Automatic draft reading based on image processing

Tsujii Takahiro; Yoshida Hiromi; Iiguni Youji

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Automatic draft reading based on image processing

机译：Automatic draft reading based on image processing

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摘要

In marine transportation, a draft survey is a means to determine the quantity of bulk cargo. Automatic draft reading based on computer image processing has been proposed. However, the conventional draft mark segmentation may fail when the video sequence has many other regions than draft marks and a hull, and the estimated waterline is inherently higher than the true one. To solve these problems, we propose an automatic draft reading method that uses morphological operations to detect draft marks and estimate the waterline for every frame with Canny edge detection and a robust estimation. Moreover, we emulate surveyors' draft reading process for getting the understanding of a shipper and a receiver. In an experiment in a towing tank, the draft reading error of the proposed method was < 1 cm, showing the advantage of the proposed method. It is also shown that accurate draft reading has been achieved in a real-world scene. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.

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来源
《Optical Engineering》 |2016年第10期|104104-1-104104-9|共9页
作者
Tsujii Takahiro; Yoshida Hiromi; Iiguni Youji;
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作者单位

Osaka Univ, Grad Sch Engn Sci, Syst Innovat, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
draft survey; edge detection; image processing; machine vision; marine transportation; morphological operations;

Automatic draft reading based on image processing

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