PROBLEM TO BE SOLVED: To provide a vehicle detection alarm device and a vehicle detection alarm method which detect approach of another vehicle by using head lamps of the another vehicle so as to turn on an alarm, and which can reliably turn off the alarm when the another vehicle passes by an own vehicle.SOLUTION: A vehicle detection alarm device 1 includes: a rear camera 10; a vehicle detection section 20 for detecting a rear vehicle on the basis of high luminance regions included in acquired images; an alarm turn-on determination section 22 for turning on an alarm by an alarm processing section 24 when detecting the rear vehicle; a totalling section 18 for totalling the number of times that the high luminance regions are included in the images acquired from a plurality of image pickups by the rear camera 10; an area calculation section 32 for calculating the area of the high luminance regions; and an alarm turn-off determination section 36 for turning off the alarm by the alarm processing section 24 when the number of the times totalled by the totalling section 18 decreases and besides the area calculated by the area calculation section 32 becomes a predetermined value or less.SELECTED DRAWING: Figure 1
【課題】他の車両の前照灯を利用して他の車両の接近を検知して警報を行うとともに、他の車両が自車両を追い越していった際に確実に警報を終了させることができる車両検知警報装置および車両検知警報方法を提供すること。【解決手段】車両検知警報装置1は、後方カメラ10と、得られた画像に含まれる高輝度領域に基づいて後方車両を検出する車両検出部20と、後方車両を検出したときに警報処理部24による警報を開始させる警報開始判定部22と、後方カメラ10による複数回の撮像によって得られた画像に高輝度領域が含まれる回数を計数する集計部18と、記高輝度領域の面積を算出する面積算出部32と、集計部18によって計数した回数が減少し、かつ、面積算出部32によって算出された面積が所定値以下になったときに、警報処理部24による警報を終了させる警報終了判定部36とを備えている。【選択図】図1
VEHICLE DETECTION ALARM DEVICE AND VEHICLE DETECTION ALARM METHOD
車両検知警報装置および車両検知警報方法
2017-04-06
Patent
Electronic Resource
Japanese
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