NDLI: The Smart Bookshelf: A Study of Camera Projector Scene Augmentation of an Everyday Environment

Content Provider	IEEE Xplore Digital Library
Author	Crasto, D. Kale, A. Jaynes, C.
Copyright Year	2005
Description	Author affiliation: Dept. of Comput. Sci., Kentucky Univ., Lexington, KY (Crasto, D.; Kale, A.; Jaynes, C.)
Abstract	Recent research in projector-camera systems has overcome many of the obstacles to deploying and using intelligent displays for a wide range of applications. In parallel with these developments, projector costs continue to decline with corresponding increase in resolution, brightness and contrast ratio. In light of this trend, we are exploring the unique capabilities that camera-projector systems can offer to intelligent environments and ubiqutous computing. Our initial step towards environments that are intelligently augmented by projector-camera devices, is a smart bookshelf application. The system utilizes a camera pair and a projector to monitor the state of a real world library shelf. As books are added to the shelf a foreground detection algorithm which takes into account the projected information yields new pixels in each view that are then verified using a planar parallax constraint across both cameras to yield the book spine. Using a simple calibration scheme, the homography induced by the world plane in which book spines approximately lie is estimated. Users are then able to query for the presence of a book through a user interface and book spines are highlighted by transforming image pixels to their corresponding points in the projector's frame via the known homography. The system also can display the state of the bookshelf at any time in the past. Projected information can also be used to enhance the image-processing tasks at hand and we briefly explore this in this work.
Starting Page	218
Ending Page	225
File Size	393820
Page Count	8
File Format	PDF
ISBN	0769522718
DOI	10.1109/ACVMOT.2005.116
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Smart cameras Layout Books Displays Costs Brightness Monitoring Libraries Detection algorithms Calibration
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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