PorTEXTO: A European Portuguese Benchmark for Visual Text Extraction

• URL: http://arxiv.org/abs/2606.19096v1
• Date: Wed, 17 Jun 2026 14:06:26 GMT
• Title: PorTEXTO: A European Portuguese Benchmark for Visual Text Extraction
• Abstract summary: European Portuguese (pt-PT) is largely absent from OCR benchmarks, which skew toward high-resource languages.<n>This work addresses modern OCR applications, introducing Por TEXTO, the first benchmark for contemporary and culturally relevant pt-PT visual text extraction.<n>We observe a sharp performance drop from synthetic to real world samples in most models, and find that, currently, specialized multilingual data is a better driver for pt-PT performance than model size or resolution budget.
• Score: 7.442299103783346
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: European Portuguese (pt-PT) is largely absent from OCR benchmarks, which skew toward high-resource languages. The few benchmarks that cover pt-PT focus on historical artifacts and literature. This work addresses modern OCR applications, introducing PorTEXTO, the first benchmark for contemporary and culturally relevant pt-PT visual text extraction. To ascertain quality, we employ an annotation pipeline combining transcriptions from a frontier LVLM with exhaustive review by native speakers. We observe a sharp performance drop from synthetic to real world samples in most models, and find that, currently, specialized multilingual data is a better driver for pt-PT performance than model size or resolution budget, motivating the release of open pt-PT OCR resources.

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