PROBLEM TO BE SOLVED: To provide a crack analysis apparatus, crack analysis method, and crack analysis program capable of more efficient crack analysis processing.SOLUTION: A crack analysis device of one embodiment comprises an image acquisition part, a camera information acquisition part, a crack detection part, and a crack rate calculation part. The image acquisition part acquires a photographed image taken by using a camera to photograph a road surface at a prescribed angle of depression. The camera information acquisition part acquires information relating to the camera. The crack detection part performs alignment of the photographed image based on the background in the photographed image. Then, after alignment, applies processing to the photographed image to obtain an orthochromatic image, and performs processing to detect cracks in the road surface using the photographed image. The crack rate calculation part calculates the crack rate based on the orthochromatic image and the cracks in the road surface.SELECTED DRAWING: Figure 1

    【課題】ひび割れ解析処理の効率化を図ることができるひび割れ解析装置、ひび割れ解析方法及びひび割れ解析プログラムを提供することである。【解決手段】実施形態のひび割れ解析装置は、撮影画像取得部と、カメラ情報取得部と、ひび割れ検出部と、ひび割れ率算出部とを持つ。撮影画像取得部は、カメラが路面を所定の俯角で撮影することによって得られる撮影画像を取得する。カメラ情報取得部は、前記カメラに関する情報を取得する。ひび割れ検出部は、前記撮影画像に撮影されている背景に基づいて前記撮影画像の位置合わせを行い、前記位置合わせを行った後に、前記撮影画像をオルソ画像に変換する処理と、前記撮影画像を用いて前記路面のひび割れを検出する処理とを行う。ひび割れ率算出部は、前記オルソ画像と、前記路面のひび割れとに基づいて、ひび割れ率を算出する。【選択図】図1


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    Title :

    CRACK ANALYSIS APPARATUS, CRACK ANALYSIS METHOD, AND CRACK ANALYSIS PROGRAM


    Additional title:

    ひび割れ解析装置、ひび割れ解析方法及びひび割れ解析プログラム


    Contributors:

    Publication date :

    2018-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E01C Bau von Straßen, Sportplätzen oder dgl., Decken dafür , CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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