US 12,323,699 B2
Signal processing device, imaging device, and signal processing method
Tomonori Masuno, Kanagawa (JP); and Masahiro Watanabe, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 18/044,203
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Jul. 29, 2021, PCT No. PCT/JP2021/028160
§ 371(c)(1), (2) Date Mar. 6, 2023,
PCT Pub. No. WO2022/054450, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 2020-153940 (JP), filed on Sep. 14, 2020.
Prior Publication US 2023/0328368 A1, Oct. 12, 2023
Int. Cl. H04N 23/65 (2023.01); G06T 7/55 (2017.01); G06T 7/60 (2017.01); G06V 40/16 (2022.01)
CPC H04N 23/65 (2023.01) [G06T 7/55 (2017.01); G06T 7/60 (2013.01); G06V 40/172 (2022.01); G06T 2207/10028 (2013.01); G06T 2207/30201 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A signal processing device, comprising:
circuitry configured to:
store size information of a specific subject in a first image, wherein the size information includes a size of the specific subject;
acquire a second image as a distance image, wherein
a second resolution of the second image is lower than a first resolution of the first image, and
the first image is used in an identification processing operation to determine that a subject in the second image is the specific subject;
calculate a similarity between a size of the subject in the second image and the size of the specific subject based on a first box filter and a second box filter, wherein
a size of the first box filter is same as the size of the specific subject, and
a size of the second box filter is larger than the size of the first box filter; and
determine that the subject in the second image is a processing target subject based on the identification processing operation of the first image, wherein
the determination is based on a basis of the similarity between the size of the subject in the second image and the size of the specific subject.