By Topic

Digital zoom camera with image sharpening and suppression

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Weerasinghe, Chaminda ; Motorola Australian Res. Center, Sydney, NSW, Australia ; Nilsson, M. ; Lichman, S. ; Kharitonenko, Igor

The intention of zooming in a video camera is to obtain more detailed visual information than the full frame view. The optical zooming mechanisms provide this additional information, however, when optically zoomed, the camera no longer detects the full frame view, which was detected before zooming. Digital zooming can detect the full view at all times, however, fails to provide additional visual information when zoomed. In applications such as visual surveillance and manufacturing quality measurement, it is required to detect the full frame view at all times, the camera should be capable of providing additional visual information when zoomed to the region of interest (ROI). This paper presents a video camera system incorporating an autonomous pan, tilt and zoom functionality based on ROI decided upon motion detection capability, which provides more visual information in zoomed modes while detecting the full view at all times. The intelligent ROI decision can be made not only based on motion but also shape, color, sizes etc. of targeted objects for tracking. Image sharpening and noise reduction methods are also provided within the camera system. Standard testing results indicate that this camera system can resolve up to 800 TV lines and produces comparable color quality to other CCD based CCTV surveillance cameras, especially at good lighting conditions.

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:50 ,  Issue: 3 )