NDLI: Design and implementation of a scanner with stitching of multiple image capture

Content Provider	IEEE Xplore Digital Library
Author	Ying-Wen Bai Chien-Chung Cheng
Copyright Year	2008
Description	Author affiliation: Dept. of Electron. Eng., Fu Jen Catholic Univ., Taipei (Ying-Wen Bai; Chien-Chung Cheng)
Abstract	Instead of the flatbed scanner which moves slowly as it scans, we propose in this paper a new design of a high-speed and low-power scanner with a stitching of multiple image capture. We divide the area to be scanned into four parts, capture each image and then stitch these into a whole. Our design uses the compact camera module (CCM) advantages of high integrity, of white balance, of advanced calibration, and of auto exposure for color and luminance, which reduce the software post-processing time. To solve the light reflection problem we propose the compensation method by means of an interleaved light source. To reduce power consumption and prevent light reflection among the four scan areas, we scan the four images one by one, by which a single CCM is turned on while the others are turned off. We use field of view (FOV) calculation to obtain the overlap area used by the stitching algorithms.
Starting Page	1
Ending Page	4
File Size	1681872
Page Count	4
File Format	PDF
ISBN	9781424424221
DOI	10.1109/ISCE.2008.4559531
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-14
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	CMOS image sensors Cameras Energy consumption Image sensors Charge coupled devices Voltage CMOS process CMOS integrated circuits Optical reflection Light sources Field of View (FOV) Image Stitching Compact Camera Module (CCM)
Content Type	Text
Resource Type	Article

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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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