US 12,192,627 B2
Signal processing device, signal processing method, signal processing program, imaging apparatus and lens apparatus
Toshiki Kobayashi, Saitama (JP); Yota Akashi, Saitama (JP); Yuya Hirakawa, Saitama (JP); and Yuta Watanabe, Saitama (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Mar. 22, 2023, as Appl. No. 18/188,301.
Application 18/188,301 is a continuation of application No. PCT/JP2021/034508, filed on Sep. 21, 2021.
Claims priority of application No. 2020-159970 (JP), filed on Sep. 24, 2020.
Prior Publication US 2023/0232104 A1, Jul. 20, 2023
Int. Cl. H04N 23/68 (2023.01); H04N 23/60 (2023.01); H04N 23/73 (2023.01); H04N 23/80 (2023.01)
CPC H04N 23/683 (2023.01) [H04N 23/64 (2023.01); H04N 23/73 (2023.01); H04N 23/80 (2023.01)] 12 Claims
OG exemplary drawing
 
11. A signal processing method for processing a signal which is output from a blurring detection sensor in progress of exposure of an imaging element, the signal processing method comprising:
processing of generating a second signal obtained by performing high-pass filter processing on a first signal which is output from the blurring detection sensor; and
processing of calculating an amount of blurring on the basis of the first signal or the second signal,
wherein in the processing of calculating the amount of blurring, a signal to be used for calculating the amount of blurring is switched on the basis of an exposure time of the imaging element and an elapsed time for calculation in the high-pass filter processing.