PROBLEM TO BE SOLVED: To provide an overhead wire position measurement apparatus using image processing, configured to improve the accuracy of stereo measurement even when an image captured by a line sensor camera has unevenness due to an uneven grayscale distribution, and an overhead wire position measurement method.SOLUTION: An image processing section includes: an image input section 5a and a laser input section 5b; a processing setting section 5c for setting a processing parameter; a line detection section 5d for detecting a line on the basis of image data; an overhead wire coordinate estimation section 5e for estimating overhead wire coordinates, on the basis of laser distance data; an overhead wire detection section 5f for detecting an overhead wire from the image data, on the basis of line data and overhead wire estimation data; an overhead wire coordinate correction section 5g for correcting the overhead wire coordinates, on the basis of the overhead wire coordinate data; a stereo measurement section 5h for calculating a position of the overhead wire, on the basis of the overhead wire coordinate data corrected by the overhead wire coordinate correction section; and a height/deviation calculation section 5i for calculating a height and deviation of the overhead wire, on the basis of overhead wire position data.

    【課題】ラインセンサカメラによって撮像した画像に濃淡値分布の偏りによるムラが生じた場合であってもステレオ計測の精度を向上させることを可能とした画像処理による架線位置測定装置及び架線位置測定方法を提供する。【解決手段】画像処理部を、画像入力部5a及びレーザ入力部5bと、処理パラメータの設定を行う処理設定部5cと、画像データに基づいて線条を検出する線条検出部5dと、レーザ距離データに基づいて架線座標を推定する架線座標推定部5eと、線条データ及び架線座標推定データに基づき画像データから架線を検出する架線検出部5fと、架線座標データに基づき架線座標の補正を行う架線座標補正部5gと、架線座標補正部により補正された架線座標データに基づき架線の位置を算出するステレオ計測部5hと、架線位置データに基づき架線の高さ及び偏位を算出する高さ・偏位算出部5iとから構成した。【選択図】図2


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    Title :

    OVERHEAD WIRE POSITION MEASUREMENT APPARATUS USING IMAGE PROCESSING, AND OVERHEAD WIRE POSITION MEASUREMENT METHOD


    Additional title:

    画像処理による架線位置測定装置及び架線位置測定方法


    Contributors:

    Publication date :

    2015-08-20


    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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS



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