US 12,470,846 B1
Noise reduction method for very low light level night vision
Michael A. Ropers, Cedar Rapids, IA (US)
Assigned to Rockwell Collins, Inc., Cedar Rapids, IA (US)
Filed by Rockwell Collins, Inc., Cedar Rapids, IA (US)
Filed on May 10, 2024, as Appl. No. 18/661,053.
Int. Cl. H04N 25/60 (2023.01); H04N 23/80 (2023.01)
CPC H04N 25/60 (2023.01) [H04N 23/80 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A computer apparatus comprising:
at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
receive an image stream;
identify a single photon event in a frame of the image stream;
associate the single photon event with a pixel;
record the single photon event and pixel;
flag the pixel state as LATCH; and
calculate an inverse wavelet transform on the pixel flagged as LATCH using a pixel data corresponding to the single photon event.