec 20, 2019
• Grant date: Aug 17, 2021
• Expiry date: Dec 20, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N25/618
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An example method and hyperspectral imaging (HSI) system for imaging a scene are provided. The method is for imaging the scene with the HSI system including a sensor with a plurality of sensor pixels and a plurality of spectral filters, each of the spectral filters being associated with one of the sensor pixels. The method comprises obtaining a higher-resolution spatial image by illuminating the scene with a first set of wavelengths, wherein each spectral filter passes the first set of wavelengths to the sensor pixel it is associated with. The method further comprises obtaining a lower-resolution hyperspectral image by illuminating the scene with a second set of wavelengths, wherein each spectral filter passes only a subset of the second set of wavelengths to the sensor pixel it is associated with.