PROBLEM TO BE SOLVED: To provide a technology for further improving the measuring accuracy of a vehicle speed in the case of measuring the vehicle speed on the basis of a picked-up image.SOLUTION: A traffic flow measurement device 10 is provided, which includes an information acquisition part 111 for acquiring a picked-up image obtained by imaging a road plane and an imaging time, a position detection part 114 for detecting a prescribed detection position on the basis of a vehicle area extracted from the picked-up image, and a measurement part 115 for extracting a combination corresponding to the position of a ballot peak obtained for a plurality of combinations from the combinations of detection positions and imaging times, and measuring a vehicle speed on the basis of primary approximation by a least square method to extraction data.SELECTED DRAWING: Figure 2
【課題】撮像画像に基づいて車両速度を計測する場合において車両速度の計測精度をさらに向上させる技術を提供する。【解決手段】道路平面が撮像された撮像画像と撮像時刻とを取得する情報取得部111と、撮像画像から抽出される車両領域に基づいて所定の検出位置を検出する位置検出部114と、検出位置と撮像時刻との複数の組み合わせから当該組み合わせに対して得られる投票ピークの位置に応じた組み合わせを抽出データとして抽出し、抽出データに対する最小二乗法による一次近似に基づいて車両速度を計測する計測部115と、を備える、交通流計測装置10が提供される。【選択図】図2
TRAFFIC FLOW MEASUREMENT DEVICE AND TRAFFIC FLOW MEASUREMENT METHOD
交通流計測装置および交通流計測方法
2017-01-19
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL |
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