Ancient tomb inscription character recognition method based on hyperspectral remote sensing technology

Abstract

The invention discloses an ancient tomb inscription character recognition method based on a hyperspectral remote sensing technology, and the method comprises the steps: 1, sequentially obtaining the image data of an ancient tomb inscription through a hyperspectral instrument, and obtaining a plurality of hyperspectral images in each region; 2, preprocessing the hyperspectral image of the inscription; 3, selecting a spectral band to perform spectral processing on the hyperspectral image; 4, performing image enhancement on the inscription image after spectral processing; and 5, performing character recognition on the inscription image after image enhancement, performing similarity comparison with the inscription image to be recognized by utilizing a character image library, and outputting acharacter recognition result according to the similarity. According to the method, the characters of the inscription inscriptions in different environments can be recognized, good adaptability is achieved, the characters which cannot be recognized by naked eyes can be extracted, noise is smoothed while a picture containing the characters is enhanced, and the reliability, practicability and feasibility of the character recognition effect are good.

Description

technical field [0001] The invention relates to the field of character recognition for identification and protection of cultural relics, in particular to a method for character recognition of ancient tomb inscriptions based on hyperspectral remote sensing technology. Background technique [0002] China is an ancient civilization with a long history and has a large number of relics. How to effectively protect these relics is a major challenge for researchers today. As an important carrier of ancient text information, ancient tombstone inscriptions are a type of cultural relic with extremely high historical and artistic value. The common ways of degradation of ancient tombstones include various irreversible damages such as weathering and erosion, hollowing of cracks, and biological diseases, which may cause permanent loss of cultural relics information, and pose a great threat to the integrity of textual information of ancient tombstones and the value of cultural relics. [...

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Problems solved by technology

[0006] At present, hyperspectral remote sensing plays a certain role in the protection of cultural relics, but the research is limited to the part of color painting, especially in the environment of ancient tombs, the processing effect on inscriptions is often unsatisfactory

Moreover, the efficiency of using hyperspectral imaging technology to analyze cultural relics in China is low, and each time the imaging area is small, only a part of the cultural relic can be analyzed. Therefore, how to improve the efficiency of hyperspectral imaging technology in analyzing calligraphy and painting cultural relics will become a major research direction in the future.

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