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Many camera lenses, particularly low-cost or wide-angle lenses, can cause significant image distortion. This means that features extracted naively from such images will be incorrect. A traditional approach to dealing with this problem is to digitally rectify the image to correct the distortion, and then to apply computer vision processing to the corrected image. However, this is relatively expensive...
To make the e-government procurement process totally secure, protecting critical information at database level is absolutely vital along with ensuring secure data transaction over the network. With the assumption that network security in data transaction is ensured, this paper focuses on how to store, process and retrieve data so that critical information remains secured and cannot be viewed by anyone...
The switching voltage reduction in optical directional coupler switch utilizing alternating Deltabeta is fully analyzed. It is shown that increasing the number of sections in electrode can reduce the switching voltage significantly. But high-speed operation of the switch is limited as the number of electrode-section increases. In this paper, the improvements of above problems are discussed. By the...
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