Yi Yang

US Patent:

20220392043, Dec 8, 2022

Filed:

Jan 23, 2020

Appl. No.:

17/778210

Inventors:

- Spring TX, US
Yousun Bang - Seangnam Si, KR
Minki Cho - Pangyo, KR
Mark Shaw - Boise ID, US
Jan Allebach - Boise ID, US
Runzhe Zhang - Boise ID, US
Yi Yang - Boise ID, US

International Classification:

G06T 7/00
G06V 10/25
H04N 1/00

Abstract:

For each region of interest (ROI) type of a number of ROI types, ROIs of the ROI type within a reference image are compared to corresponding ROIs within a test image corresponding to the reference image and printed by a printing device. For each ROI type, a feature vector characterizing image quality defects within the test image for the ROI type is generated based on results of the comparing for the ROI type. Whether print quality of the printing device has degraded below a specified acceptable print quality level can be assessed based on the feature vectors for the ROI types.