Abstract

To compensate for the imperfections of the endoscopic mechanical structure and the limitations of working space, a new technology based on the recursive minimum/maximum method is proposed to enlarge images obtained by the medical electronic endoscope. This method can be used repeatedly to obtain image enlargement to 2× by optimizing the neighborhood information of the pixels of interest in adjustable windows. In order to ensure the best evaluation of the pixel, the algorithm criterion is presented to decide whether the new gray value is assigned to the pixel. Experimental results from enlarged endoscopic images are presented that demonstrate that the recursive minimum/maximum method for image enlargement can preserve the fine details with rich edge information and with better visualization.

© 2002 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Endoscopic double-pulse electronic-speckle-pattern interferometer for technical and medical intracavity inspection

Björn Kemper, Dieter Dirksen, Wolfgang Avenhaus, André Merker, and Gert von Bally
Appl. Opt. 39(22) 3899-3905 (2000)

High-speed wide-field time-gated endoscopic fluorescence-lifetime imaging

J. Requejo-Isidro, J. McGinty, I. Munro, D. S. Elson, N. P. Galletly, M. J. Lever, M. A. A. Neil, G. W. H. Stamp, P. M. W. French, P. A. Kellett, J. D. Hares, and A. K. L. Dymoke-Bradshaw
Opt. Lett. 29(19) 2249-2251 (2004)

Seeing it through: translational validation of new medical imaging modalities

Melissa B. Aldrich, Milton V. Marshall, Eva M. Sevick-Muraca, Greg Lanza, John Kotyk, Joseph Culver, Lihong V. Wang, Jashim Uddin, Brenda C. Crews, Lawrence J. Marnett, Joseph C. Liao, Chris Contag, James M. Crawford, Ken Wang, Bill Reisdorph, Henry Appelman, D. Kim Turgeon, Charles Meyer, and Tom Wang
Biomed. Opt. Express 3(4) 764-776 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription