Portrait stone crack intelligence extraction and virtual restoration method

A technology of virtual restoration and portrait stone, applied in image enhancement, image data processing, graphics and image conversion, etc.

Inactive Publication Date: 2016-08-10
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At home and abroad, there are few studies on image restoration of portrait stones. At prese...

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  • Portrait stone crack intelligence extraction and virtual restoration method
  • Portrait stone crack intelligence extraction and virtual restoration method
  • Portrait stone crack intelligence extraction and virtual restoration method

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Embodiment Construction

[0041] The present invention is described in further detail below in conjunction with accompanying drawing:

[0042] The method for intelligent extraction and virtual repair of portrait stone cracks according to the present invention comprises the following steps:

[0043] 1) Obtain the digital image of the portrait stone, and then preprocess the digital image of the portrait stone;

[0044] 2) Use the crack extraction algorithm based on edit distance to calibrate the crack disease on the preprocessed portrait stone digital image to obtain a mask image, and then obtain the mark map of the crack disease in the portrait stone according to the mask image;

[0045] 3) Using the Criminisi repair algorithm based on the MRF matching criterion to digitally repair the marked image of cracks and diseases in the stelestone obtained in step 2), and generate a digital image of the restored stele, and then display the digital image of the repaired stele.

[0046] The process of preprocessi...

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Abstract

The invention discloses a portrait stone crack intelligence extraction and virtual restoration method. The method comprises the following steps of 1) acquiring a digital image of a portrait stone and preprocessing the digital image of the portrait stone; 2) for the preprocessed digital image of the portrait stone, using a crack extraction algorithm based on an editing distance to carry out crack disease calibration so as to acquire a mask image, and then acquiring a labeled graph of a crack disease in the portrait stone according to the mask image; 3) using a Criminisi restoration algorithm based on a MRF matching criterion to carry out digital restoration on the digital image of the portrait stone according to the labeled graph of the crack disease in the portrait stone which is acquired from the step 2), generating the restored digital image of the portrait stone and then displaying the restored digital image of the portrait stone. The method can be used to satisfy the restoration of the digital image of the portrait stone.

Description

technical field [0001] The invention belongs to the field of digital image processing, and relates to an intelligent extraction and virtual restoration method of cracks in portrait stones. Background technique [0002] Pictorial stones are a kind of ancient murals, and they are mainly architectural stones for carving portraits on buildings such as catacombs, cemetery ancestral halls, tombs and temples in the Han Dynasty. They are not only the carrier for researching and inheriting and carrying forward the traditional stone carving art of our country, but also precious materials for the research of history, politics, military affairs and art. Different from paper documents, portrait stone documents are solitary and will not be regenerated once damaged. However, currently insufficient attention is paid to portrait stone documents. In addition, the complexity of the natural environment around the portrait stone, the immaturity of scientific and technological protection methods,...

Claims

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Application Information

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IPC IPC(8): G06T3/00G06T5/00
CPCG06T3/0068G06T5/005
Inventor 王慧琴赵娜许君扬吴萌
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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