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7 results for “layout analysis”
Layout Analysis Groundtruth for the RVL-CDIP Dataset
<p>The purpose of this dataset is to develop and evaluate layout analysis techniques. More specifically it is focused on the classification of indiviual words and the detection of semantic regions described by boxes.</p>
English corpus from UniLeipzig, for keyboard layout analysis
<p>An English corpus and basic frequency analysis created from the UniLeipzig collection. Intended use is for keyboard layout analysis and development. The source sentences were selected for being typeable on a standard US ANSI keyboard, and artificially paragraphed in modern block style. Status is "beta". The analysis files may contain errors. The .csv files are known to work in LibreOffice, when imported into a spreadsheet using "tab" as a separator and NO string delimiter (delete the ' or " in the dropdown).</p> <p>Source files from https://wortschatz.uni-leipzig.de/en/download/English , their requested citation is </p> <p>D. Goldhahn, T. Eckart & U. Quasthoff: Building Large Monolingual Dictionaries at the Leipzig Corpora Collection: From 100 to 200 Languages.<br>In: <em>Proceedings of the 8th International Language Resources and Evaluation (LREC'12), 2012</em></p>
Dataset for Logical-layout analysis on French historical newspapers
<p><strong>Dataset for Logical-layout analysis on French historical newspapers</strong></p> <p>This dataset is intended for training and testing Logical Layout Analysis and recognition system on French historical documents published between 1900 and 1950. The original data is part of the "<a href="https://gallica.bnf.fr/services/engine/search/sru?operation=searchRetrieve&exactSearch=false&version=1.2&query=%28colnum%20adj%20%22Appartient%20%C3%A0%20l%27ensemble%20documentaire%20:%20FrancComt1%22%29">Fond régional: Franche-Comté</a>", which is curated by <a href="https://gallica.bnf.fr/accueil/fr/content/accueil-fr?mode=desktop">Gallica</a>, the digital portal of the Bibliothèque Nationale de France (BnF). This dataset has the following structure:</p> <p>├── train<br> ├── 1c<br> ├── cb32836282t<br> ├── cb32836282t.xml<br> ├── bpt6k112325g<br> ├── bpt6k112325g.xml<br> ├── truelabels_block.csv<br> ├── truelabels_line.csv<br> ├── …<br> ├── …<br> ├── 2c<br> ├── 3c+<br> └── test<br> ├── 1c<br> ├── 2c<br> └── 3c+</p> <p>The dataset is divided into a train and a test set. The train and test datasets have been designed to cover as much as possible the various possible layouts that exist in the "Fond régional: Franche-Comté" dataset. To do so, we have divided them into three layout types:<br> • <strong>1c</strong>: documents where the text is displayed in one column, as in books;<br> • <strong>2c</strong>: documents where the text is displayed into two columns;<br> • <strong>3c+</strong>: documents where there are at least 3 columns of text, as in newspapers.</p> <p>Each of the 1c, 2c, and 3c+ folder contains subfolders prefixed by ‘cb’, which contain a collection of documents. For instance, « cb32836282t » is the identifier used in Gallica for « Le Petit écho du 21e Régiment d'infanterie », a French military periodical published during WWI. An XML file with the same name, for instance «cb32836282t.xml », contains metadata about the collection, such as its title, publisher, creator, number of issues, etc. This XML file serves only to describe the collection, and is not to be used for Logical-Layout analysis.</p> <p>The issues in each collection can be found in the subfolders prefixed with « bpt ». For instance, « bpt6k112325g » is the identifier used in Gallica for an issue published in September 1917 of « Le Petit écho du 21e Régiment d'infanterie ». The information about each issue is given in three files, which are described below:</p> <p><strong>1-bptXXXXXXXXXX.xml </strong><br> The original data, as collected from Gallica. The most important tags of this document and their values are described below:<br> • <strong>oai</strong>: metadata about the document, such as its author, title, publisher, original publication date, number of issues, …<br> • <strong>image_url</strong>: the url to the document’s scan (in high resolution)<br> • <strong>pagination</strong>: a description of each page in the document (size of the page, if it contains a table of content or not, …)<br> • <strong>num_pages</strong>: the total number of pages in the document<br> • <strong>ocr</strong>: the OCR representation of the document in the XML ALTO format</p> <p>The XML ALTO format provides the text content and physical layout of documents in the following manner. Lines of text are contained in TextLine tags, which in their turn contain String tags for words and SP tags for spaces. TextLine tags are grouped into blocks in TextBlock tags. Sometimes, TextBlock tags are also grouped into ComposedBlock tags. TextBlock and TextLine tags have the following attributes:<br> • <strong>Id</strong> : the tag’s identifier<br> • <strong>Height</strong>, <strong>Width</strong> : the text height and width<br> • <strong>Vpos</strong> : the vertical position of the text on the page. The higher the value, the lower the word is on the page<br> • <strong>Hpos</strong> : the horizontal position of the text on the page. The higher the value, the further on the right the text is on the page<br> • <strong>Language</strong> : the language of the text (only for TextBlock tags).</p> <p>Among the attributes listed above, some TextBlock tags also have a Type attribute. This attribute contains logical labels of the lines in the block. In this dataset it appears most often for tables or advertisements. Overall, TextBlock tags that have a Type attribute are rare in this dataset (about 4 % only).</p> <p><strong>Note</strong>: The original scan of every document is accessible on the Gallica website, using the URL https://gallica.bnf.fr/ark:/12148/<IDENTIFIER>, where <IDENTIFIER> should be replaced by the id of the document (e.g.: bpt6k112325g) or the collection (e.g.: cb32836282t).</p> <p><strong>2-truelabels_block.csv </strong><br> A CSV file where each line corresponds to a TextBlock tag from the file bptXXXXXXXXXX.xml. This CSV file contains the following columns:<br> • <strong>page</strong>: the page on which the TextBlock tag is located<br> • <strong>block_id</strong>: the id of the TextBlock tag<br> • <strong>first_last_line</strong>: the text content of the first and last TextLine tags inside this TextBlock tag<br> • <strong>classes</strong>: the logical label(s) associated with this TextBlock tag</p> <p>The possible values in the column classes are : Text, Title, Header and Other.</p> <p><strong>3-truelabels_line.csv </strong><br> A CSV file where each line corresponds to a TextLine tag from the file bptXXXXXXXXXX.xml. This CSV file contains the following columns:<br> • <strong>page</strong>: the page where the TextLine tag is located<br> • <strong>block_id</strong>: the id of the TextBlock tag that contains this TextLine tag<br> • <strong>line_id</strong>: the id of this TextLine tag<br> • <strong>text_line</strong>: the text content of this TextLine tag<br> • <strong>classes</strong>: the logical label(s) associated with this TextLine tag</p> <p>The possible values in the column classes are : Text, Firstline, Title, Header and Other. Firstline indicates the « first line » of a paragraph.<br> </p>
Oficio de Hipotecas de Girona. A dataset of Spanish notarial deeds (18th Century) for Handwritten Text Recognition and Layout Analysis of historical documents.
<p>This dataset is a subset of 596 documents from the <em>Registre d'Hipoteques de Girona</em> of 1769 collection, guarded by the <a href="http://xac.gencat.cat/ca/llista_arxius_comarcals/girones/"><em>Arxiu Històric de Girona</em></a>. This collection, is composed by hundreds of thousands of notarial deeds from the XVIII-XIX century (1768-1862). Sales, redemption of censuses, inheritance and matrimonial chapters are among the most common documentary typologies in the collection.</p> <p>This dataset is composed of more than 23700 text lines written by a single hand, covering more that 50 different topics (documentary typologies) and a vocabulary of more than 2400 different words. The documents are transcribed using the so-called diplomatic criteria. Additionally, transcripts were tagged with <br> extra enriching/complementary information (e.g. expansion of the abbreviations, hyphen marks, etc.). Along with the transcripts the layout of the document is detected and recorded. Pages have been labeled using six different layout regions.</p> <p>The images along with their respective ground-truth was compiled in PAGE compliant XML format<br> by the <a href="http://www2.udg.edu/tabid/11296/Default.aspx"><em>Centre de Recerca d'Història Rural</em></a> and the HTR group of the <a href="https://www.prhlt.upv.es">Pattern Recognition and Human Language Technologies Research Center</a>.</p>
Pecha Layout Analysis Annotations in Transkibus Format
<p>Training data for <em>Layout Analysis</em> of Tibetan woodblock prints. This version of dataset contain images randomly picked images from LOC scans of the <a href="https://www.tbrc.org/#!rid=W4CZ5369">derge kangyur</a>.</p> <p><strong>Training data contains:</strong></p> <ol> <li>Text region annotations</li> <li>Line annotations</li> </ol> <p>Note: The annotations scheme is based on <a href="https://transkribus.eu/Transkribus/">Transkribus</a><strong>. </strong>Importing the annotations is same as importing an exported Transkribus format documents.</p>
Vorau Abbey library Cod. 253 dataset for Document Layout Analysis
<p>VORAU-253 is a music manuscript referred to as Cod. 253 of the Vorau Abbey library, which was provided by the Austrian Academy of Sciences. It is written in German Gothic notation and dated around year 1450.</p> <p>This manuscript is interesting because of the complexity of its layout, where staff, text and decorations are intertwined to<br> compose the structure of the document.</p> <p>This database is a subset of 228 pages of the archive, using 128 randomly selected pages for training/validation and 100 for test.</p> <p>The database was manually annotated into the following three layout regions:</p> <p>* staff: represents the regions that contains a set of horizontal lines and spaces where each one represent a different musical pitch. This region type does not contain text lines. Hence, no baselines.</p> <p>* lyrics: are the words that are sung appear below their corresponding staff, and other text in the document. In all cases, text to be sung and the other text are assigned to different layout regions under the lyrics label.</p> <p>* drop-capital: is a decorated letter that might appear at the beginning of a word or text line. As it is a single big letter, it contain no text lines nor baselines.</p> <p>On average each page contains 12.5 [7,23] text lines distributed over an average of 10.5[7,15] ``lyrics'' regions. Moreover, each page contains 22.3[14,28] layout regions on average.</p>
Document Layout Analysis - David Hume's History of England
<p>A fine-grained text region dataset for document layout analysis, freely available for research, featuring over 2400 annotated pages from four editions of David Hume’s History of England.</p>
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