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ALTO: Technical Metadata for optical Character Recognition 

01-14-2021 12:59 PM

An XML schema that details technical metadata for describing the layout and content of physical text resources. It most commonly serves as an extension schema used withing the administration section of the Metadata Encoding and Transmission Schema however ALTO (Analyzed Layout and Text Object) can be used alone.

Alternate Name / Title: ALTO (Analyzed Layout and Text Object): Technical Metadata for Optical Character Recognition

URL for Resource:

Standards Creating / Publishing Body: Library of Congress

Date of Latest Revision: 2022

Current Version (Color, Name, Number): 4.3

Topics: Metadata, Structured Data

Associated SERP Framework Element: Open Standard / Neutral Formats

Related Standards: ALTO is often used within the administrative section of the Metadata Encoding and Transmission Schema (METS).

Date Resource Added/Modified: March 12, 2018


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