US 12,439,022 B2
Evaluation method of image blur correction capability of image capturing apparatus, image capturing apparatus, and recording medium
Go Naito, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 10, 2023, as Appl. No. 18/349,339.
Claims priority of application No. 2022-111602 (JP), filed on Jul. 12, 2022.
Prior Publication US 2024/0022706 A1, Jan. 18, 2024
Int. Cl. H04N 23/68 (2023.01); H04N 17/00 (2006.01)
CPC H04N 17/002 (2013.01) [H04N 23/6812 (2023.01); H04N 23/687 (2023.01)] 17 Claims
OG exemplary drawing
 
1. An evaluation method for an image blur correction capability of an image capturing apparatus, the method comprising:
acquiring a captured image of a subject;
acquiring a detection signal relating to vibrations applied to the image capturing apparatus; and
evaluating the image blur correction capability based on a first blur amount calculated based on the acquired captured image, and a second blur amount calculated based on the acquired detection signal relating to the vibrations,
wherein the image blur correction capability is evaluated based on a first ratio, which is a ratio of the first blur amount and the second blur amount that are calculated in a case in which a blur correcting unit of the image capturing apparatus has not been made to operate, and a second ratio, which is a ratio of the first blur amount and the second blur amount that are calculated in a case in which the blur correcting unit has been made to operate, and
wherein in the evaluating, the smaller the second ratio is in relation to the first ratio, the higher of an evaluation value is output to serve as the image blur correction capability.