公开(公告)号：US20180255224A1

公开(公告)日：2018-09-06

申请号：US15760123

申请日：2016-09-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Sho IKEMURA ,  Yasuhiro MORI ,  Mutuhiro YAMANAKA ,  Toshiharu TAKENOUCHI

IPC: H04N5/235 ,  G03B15/02

CPC classification number: H04N5/2354 ,  G03B7/091 ,  G03B15/02 ,  H04N5/2351 ,  H05B37/0227 ,  Y02B20/44

Abstract: The illuminance acquisition device includes a setting unit, a human sensing unit, and an illuminance acquisition unit. The setting unit sets an illuminance acquisition area (as a first area) for use to acquire an illuminance in an image capturing area of an image capturing unit. The human sensing unit determines, based on an image captured by the image capturing unit, whether or not there is any human in a human sensing area (as a second area) of the image capturing area. The illuminance acquisition unit calculates, based on the image, a spatial illuminance in the first area.