US 2018/0005057 A1 · APPARATUS AND METHOD FOR CAPTURING FACE IMAGE OF DECREASED REFLECTION ON SPECTACLES IN VEHICLE

Abstract

An apparatus and a method for capturing a face image are provided. The apparatus and method determine a reflection on spectacles of a region around an eye within a face of a driver in real time and more stably and effectively reduce an influence of the reflection from the spectacles through an exposure control, without requiring an output for a difference image. In particular, an imaging device is operated by performing an external exposure control to reduce the reflection on the spectacles in a vehicle to receive lighting on/off images and performing a difference image processing in an electronic control unit (ECU).

Claims20

Dependent claims

An apparatus for capturing a face image for monitoring a driver state in a vehicle, comprising:

an imaging device configured to capture an image of a driver;
an electronic control unit configured to adjust an exposure for the imaging device;
and
one or more light devices turned on or off by the imaging device or the electronic control unit,
wherein the electronic control unit is configured to determine whether brightness for a predetermined region within a face is saturated in the image captured by the imaging device, and determine whether to use a difference image between a lighting on image and a lighting off image.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/336,711Filed 27 Oct 2016

Priority

KR 10-2016-00836481 Jul 2016

Published

4 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

G06V 40/171
Feature extraction; Face representation: local features and components; Facial parts ; Occluding parts, e.g. glasses; Geometrical relationships
G06V 10/145
Optical characteristics of the device performing the acquisition or on the illumination arrangements: illumination specially adapted for pattern…
G06V 20/597
Inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions: recognising the driver's state or behaviour, e.g.…
G06V 40/166
Detection; Localisation; Normalisation: using acquisition arrangements

Apparatus and method for capturing face image of decreased reflection on spectacles in vehicle

Life of this patent

Apparatus and method for capturing face image of decreased reflection on spectacles in vehicle

Life of this patent

Abstract

Claims20