NDLI: Image geometric corrections for a new EMCCD-based dual modular x-ray imager

Content Provider	IEEE Xplore Digital Library
Author	Bin Qu Ying Huang Weiyuan Wang Cartwright, A.N. Titus, A.H. Bednarek, D.R. Rudin, S.
Copyright Year	2011
Description	Author affiliation: Departments of Radiology, Mechanical and Aerospace Engineering, Electrical Engineering, Biomedical Engineering, Physiology and Biophysics, and Neurosurgery, University at Buffalo, Buffalo, NY 14214 USA (Rudin, S.) \|\| Departments of Radiology, Neurosurgery, Physiology and Biophysics, University at Buffalo, Buffalo, NY 14214 USA (Bednarek, D.R.) \|\| Departments of Physiology and Biophysics, University at Buffalo, Buffalo, NY 14214 USA (Weiyuan Wang) \|\| Department of Electrical Engineering, University at Buffalo, Buffalo, NY 14260 USA (Bin Qu; Ying Huang) \|\| Departments of Electrical Engineering and Biomedical Engineering, University at Buffalo, Buffalo, NY 14260 USA (Cartwright, A.N.; Titus, A.H.)
Abstract	An EMCCD-based dual modular x-ray imager was recently designed and developed from the component level, providing a high dynamic range of 53 dB and an effective pixel size of 26 μm for angiography and fluoroscopy. The unique 2×1 array design efficiently increased the clinical field of view, and also can be readily expanded to an MxN array implementation. Due to the alignment mismatches between the EMCCD sensors and the fiber optic tapers in each module, the output images or video sequences result in a misaligned 2048×1024 digital display if uncorrected. In this paper, we present a method for correcting display registration using a custom-designed two layer printed circuit board. This board was designed with grid lines to serve as the calibration pattern, and provides an accurate reference and sufficient contrast to enable proper display registration. Results show an accurate and fine stitching of the two outputs from the two modules.
Starting Page	2634
Ending Page	2637
File Size	846308
Page Count	4
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6090726
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	X-ray imaging Optical sensors Optical imaging Image sensors Arrays Calibration
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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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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