Systems and methods for imaging and sensing vibrations

US11885669B2 · kind B2 · utility

Assignee

• PROPHESEE · FR

Inventors

• Geoffrey Francis Burns · Macungie, US
• Manuele Brambilla · Paris, FR
• Christoph Posch · Bad Fischau, AT
• Gaspard Florentz · Paris, FR
• Stephane Valente · Paris, FR

Key dates

• Filing date: Apr 24, 2020
• Grant date: Jan 30, 2024
• Expiry date: Nov 11, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01H9/002
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure generally relates to systems and methods for imaging and sensing vibrations of an object. In one implementation, a system is provided for detecting vibrations that comprises a sensor with a plurality of pixels, each pixel including at least one photosensitive element. The sensor is configured to output signals related to illumination on each pixel. The system also includes at least one processor configured to receive the output signals from the sensor and detect, based on the output signals, one or more polarities. The at least one processor is also configured to determine timestamps associated with the output signals, analyze the timestamps and the polarities to detect vibrations of an object in the field of view of the sensor, and determine one or more frequencies of the detected vibrations.