High-efficiency method and system for sensitive image detection

Abstract

The invention discloses a high-efficiency method and a high-efficiency system for sensitive image detection. The method comprises that sensitive image samples and normal image samples are collected to establish a training set and to extract interest points, the interest points are filtered in combination with a skin color model, the interest points unrelated to skin colors are taken out and the interest points related to the skin colors are kept, local invariant characteristics at the interest points are extracted and are clustered, a data-driven tree pyramid model is established, and the multi-resolution histogram characteristics of each image are extracted on the basis; the similarity of any two images is calculated by using pyramid matching algorithm and a kernel function matrix is formed; and the obtained kernel function matrix is used to train a support vector machine classifier to obtain the parameters of the classifier and a new image sample is detected to determine whether the new image sample is a sensitive image. The invention can conduct high-efficiency detection and filtration to the sensitive images on the internet to enable the vast juvenile to enjoy the convenience brought by the internet and to protect the vast juvenile against the harmfulness of bad information.

Description

technical field [0001] The invention relates to the field of computer application technology, in particular to a sensitive image detection method and system thereof. Background technique [0002] With the rapid development of the Internet and multimedia technology, people can now obtain all kinds of information they need without leaving home: listening to music, watching movies, chatting, shopping... However, in bringing people a variety of At the same time as it is convenient, various sensitive information has also begun to flood the Internet, and the Internet has become a hotbed for the dissemination of pornographic information. According to statistics, there are currently more than 370 million pornographic websites on the Internet, and about 20,000 new pornographic photos flow into the Internet every day. Among the majority of Internet users, young Internet users have poor self-control ability. Among juvenile delinquents, nearly 80% of them have been tempted by bad infor...

AI Technical Summary

Problems solved by technology

[0003] In the field of sensitive information filtering, it is relatively easy to filter textual content. The current algorithm filtering efficiency can basically reach more than 99%, but it is more difficult to filter images, and the filtering efficiency generally hovers below 90%.

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