Title:
IMAGING APPARATUS AND IMAGING METHOD
Document Type and Number:
Japanese Patent JP2019220840
Kind Code:
A
Abstract:
To perform illumination control accurately, by restraining whiteout and blackout in a dynamic body advancing forward, even if there are multiple dynamic bodies at different distances from an imaging apparatus, when a luminaire is used in a dark illuminance environment like night time.SOLUTION: An imaging apparatus comprises an illumination part for irradiating a subject, an imaging part including image pick-up devices performing photoelectric conversion of incident light from the subject and outputting an electric signal, a gain adjustment section for controlling the magnitude of output signal level from the image pick-up devices, an image signal processing section for generating an image signal from a signal outputted from the gain adjustment section, a dynamic body exposure amount calculation section for detecting a dynamic body by a video signal outputted from the image signal processing section, and calculating an exposure level offset signal for a selected dynamic body, and a system control section for controlling at least one of illumination level in the illumination part, the gain in the gain adjustment section, and the exposure time of the image pick-up devices in the illumination part by using a level offset signal. The imaging apparatus selects a dynamic body of exposure control object according to the direction of movement of the dynamic body, i.e., the subject.SELECTED DRAWING: Figure 1
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Inventors:
IRINOUCHI AKIRA
ASUKA MAKOTO
ASUKA MAKOTO
Application Number:
JP2018116621A
Publication Date:
December 26, 2019
Filing Date:
June 20, 2018
Export Citation:
Assignee:
HITACHI IND & CONTROL SOLUTIONS LTD
International Classes:
H04N5/235; G03B7/091; G03B7/093; G03B11/00; G03B15/00; G03B15/05; H04N5/225; H04N5/243
Attorney, Agent or Firm:
Polaire Patent Business Corporation