{"id":104616,"date":"2022-07-07T21:37:10","date_gmt":"2022-07-07T19:37:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-sistemy-raspoznavaniya-teksta-tesseract-5-2"},"modified":"2022-07-07T21:37:10","modified_gmt":"2022-07-07T19:37:10","slug":"reliz-sistemy-raspoznavaniya-teksta-tesseract-5-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/reliz-sistemy-raspoznavaniya-teksta-tesseract-5-2","title":{"rendered":"Sortie du syst\u00e8me de reconnaissance de texte Tesseract 5.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La version du syst\u00e8me de reconnaissance optique de caract\u00e8res Tesseract 5.2 a \u00e9t\u00e9 publi\u00e9e, prenant en charge la reconnaissance des caract\u00e8res UTF-8 et des textes en plus de 100 langues, y compris le russe, le kazakh, le bi\u00e9lorusse et l'ukrainien. Le r\u00e9sultat peut \u00eatre enregistr\u00e9 \u00e0 la fois en texte brut et dans les formats HTML (hOCR), ALTO (XML), PDF et TSV. \u00c0 l'origine, le syst\u00e8me a \u00e9t\u00e9 cr\u00e9\u00e9 entre 1985 et 1995 dans le laboratoire de la soci\u00e9t\u00e9 Hewlett Packard, en 2005, le code a \u00e9t\u00e9 rendu public sous licence Apache et a ensuite \u00e9t\u00e9 d\u00e9velopp\u00e9 avec l'aide d'employ\u00e9s de Google. Les textes sources du projet sont distribu\u00e9s sous la licence Apache 2.0.      <\/p>\n<p> Tesseract inclut un utilitaire en ligne de commande et une biblioth\u00e8que libtesseract pour int\u00e9grer des fonctions de reconnaissance de texte dans d'autres applications. Parmi les interfaces GUI tierces prenant en charge Tesseract, on peut citer gImageReader, VietOCR et YAGF. Deux moteurs de reconnaissance sont propos\u00e9s : un classique, qui reconna\u00eet le texte \u00e0 un niveau d'\u00e9chantillonnage des caract\u00e8res individuels, et un nouveau, bas\u00e9 sur l'utilisation d'un syst\u00e8me d'apprentissage machine avec un r\u00e9seau de neurones r\u00e9current LSTM, optimis\u00e9 pour reconna\u00eetre des lignes enti\u00e8res et permettant d'obtenir une pr\u00e9cision significativement am\u00e9lior\u00e9e. Des mod\u00e8les pr\u00e9-entra\u00een\u00e9s sont publi\u00e9s pour 123 langues. Pour optimiser les performances, des modules utilisant OpenMP et des instructions SIMD AVX2, AVX, AVX512F, NEON ou SSE4.1 sont propos\u00e9s.     <\/p>\n<p>Am\u00e9liorations principales dans Tesseract 5.2 :  <\/p>\n<ul>\n<li class=\"l\"> Des optimisations ont \u00e9t\u00e9 ajout\u00e9es, r\u00e9alis\u00e9es \u00e0 l'aide des instructions Intel AVX512F.\n<li class=\"l\"> Une fonction pour initialiser Tesseract avec un chargement depuis la m\u00e9moire du mod\u00e8le d'apprentissage automatique a \u00e9t\u00e9 r\u00e9alis\u00e9e dans l'API C.\n<li class=\"l\"> Un param\u00e8tre invert_threshold a \u00e9t\u00e9 ajout\u00e9, d\u00e9finissant le niveau d'inversion des lignes de texte. Par d\u00e9faut, la valeur est de 0.7. Pour d\u00e9sactiver l'inversion, il convient de d\u00e9finir la valeur \u00e0 0.\n<li class=\"l\"> Le traitement de documents tr\u00e8s volumineux sur des h\u00f4tes 32 bits a \u00e9t\u00e9 am\u00e9lior\u00e9.\n<li class=\"l\"> La transition de l'utilisation des fonctions std::regex vers std::string a \u00e9t\u00e9 effectu\u00e9e.\n<li class=\"l\"> Les scripts de compilation pour Autotools, CMake et les syst\u00e8mes d'int\u00e9gration continue ont \u00e9t\u00e9 am\u00e9lior\u00e9s.      <\/p>\n<p>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57469\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0440\u0430\u0441\u043f\u043e\u0437\u043d\u0430\u0432\u0430\u043d\u0438\u044f \u0442\u0435\u043a\u0441\u0442\u0430 Tesseract 5.2, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0440\u0430\u0441\u043f\u043e\u0437\u043d\u0430\u0432\u0430\u043d\u0438\u0435 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 UTF-8 \u0438 \u0442\u0435\u043a\u0441\u0442\u043e\u0432 \u043d\u0430 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c 100 \u044f\u0437\u044b\u043a\u0430\u0445, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0440\u0443\u0441\u0441\u043a\u0438\u0439, \u043a\u0430\u0437\u0430\u0445\u0441\u043a\u0438\u0439, \u0431\u0435\u043b\u043e\u0440\u0443\u0441\u0441\u043a\u0438\u0439 \u0438 \u0443\u043a\u0440\u0430\u0438\u043d\u0441\u043a\u0438\u0439. \u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u043c\u043e\u0436\u0435\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u043c \u0442\u0435\u043a\u0441\u0442\u043e\u043c, \u0442\u0430\u043a \u0438 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0430\u0445 HTML (hOCR), ALTO (XML), PDF \u0438 TSV. \u0418\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0431\u044b\u043b\u0430 \u0441\u043e\u0437\u0434\u0430\u043d\u0430 \u0432 1985-1995 \u0433\u043e\u0434\u0430\u0445 \u0432 \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u0438\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Hewlett Packard, \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104616","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0440\u0430\u0441\u043f\u043e\u0437\u043d\u0430\u0432\u0430\u043d\u0438\u044f \u0442\u0435\u043a\u0441\u0442\u0430 Tesseract 5.2, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0439 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