US 12,243,450 B2
Systems and methods for adding persistence to single photon avalanche diode imagery
Raymond Kirk Price, Carnation, WA (US); Michael Bleyer, Seattle, WA (US); and Christopher Douglas Edmonds, Carnation, WA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Dec. 7, 2023, as Appl. No. 18/532,882.
Application 18/532,882 is a continuation of application No. 17/246,516, filed on Apr. 30, 2021, granted, now 11,881,129.
Prior Publication US 2024/0112605 A1, Apr. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G08B 5/22 (2006.01); G06T 7/207 (2017.01); G06T 7/70 (2017.01); G06V 10/25 (2022.01); G06V 10/75 (2022.01); G09F 9/33 (2006.01); H01L 31/107 (2006.01)
CPC G09F 9/33 (2013.01) [G06T 7/207 (2017.01); G06T 7/70 (2017.01); G06V 10/25 (2022.01); G06V 10/7557 (2022.01); H01L 31/107 (2013.01); G09G 2320/06 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for adding persistence to single photon avalanche diode (SPAD) imagery, the method comprising:
capturing, using a SPAD array comprising a plurality of SPAD pixels, a plurality of image frames;
capturing, using an inertial measurement unit (IMU) configured to capture pose data, pose data associated with the plurality of image frames, the pose data comprising at least respective pose data associated with each of the plurality of image frames;
determining a persistence term based on the pose data, wherein the persistence term comprises a weighting term and one or more terms defining (i) alpha blending or (ii) smoothness; and
generating a composite image based on the plurality of image frames, the respective pose data associated with each of the plurality of image frames, and the persistence term, wherein the persistence term defines a contribution of each of the plurality of image frames to the composite image.