Oracle carved text detection method combining local prior features and deep convolution features

Abstract

The invention discloses an oracle carved text detection method combining local prior features and deep convolution features, and belongs to the crossing field of digital image processing and ancient text information processing. The method comprises the following steps: firstly, inputting a to-be-processed oracle carved image I, converting the color space of the to-be-processed oracle carved imageI from RGB to HSV, binarizing a V component of the to-be-processed oracle carved image I by adopting a maximum between-cluster variance method, and obtaining a rough denoising result of the image I byutilizing a multi-condition connected region filling algorithm; secondly, analyzing deep convolution features of the image I through a feature extraction sub-network containing six groups of convolution layers; secondly, selecting a region of interest by utilizing the region suggestion sub-network containing three groups of convolution layers, and calculating a score of each region of interest; and finally, determining an area of the oracle characters by using the feature dimension reduction sub-network and the area classification sub-network, and removing overlapped candidate boxes by usinga non-maximum suppression algorithm to generate a result image with a box selection result.

Description

technical field [0001] The present invention relates to the intersection field of digital image processing and ancient text information processing, especially a kind of can effectively resist the interference of dot noise, flaky markings and inherent texture on tortoise shell and animal bone, high accuracy, good robustness, processing A fast and self-adaptive oracle bone inscription text detection method that combines local prior features and deep convolution features. Background technique [0002] Oracle bone inscriptions are written in the late Shang Dynasty using tortoise shells and animal bones for recording and divination. As the earliest mature writing system discovered in my country so far, it has extremely important protection value, research value and lofty symbolic significance. Oracle bone inscriptions are not only the earliest traceable source of Chinese language, culture, and history, but also the source of Chinese characters and the root of Chinese excellent t...

AI Technical Summary

Problems solved by technology

However, the above two methods can only locate the location of the rubbings in the oracle bone rubbing image, but cannot achieve accurate extraction of oracle bone characters

[0006] To sum up, there is currently no one that can effectively resist point noise, patchy markings and inherent texture interference on tortoise shells and animal bones. It has high accuracy, good robustness, fast processing speed, and self-adaptive ability. Oracle bone script automatic detection method

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