The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2019
Filed:
Dec. 22, 2014
Universitat Zurich, Zurich, CH;
Eth Zurich, Zurich, CH;
Christian Brandli, Zurich, CH;
Tobias Delbruck, Zurich, CH;
Markus Andreas Hopflinger, Wallisellen, CH;
Marco Hutter, Kriessern, CH;
Thomas Albert Mantel, Winterthur, CH;
Universitat Zurich, Zurich, CH;
Eth Zurich, Zurich, CH;
Abstract
The present invention relates to a method for detecting and reconstructing a surface illuminated with spatially structured light such that the light illuminates an area of the surface from which the light is reflected back. The light includes a temporarily varying intensity in the form of successive light modulation patterns. The back-reflected light is detected by an optical sensor including a plurality of pixels. A pixel coordinate is associated to each pixel and each pixel generated a photocurrent proportional to the intensity of the light impinging on a respective pixel, computes a signal related to a photocurrent, and each pixel outputs an address-event merely when a respective signal due to the light impinging on the respective pixel increases by an amount larger than a first threshold or decreases by an amount larger than a second threshold since a last address-event from the respective pixel.