METHOD AND APPARATUS FOR MEASURING A HEIGHT OF A VEHICLE

METHOD AND APPARATUS FOR MEASURING A HEIGHT OF A VEHICLE

A method of measuring a height (h) of a vehicle (2) on a road (3) comprises recording with a vehicle classification sensor (6) a 3D representation (11) of the vehicle (2) passing the section (5) and recording with a camera (12) a 2D image (15) of at least an upper portion (16) of the vehicle (2) and...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: CRONA, Björn
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Beschreibung
Zusammenfassung:A method of measuring a height (h) of a vehicle (2) on a road (3) comprises recording with a vehicle classification sensor (6) a 3D representation (11) of the vehicle (2) passing the section (5) and recording with a camera (12) a 2D image (15) of at least an upper portion (16) of the vehicle (2) and a background (17); determining an edge profile (12) between the upper portion (16) and the background (17) establishing a fan (24) of rays (25) each extending from the elevated point (PCAM) and through a different one of multiple points (Pi) along the edge profile (22); shifting the 3D representation (11) in the coordinate system (8) in height (z) until it is tangent to said fan (24); and determining said height (h) of the vehicle (2) from the shifted 3D representation (11') in the coordinate system (8). The invention further relates to an apparatus (1) for performing this method.