公开(公告)号：US09912859B2

公开(公告)日：2018-03-06

申请号：US15629828

申请日：2017-06-22

Applicant: FUJIFILM Corporation

Inventor： Yitong Zhang

IPC: H04N5/228 ,  H04N5/232 ,  G06K9/00 ,  G06K9/62 ,  G03B13/36

CPC classification number: H04N5/23212 ,  G03B13/36 ,  G06K9/00248 ,  G06K9/00255 ,  G06K9/00604 ,  G06K9/6202 ,  H04N5/23219 ,  H04N5/23293

Abstract: Disclosed are a focusing control device, an imaging device, a focusing control method, and a focusing control program capable of enabling focusing on an eye region and obtaining an intended focusing result. The focusing control device includes a focusing position determination unit 34 which determines a focusing position based on a captured image signal obtained by imaging a subject with an imaging element 5 while moving a focus lens, and an AF region determination unit 33 which determines an AF region based on a face region detected from a captured image signal obtained through imaging with the imaging element 5 at an arbitrary time and an eye region detected from a captured image signal obtained through imaging at a time before the arbitrary time. The focus lens is driven to the focusing position determined by the focusing position determination unit 34 based on a signal of the AF region.

公开(公告)号：US10771673B2

公开(公告)日：2020-09-08

申请号：US16116922

申请日：2018-08-30

Applicant: FUJIFILM CORPORATION

Inventor： Koichi Tanaka ,  Yitong Zhang ,  Tetsuya Fujikawa

IPC: H04N5/232 ,  G02B7/36 ,  G02B7/09 ,  H04N5/235

Abstract: The focusing position detecting device includes contrast evaluation value calculating unit configured to calculate contrast evaluation values from a plurality of image data items obtained by imaging a subject a multiple number of times at a set exposure time while moving a focus lens in an optical axis direction within a search range, focusing position calculating unit configured to calculate a focusing position from focus positions at the time of imaging the subject a multiple number of times and the contrast evaluation values calculated by the contrast evaluation value calculating unit, detection unit configured to detect atmospheric fluctuation, and exposure time setting unit configured to set an exposure time in a case where the detection unit detects the atmospheric fluctuation so as to be longer than an exposure time in a case where the detection unit does not detect the atmospheric fluctuation.

公开(公告)号：US09948828B2

公开(公告)日：2018-04-17

申请号：US14717008

申请日：2015-05-20

Applicant: FUJIFILM Corporation

Inventor： Hisashi Endo ,  Yitong Zhang ,  Masahiko Sugimoto ,  Junya Kitagawa ,  Kosuke Kuribayashi

IPC: H04N1/60 ,  H04N9/68 ,  H04N5/232 ,  H04N9/04 ,  H04N9/12 ,  H04N1/62 ,  H04N9/64

CPC classification number: H04N1/6027 ,  H04N1/62 ,  H04N5/23216 ,  H04N5/23293 ,  H04N9/045 ,  H04N9/12 ,  H04N9/643 ,  H04N9/68

Abstract: A subject is imaged repeatedly and color images of the subject are obtained. A color histogram is generated from the color subject image obtained and a representative color is decided from the color histogram generated. A specific color range that can be considered a color identical with the representative color is decided from the color histogram and representative color. Color outside the specific color range in the color subject image is changed to gray, an image of the subject in which the non-specific colors have been changed to gray is obtained and the image is displayed. Processing such as deciding the specific color range is repeated. When an instruction to fix the specific color is issued, the specific color range is fixed.