TECHNICAL FIELD

This generally relates to document inspection technologies.

BACKGROUND

Documents are often relied upon in commerce to authenticate the bearer of the document, or as proof that the underlying document itself is what it purports to be. Similarly, governments often require authentication for various tasks, such as ensuring proper operation of a vehicle or to pass through a physical security perimeter. There is often a struggle between those introducing documents as they seek to employ technology to deter illicit efforts, and those seeking to catch up to the newly-introduced technology in order to secure illicit benefits. Increasing the technological sophistication of the document producers, and the techniques by which documents are inspected can give those relying on authenticity increased confidence.

SUMMARY

In one sense, documents may be inspected a computing device may perform texture analysis on a portion of a first image that represents a first document and on a portion of a second image that represents a second document. Based on performing texture analysis on the portion of the first image that represents the first document, the computing device may generate a first feature vector that represents the portion of the first image that represents the first document. Based on performing texture analysis on the portion of the second image that represents the second document, the computing device may generate, a second feature vector that represents the portion of the second image that represents the second document. The computing device then compares the first feature vector to the second feature vector. Based on comparing the first feature vector to the second feature vector, the computing device determines a confidence score that reflects a likelihood that the first document and the second document are the same document. The computing device then compares the confidence score to a confidence score threshold. Based on comparing the confidence score to the confidence score threshold, the computing device then determines whether the confidence score satisfies the confidence score threshold. Based on determining whether the confidence score satisfies the confidence score threshold, the computing device determines whether the first document and the second document are the same document.

The details of one or more aspects are set forth in the accompanying drawings and the description below. Other features, objects, and advantages will be apparent from the description and drawings, and from the claims.

