PROBLEM TO BE SOLVED: To improve the visibility of images, in a drive recorder device configured to image the inside and the outside of a car simultaneously.SOLUTION: A drive recorder device includes an imaging unit 40 for imaging the inside and the outside of a vehicle 1 simultaneously, and a control unit 50 for processing image signals. The control unit 50 has an area division section 54 for dividing the whole image area G into multiple areas A0-A13, a weight setting section 55 setting a weighting factor ci for each of the multiple areas A0-A13, a weighted average calculation section 56 for calculating the weighted average La across the whole image area G of average luminance Li based on the weighting factor ci, and an exposure control section 57 for controlling exposure when the imaging unit 40 performs imaging based on the weighted average La. When imaging is performed while directing the imaging lens 41 downward, the area division section 54 divides so that at least car-inside area A1-A5 and car-outside areas A10-A13 are constituted as the multiple areas A0-A13.SELECTED DRAWING: Figure 3
【課題】車内の内外を同時に撮像するよう構成されたドライブレコーダ装置において、画像の見易さを改善する。【解決手段】車両1の内外を同時に撮像する撮像部40と、画像信号を処理する制御部50とを備える。制御部50は、画像領域G全体を複数のエリアA0〜A13に区分けするエリア区分部54と、複数のエリアA0〜A13の各々に対して重み係数ciを設定する重み設定部55と、重み係数ciに基づいて、平均輝度Liの画像領域G全体にわたる加重平均Laを算出する加重平均算出部56と、加重平均Laに基づいて撮像部40が撮像を行うときの露出を制御する露出制御部57とを有し、エリア区分部54は、撮像レンズ41を下向きにして撮像を行ったとき、複数のエリアA0〜A13として、少なくとも車内側のエリアA1〜A5と車外側のエリアA10〜A13とが構成されるように区分けする。【選択図】図3
DRIVE RECORDER DEVICE
ドライブレコーダ装置
2018-08-02
Patent
Electronic Resource
Japanese
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