OCR Optical Character Recognition 70年史 1957-2026。OCR-A (1968 ANSI 機械読取専用フォント)+OCR-B (1968 ISO 1073-2 European)・David Shepard Intelligent Machines IMR (1951 First OCR・現Solutron Inc)・Reader's Digest IBM 1965 (Subscription Card OCR)・USPS Sorting OCR (1965 米郵便)・Kurzweil Reading Machine (1976 Ray Kurzweil・Visually Impaired・初Omnifont OCR)→Xerox 1980年・Calera Systems・Caere OmniPage (1990s 商用Mac/Win)→Nuance OmniPage→Kofax 2017→Tungsten Automation 2024・ABBYY FineReader (1989 Russia David Yang・99%+精度・OCR業界Top・Multi-language 200+)・ABBYY Cloud OCR API (2014)・IRIS Readiris (Belgium 1987)・ScanSoft+Caere・Adobe Acrobat Pro OCR (1996 Built-in)・PDF24+iLovePDF (Web Free OCR)・Tesseract (1985 HP Labs→2005 OSS化Apache→Google 2006以降maintenance・LSTM追加 2018→Tesseract 5.0 2021・Tesseract 5.4 2024)・GOCR+Cuneiform+OCRopus FOSS・Microsoft Office OneNote OCR (2003-)+Office Lens (2014 iOS Mobile)・Apple iOS Live Text (2021 iOS 15・Visual Lookup→2024年 Visual Intelligence iPhone 16)・Google Lens (2017 Photo→Real Translate)+Google Cloud Vision API・AWS Textract (2019)・Azure Form Recognizer (2019→Document Intelligence 2023)・PaddleOCR (Baidu FOSS Multi-language)・EasyOCR (FOSS Python)・Surya (2024 FOSS Lite・Mac M-series)・GPT-4V+Claude 3.5+Gemini Vision (2024 LLM Native OCR・複雑Layout Diagram理解 高精度)・¥0 OSS-¥¥¥¥¥/Year 2026 LLM Vision OCR Tesseract超え時代。