2002 September -- ejk/UF RESEARCH TOPICS Web-Interface Performance DTD Extensibility Imaging...
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Transcript of 2002 September -- ejk/UF RESEARCH TOPICS Web-Interface Performance DTD Extensibility Imaging...
2002 September -- ejk/UF
RESEARCH TOPICS
Web-Interface Performance
DTD Extensibility
Imaging
Distillation
Other topics?
2002 September -- ejk/UF
CONTEXT
Image Only Pilots
• Australian Periodical Publications, 1840-1845
• National Library of New Zealand. Papers Past
Image & Indexing/Tagging Pilot
• University of Florida. Caribbean Newspaper Imaging Project
• University of Florida. Florida Newspaper Project
Image & OCR Pilots
• Lambrakis Press Archives
• ProQuest. Historical Newspapers™
• TIDEN Project : a Nordic Digital Newspaper Library
Olive Software Pilot
• The British Library
2002 September -- ejk/UF
WEB-INTERFACE PERFORMANACE
Primary Purpose:
• Characterize the bias of individuals conducting study
Products:
• How to use ActivePaperTM to Your Advantage
• Integration with CONTENTdm, XPAT 5.0, other
• Alternate deliverable images
• Centralized service – Distributed content – Variable platforms
2002 September -- ejk/UF
DTD EXTENSIBILITY
Primary Purpose:
• Assess the XML against established newspaper uses
Products:
• How to use ActivePaperTM to Your Advantage
• Document the XML as a public DTD
• Establish a maintenance authority
• Provide for extension of the DTD
• Automation for extended tagging
• How to construct a style sheet
• Integration with CONTENTdm, XPAT 5.0, other
• Define issues per the Economic Model
2002 September -- ejk/UF
IMAGING
• Directory Structure and File Naming
• Archival Formats
• Optimized Imaging
2002 September -- ejk/UF
IMAGING: Directory Structure and File Naming
Primary Purpose:
• Recommended practices
Products:
• Methods for dealing with anomalies
• Automated name capture during imaging
2002 September -- ejk/UF
IMAGING: Archival Formats
Primary Purpose:
• Description of file formats & their characteristicsfor archive, distillation, and distribution
Products:
• Preservation metadata
• Anticipate migration
• Schedule & fee structure for inspection & migration
• Strategy for format migrations & emulation
2002 September -- ejk/UF
IMAGING: Optimized Imaging
Primary Purpose:
• Best practices for microfilming and digitizing(quantitative assessments)
• Film reduction ratio
• Evenness of illumination on film
• Film background density
• Quality Index & DPI/PPI
• Skew
• Color-space & Bit-depth
• Image density/black & white points
• Despeckling and Sharpening
• Image restoration methods
2002 September -- ejk/UF
IMAGING: Optimized Imaging
Environments:
• Operating System
• Scanning Hardware
• Lighting and Light Filtration
• Post-processing
• Other?
Other Products:
• Control target for OCR assessment
• Revision: RLG Preservation Microfilming Guidelines
2002 September -- ejk/UF
DISTILLATION
• Document Zoning
• Optical Character Recognition
2002 September -- ejk/UF
DISTILLATION: Document Zoning
Primary Purpose:
• Confirm assumptions re: document zoning
• OCR has difficulty processing large letters
• Smaller zone yield more accurate text
Products:
• Establish reference to the . . .
• PDF (fully scaled)
• TIFF
• Other derivative file formats (fully scaled)
2002 September -- ejk/UF
DISTILLATION: OCR
Primary Purpose:
• Provide quantitative OCR accuracy information
Areas of Investigation:
• Distillation Source Images
• Language and Fonts
• Column & Line Density
• Relative Density/Contrast
• Text Curvature and Other Defects
2002 September -- ejk/UF
DISTILLATION: OCR
Primary Purpose:
• Predict accuracy contingent upon source document(printing technologies & filming standards)
Test-Set Characterization:
• Source type (newspaper or microfilm)
• Production date (technologies & standards used) Additional Products:
• Best practices
• Accuracy : Cost – Matrix
Distillation Source Images
2002 September -- ejk/UF
DISTILLATION: OCR
Language and Fonts
Primary Purpose:
• Demonstrate ability to distill languages, character sets & fonts
Test-Set Characterization:
• Language & character set groups
• Font face & font size groups
• Regional variant spellings Additional Products:
• Olive Software Speaks Your Language
• How Olive Software Learns Your Lingo
• Stylized text recognition & distillation guide
2002 September -- ejk/UF
DISTILLATION: OCR
Column & Line Density
Primary Purpose:
• Demonstrate ability to distill compact text
Test-Set Characterization:
• Pre-1900 newspapers
• Advertisement pages
• Pages predominantly 8 pt. type or less
• Pages with less than 1 mm space between lines
• Pages with characters spaced at or below ⅓ mm
2002 September -- ejk/UF
DISTILLATION: OCR
Relative Density/Contrast
Primary Purpose:
• Investigate low and uneven contrast materials
Test-Set Characterization:
• Low contrast pages
• Pages with low contrast zones
• Printing, Filming, & Age/Storage Defects Additional Products:
• Best practices
• Accuracy : Cost – Matrix
• Don’t forget to buy the Life Insurance
2002 September -- ejk/UF
DISTILLATION: OCR
Text Curvature and Other Defects
Primary Purpose:
• Benchmark current capability to distill curved text & other defects of printing or filming
Test-Set Characterization:
• Curved text zones
• Broken character zones
• Broken line zones
• Garbage elements (stains, etc.) Additional Products:
• (Additional automatic image correction processes)