PROBLEM TO BE SOLVED: To provide a road surface inspecting apparatus for inspecting a road surface by using an inexpensive and simple method.SOLUTION: A road surface inspecting apparatus comprises: an image acquisition unit for acquiring an image of an area including a recess 50 formed on a road surface 90, on the road surface 90 of a road irradiated with light from a light source 110; a detector for detecting a position of a boundary between the road surface 90 and the recess 50 in the image; a measurement unit for measuring the length IR of a shadow 58 casted on the recess 50 with light in the image; and an estimation unit for estimating a depth x of the recess 50, on the basis of a positional relation between the light source 110 and the position of the boundary in the image and on the length IR of the shadow 58 in the image.SELECTED DRAWING: Figure 6

    【課題】安価で容易な方法で路面を検査する路面検査装置を提供する。【解決手段】光源110から光が照射された道路の路面90における、路面90に形成された窪み50を含む領域を撮像した画像を取得する画像取得部と、画像において、路面90と窪み50との境界の位置を検出する検出部と、画像において、光により窪み50に映った影58の長さIRを測定する測定部と、画像における、光源110と境界の位置との位置関係、及び、画像における影58の長さIRに基づいて、窪み50の深さxを推定する推定部とを備える。【選択図】図6


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    Title :

    ROAD SURFACE INSPECTING APPARATUS, ROAD SURFACE INSPECTING METHOD AND PROGRAM


    Additional title:

    路面検査装置、路面検査方法及びプログラム


    Contributors:

    Publication date :

    2018-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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