US 12,118,728 B2
Method and apparatus for processing a medical image
Xiaodong Zhong, Oak Park, CA (US); Vibhas S. Deshpande, Austin, TX (US); Marcel Dominik Nickel, Herzogenaurach (DE); and Stephan Kannengiesser, Wuppertal (DE)
Assigned to Siemens Healthineers AG, Forchheim (DE)
Filed by Siemens Healthineers AG, Forchheim (DE)
Filed on Jan. 24, 2022, as Appl. No. 17/648,686.
Claims priority of application No. 21154839 (EP), filed on Feb. 2, 2021.
Prior Publication US 2022/0245817 A1, Aug. 4, 2022
Int. Cl. G06T 7/00 (2017.01); G06V 10/36 (2022.01); G06V 10/75 (2022.01); G06V 10/774 (2022.01); G06V 10/82 (2022.01)
CPC G06T 7/0016 (2013.01) [G06V 10/36 (2022.01); G06V 10/751 (2022.01); G06V 10/7747 (2022.01); G06V 10/82 (2022.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30004 (2013.01); G06V 2201/03 (2022.01)] 17 Claims
OG exemplary drawing
 
1. A computer implemented method of processing a medical image, the method comprising:
receiving a medical image comprising a first plurality of pixels each having an initial pixel value;
for each of the first plurality of pixels, applying a filtering operation to the pixel to generate a filtered pixel value for the pixel based on the initial pixel values of pixels that surround the pixel in the medical image;
for each of the first plurality of pixels,
performing a comparison of the initial pixel value with the filtered pixel value, the comparison including
comparing a first parameter indicative of a difference between the initial pixel value and the filtered pixel value to a first threshold in response to determining that the initial pixel value is greater than or equal to the filtered pixel value, and
comparing a second parameter indicative of a difference between the filtered pixel value and the initial pixel value to a second threshold in response to determining that the initial pixel value is less than the filtered pixel value;
determining, based on the comparison, a plurality of erroneous pixels; and
determining, based on the comparison, a plurality of non-erroneous pixels.