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Reversible watermarking aims to restore the original data after watermark extraction, which is more suitable for copyright protection of 2D-vector maps. In this paper, we present a reversible watermarking strategy for 2D-vector maps based on iterative embedding. It begins with vertex grouping of each polyline. Then only the highly correlated data sets are selected as the cover data for iterative embedding...
This paper presents a novel single neural net-based classifier called dual-momentum hybrid wavelet neural nets (DM-HWNN). DM-HWNN inherits capability in learning efficiency from wavelet neural networks (WNN) and performance consistency in classification from backpropagation networks (BPN). An extra momentum term is introduced into the learning process to further speed up the convergence of the learning...
The information extraction technique for multimode seekerspsila automatic target acquisition is presented. A new multi-mode active radar seeker for long-range air-to-air missile is put forth, which has pulsed Doppler mode and linear frequency modulation mode to switch. Firstly the scheme of the multi-mode seeker is described, and then the information extraction algorithm based on super-resolution...
A feature Index-based algorithm is presented in the paper, which especially fits to the case that the base image is very large and real-time property is needed. It is divided into four steps: we firstly extract features of the base image, and establish feature-index table advanced; and then extract corresponding features of the sensed image; thirdly, compare the main properties of features and confirm...
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