US 12,211,182 B2
Scanner noise elimination for scanned films
Michael Smith, Hermosa Beach, CA (US); Michael Zink, Altadena, CA (US); and Christopher Nolan, Los Angeles, CA (US)
Assigned to Warner Bros. Entertainment Inc., Burbank, CA (US)
Filed by Warner Bros. Entertainment Inc., Burbank, CA (US)
Filed on Apr. 18, 2022, as Appl. No. 17/723,231.
Application 17/723,231 is a continuation of application No. PCT/US2020/056394, filed on Oct. 19, 2020.
Claims priority of provisional application 62/923,392, filed on Oct. 18, 2019.
Prior Publication US 2022/0351336 A1, Nov. 3, 2022
Int. Cl. G06T 5/70 (2024.01); G06T 5/20 (2006.01)
CPC G06T 5/70 (2024.01) [G06T 5/20 (2013.01); G06T 2207/10008 (2013.01); G06T 2207/10016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for preparing digital image data from an analog image input, the method comprising:
scanning, by an analog-to-digital image scanner, an analog image for multiple iterations, resulting in digital image data for each of the iterations;
calculating, by at least one processor, a noise statistic for scanner noise of individual pixels of the digital image data across the iterations;
determining, by the at least one processor, true values of individual pixels of the digital image data based on the noise statistic for each of the individual pixels and generating scanner noise reduced digital image data wherein pixels are assigned their respective ones of the true values; and
saving the scanner noise reduced digital image data in a computer memory.