Video image-based vehicle head interval measurement method and system

The invention discloses a video image-based vehicle head interval measurement method and system. The method includes the following steps that: camera parameters are determined; measurement points are determined on vehicles to be measured; the world coordinates of the measurement points are calculate...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG RUIJUAN, JIANG QIANYIN, YU ZHI, LI XIYING
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a video image-based vehicle head interval measurement method and system. The method includes the following steps that: camera parameters are determined; measurement points are determined on vehicles to be measured; the world coordinates of the measurement points are calculated according to the camera parameters; the vehicle head positions of each of the vehicles to be measured are calculated according to the world coordinates of the measurement points; and the interval of the vehicle heads of two adjacent vehicles is calculated according to the vehicle head positions of each of the vehicles to be measured. According to the video image-based vehicle head interval measurement method and system of the invention, the interval of the vehicle heads is calculated based on video images, so that error can be small; the camera parameters, the measurement points and the world coordinates of the measurement points are just needed to be determined, and the automatic measurement of the head interval