Readability of scanned books in digital libraries

ABSTRACT

Displaying scanned book pages in a web browser is difficult, due to an array of characteristics of the common user's configuration that compound to yield text that is degraded and illegibly small. For books which contain only text, this can often be solved by using OCR or manual transcription to extract and present the text alone, or by magnifying the page and presenting it in a scrolling panel. Books with rich illustrations, especially children's picture books, present a greater challenge because their enjoyment is dependent on reading the text in the context of the full page with its illustrations. We have created two novel prototypes for solving this problem by magnifying just the text, without magnifying the entire page. We present the results of a user study of these techniques. Users found our prototypes to be more effective than the dominant interface type for reading this kind of material and, in some cases, even preferable to the physical book itself.

REFERENCES

• 1: Adobe Reader desktop application home page. www.adobe.com/products/acrobat. September 1, 2007.
• 2: Adobe Reader Mobile home page. September 1, 2007. www.adobe.com/products/acrobat/acrrmobiledevices.html
• 3: Baldwin, T. S. and Baily, L. J. 1971. Readability of technical training materials presented on microfiche versus offset copy. J. Appl. Psychol. 55, 37--41.
• 4: Michael L. Bernard , Barbara S. Chaparro , Melissa M. Mills , Charles G. Halcomb, Comparing the effects of text size and format on the readibility of computer-displayed Times New Roman and Arial text, International Journal of Human-Computer Studies, v.59 n.6, p.823-835, December 2003 [doi>10.1016/S1071-5819(03)00121-6]
• 5: Bernard, M., Chaparro, B., Mills, M., Halcomb, C. Examining children's reading performance and preference for different computer-displayed text. Behaviour & Information Technology, 2002, Vol. 21, No. 2, 87--96. DOI=http://dx.doi.org/10.1080/01449290210146737
• 6: Betrisey, C., Blinn, J.F., Dresevic, B., Hill, B., Hitchcock, G., Keely, B., Mitchell, D.P., Platt, J.C., Whitted, T.. Displaced Filtering for Patterned Displays, Proc. Society for Information Display Symposium, pp. 296--299, (2000). DOI=http://dx.doi.org/10.1889/1.1832941
• 7: Staffan Björk , Johan Redström, An alternative to scrollbars on small screens, CHI '99 extended abstracts on Human factors in computing systems, May 15-20, 1999, Pittsburgh, Pennsylvania [doi>10.1145/632716.632908]
• 8: Dan Boyarski , Christine Neuwirth , Jodi Forlizzi , Susan Harkness Regli, A study of fonts designed for screen display, Proceedings of the SIGCHI conference on Human factors in computing systems, p.87-94, April 18-23, 1998, Los Angeles, California, United States [doi>10.1145/274644.274658]
• 9: Andy Cockburn , Carl Gutwin , Jason Alexander, Faster document navigation with space-filling thumbnails, Proceedings of the SIGCHI conference on Human Factors in computing systems, April 22-27, 2006, Montréal, Québec, Canada [doi>10.1145/1124772.1124774]
• 10: Tammara T. A. Combs , Benjamin B. Bederson, Does zooming improve image browsing?, Proceedings of the fourth ACM conference on Digital libraries, p.130-137, August 11-14, 1999, Berkeley, California, United States [doi>10.1145/313238.313286]
• 11: Dillon, A. 1992. Reading from paper versus screens: a critical review of the empirical literature. Ergonomics, 35(10), 1297--1326. DOI=10.1080/00140139208967394
• 12: Dillon, A. (1999) TIME - A multi-level framework for the design and evaluation of digital libraries. International Journal of Digital Libraries 2(2/3), 170--177.
• 13: Andrew Dillon, Designing usable electronic text: ergonomic aspects of information usage, Taylor & Francis, Inc., Bristol, PA, 1994
• 14: Dyson, M.C. How physical text layout affects reading from screen. Behaviour & Information Technology, Volume 23, Number 6, November-December 2004. Taylor & Francis (2004), 377--393. DOI=http://dx.doi.org/10.1080/01449290410001715714
• 15: G. W. Furnas, Generalized fisheye views, Proceedings of the SIGCHI conference on Human factors in computing systems, p.16-23, April 13-17, 1986, Boston, Massachusetts, United States
• 16: Gibson Research Corporation. www.grc.com/ctwhat.htm, accessed 3/1/2007.
• 17: Highslide JS thumbnail image viewer. http://vikjavev.no/highslide/, accessed 9/1/2007.
• 18: Kasper Hornbæk , Erik Frøkjær, Reading of electronic documents: the usability of linear, fisheye, and overview+detail interfaces, Proceedings of the SIGCHI conference on Human factors in computing systems, p.293-300, March 2001, Seattle, Washington, United States [doi>10.1145/365024.365118]
• 19: Kasper Hornbæk , Erik Frøkjær, Reading patterns and usability in visualizations of electronic documents, ACM Transactions on Computer-Human Interaction (TOCHI), v.10 n.2, p.119-149, June 2003 [doi>10.1145/772047.772050]
• 20: Hourcade, J. P., Bederson, B., Druin, A., Rose, A., Farber, A., & Takayama, Y. The International Children's Digital Library: Viewing Digital Books Online, in Proceedings of the International Workshop 'Interaction Design and Children' (Eindhoven, The Netherlands, August 2002), 125--129.
• 21: Huseinovic, Andrea Petrlik. 2001. The Blue Sky. Kaamir Promet (Croatia, 2001).
• 22: Huseinovic, Andrea Petrlik. 2003. Ciconia Ciconia. Kaamir Promet (Croatia, 2003).
• 23: Steve Jones , Matt Jones , Gary Marsden , Dynal Patel , Andy Cockburn, An evaluation of integrated zooming and scrolling on small screens, International Journal of Human-Computer Studies, v.63 n.3, p.271-303, September 2005 [doi>10.1016/j.ijhcs.2005.03.005]
• 24: Nancy Kaplan , Yoram Chisik, Reading alone together: creating sociable digital library books, Proceedings of the 2005 conference on Interaction design and children, p.88-94, June 08-10, 2005, Boulder, Colorado [doi>10.1145/1109540.1109552]
• 25: Jari Laarni, Searching for optimal methods of presenting dynamic text on different types of screens, Proceedings of the second Nordic conference on Human-computer interaction, October 19-23, 2002, Aarhus, Denmark [doi>10.1145/572020.572050]
• 26: Hao Liu , Xing Xie , Wei-Ying Ma , Hong-Jiang Zhang, Automatic browsing of large pictures on mobile devices, Proceedings of the eleventh ACM international conference on Multimedia, November 02-08, 2003, Berkeley, CA, USA [doi>10.1145/957013.957045]
• 27: Carol Bergfeld Mills , Linda J. Weldon, Reading text from computer screens, ACM Computing Surveys (CSUR), v.19 n.4, p.329-357, Dec. 1987 [doi>10.1145/45075.46162]
• 28: D. J. Oborne , D. Holton, Reading from screen versus paper: there is no difference, International Journal of Man-Machine Studies, v.28 n.1, p.1-9, January 1988 [doi>10.1016/S0020-7373(88)80049-X]
• 29: Catherine Plaisant , David Carr , Ben Shneiderman, Image-Browser Taxonomy and Guidelines for Designers, IEEE Software, v.12 n.2, p.21-32, March 1995 [doi>10.1109/52.368260]
• 30: George G. Robertson , Jock D. Mackinlay, The document lens, Proceedings of the 6th annual ACM symposium on User interface software and technology, p.101-108, December 1993, Atlanta, Georgia, United States [doi>10.1145/168642.168652]
• 31: Ben Shneiderman , Catherine Plaisant, Designing the User Interface: Strategies for Effective Human-Computer Interaction (4th Edition), Pearson Addison Wesley, 2004
• 32: Bill N. Schilit , Gene Golovchinsky , Morgan N. Price, Beyond paper: supporting active reading with free form digital ink annotations, Proceedings of the SIGCHI conference on Human factors in computing systems, p.249-256, April 18-23, 1998, Los Angeles, California, United States [doi>10.1145/274644.274680]
• 33: SubLCD. http://www.oyhus.no/SubLCD.html
• 34: Thomas S. Tullis , Jennifer L. Boynton , Harry Hersh, Readability of fonts in the windows environment, Conference companion on Human factors in computing systems, p.127-128, May 07-11, 1995, Denver, Colorado, United States [doi>10.1145/223355.223463]
• 35: University of Texas home page. Screen Resolution Statistics. Accessed September 1, 2007. www.utexas.edu/teamweb/reports/screen_resolution/index.php
• 36: W3Schools. Browser Display Statistics. Accessed 9/1/2007. www.w3schools.com/browsers/browsers_display.asp
• 37: J. Waycott , A. Kukulska-Hulme, Students' experiences with PDAs for reading course materials, Personal and Ubiquitous Computing, v.7 n.1, p.30-43, May 2003 [doi>10.1007/s00779-002-0211-x]
• 38: Ka-Ping Yee, Peephole displays: pen interaction on spatially aware handheld computers, Proceedings of the SIGCHI conference on Human factors in computing systems, April 05-10, 2003, Ft. Lauderdale, Florida, USA [doi>10.1145/642611.642613]
• 39: Ziefle, M. Effects of display resolution on visual performance. Human Factors. Volume 40, number 4. Human Factors and Ergonomics Society, Santa Monica, CA (1998), 554--568. DOI=10.1518/001872098779649355

INDEX TERMS

Primary Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)

General Terms:
Design, Experimentation, Human Factors

Keywords:
digital libraries, document navigation, online document display, readability, scanned books, web browsers