PROBLEM TO BE SOLVED: To provide a distance derivation device and a distance derivation method capable of precisely deriving distance up to a recognition object.SOLUTION: A distance derivation device in an embodiment includes a calculation part, a speed detection part and a derivation part. The calculation part detects an area representing a recognition object in time-sequence images picked up by an imaging apparatus provided to a vehicle and calculates the area change rate accompanying time sequential changes of an area. The speed calculation part detects a relative speed between the vehicle and the recognition object. The derivation part derives the distance from the vehicle to a recognition object based on the area change rate calculated by the calculation part and the relative speed detected by the speed detection part.SELECTED DRAWING: Figure 2
【課題】認識対象物までの距離を正確に導出することができる距離導出装置および距離導出方法を提供すること。【解決手段】実施形態に係る距離導出装置は、算出部と、速度検出部と、導出部とを備える。算出部は、車両に設けられた撮像装置によって撮像された時系列の撮像画像における認識対象物を示す領域を検出し、領域の時間変化に伴う面積変化率を算出する。速度算出部は、車両と認識対象物との相対速度を検出する。導出部は、算出部によって算出された面積変化率と速度検出部によって検出された相対速度とに基づいて車両から認識対象物までの距離を導出する。【選択図】図2
DISTANCE DERIVATION DEVICE AND DISTANCE DERIVATION METHOD
距離導出装置および距離導出方法
2018-08-23
Patent
Electronic Resource
Japanese
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