Automatic Method for Extracting Cutting Line of Filler of Cultural Relics' Safety Box

doi:10.13474/j.cnki.11-2246.2018.0307

测绘通报 ›› 2018, Vol. 0 ›› Issue (10): 17-21.doi: 10.13474/j.cnki.11-2246.2018.0307

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Automatic Method for Extracting Cutting Line of Filler of Cultural Relics' Safety Box

SONG Yueting¹, ZHENG Shunyi¹, WANG Xiaonan², DUAN Zhixin³

1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;
2. Wuhan Zhongguan Automation Technology Company Limited, Wuhan 430079, China;
3. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China

Received:2017-12-08 Revised:2018-05-16 Online:2018-10-25 Published:2018-10-31

Abstract

Abstract: In the process of transport,the cultural relics need to be placed in a safety box of considerable shape to protect it from damage.At present,the cutting line of the filler of the safety box was measured and drawn manually.This was time consuming and laborious,and the cutting line didn't fit the object very well.To solve these problems,this paper presented a method to automatically determine the cutting line.Firstly,it preprocessed the image and extracted the contour using the boundary tracking method.Secondly,it established the reference relationship between image and object using homography matrix and proposed the error correction equation.Finally,it applied the quantitative scaling and curve fitting to the contours according to the actual needs.The experiments demonstrate that the proposed method can automatically and efficiently determine the cutting line,and the cutting line fits the object well.

Key words: safety box, cutting line, contour extraction, homography matrix, curve fitting

CLC Number:

SONG Yueting, ZHENG Shunyi, WANG Xiaonan, DUAN Zhixin. Automatic Method for Extracting Cutting Line of Filler of Cultural Relics' Safety Box[J]. 测绘通报, 2018, 0(10): 17-21.

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Automatic Method for Extracting Cutting Line of Filler of Cultural Relics' Safety Box

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