readability of scanned books in digital libraries · readability of scanned books in digital...
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Readability ofScanned Books in Digital Libraries
Alex Quinn, Chang Hu, Takeshi Arisaka, Anne Rose, Ben BedersonUniversity of Maryland, College ParkHuman Computer Interaction Lab
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Data based on data pulled in March 2008 using Google AnalyticsICD
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Together, 800x600 and 1024x768 account for 55% of ICDL visitors
![Page 5: Readability of Scanned Books in Digital Libraries · Readability of Scanned Books in Digital Libraries Alex Quinn, Chang Hu, Takeshi Arisaka, Anne Rose, Ben Bederson University of](https://reader030.vdocuments.site/reader030/viewer/2022040910/5e831def1be17b7cdc733d46/html5/thumbnails/5.jpg)
Data based on data pulled in March 2008 using Google AnalyticsICD
L vi
sito
rs’s
cree
n re
solu
tions
1024x768
800x600
1280
x768
1280x768
1280x768
1440x900
1280x1024
1680x10501300x1300
Other
Together, 800x600 and 1024x768 account for 55% of ICDL visitors
800x600 (mono)1200x900 (color)
![Page 6: Readability of Scanned Books in Digital Libraries · Readability of Scanned Books in Digital Libraries Alex Quinn, Chang Hu, Takeshi Arisaka, Anne Rose, Ben Bederson University of](https://reader030.vdocuments.site/reader030/viewer/2022040910/5e831def1be17b7cdc733d46/html5/thumbnails/6.jpg)
DemosIf network connection working:
ClearText demoPopoutText demoSkip backup slides
Else:Proceed to backup slides
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Study
ExperimentRead ½ book with…
Physical bookStandardClearTextPopoutText
Same authorSimilar style27 adults
EvaluateRate (after each)
Easy to seeCan read quicklyEasy to manipulateKeeps author’s intentAttractive
Rank (at end)same
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Surprises
61% preferred ≥1 of the new methods over the physical book for ≥1 measure
37% for ease of manipulation33% for legibility
Cited inherent limitations in booksPages flop aroundInconvenient “zoom” capability
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Subjective ratings
Error bars show 5% confidence intervalsAll five measures had main effects with p≤0.01 in RM-ANOVA
Easy tosee
Can readquickly
Easy toManipulate
Preservesauthor’screativeintent
AttractiveBad
Good
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Practical Issues
RightsTranscriptionLimitations of image processing
SlowRequires some human correction
Very difficult text examples
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International Children’s Digital Librarywww.childrenslibrary.org
Human Computer Interaction LabUniversity of Maryland, College Park
www.cs.umd.edu/hcil
Alex [email protected]