Title:
焦点調節装置及び方法、及び撮像装置
Document Type and Number:
Japanese Patent JP6742173
Kind Code:
B2
Abstract:
In a focus adjusting apparatus, a tracking unit detects from an image signal an area of a subject to be tracked, a position of an imaging plane of the area and reliability of the position, and a prediction unit predicts a position of an imaging plane when the image signal was obtained based on a history of detected positions of imaging planes. A setting unit sets a tolerance based on the reliability, and a determination unit determines the area of the detected subject as a focus adjustment area if a difference between the predicted and detected positions is within the tolerance. The prediction unit predicts a position of an imaging plane of the subject in the focus adjustment area at a future time point.
Inventors:
Ryosuke Tsuji
Application Number:
JP2016131036A
Publication Date:
August 19, 2020
Filing Date:
June 30, 2016
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B7/28; G03B13/36; G03B15/00; H04N5/232
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu