Zero Phase Representation of Panoramic Images for Image Vased Localization
CAIP '99 Proceedings of the 8th International Conference on Computer Analysis of Images and Patterns
Multireference alignment using semidefinite programming
Proceedings of the 5th conference on Innovations in theoretical computer science
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In this paper we propose the use of Multilayer Perceptrons (MLPs) to align High Range Resolution (HRR) radar signals circularly shifted in time. To study the performance, the error of shift estimation is measured for different values of Signal to Noise ratio (SNR). The Zero Phase method is used for comparison purposes. Results show the best performance of the Zero Phase method with completely misaligned patterns, and the best performance of the MLP with low grades of misalignment. Using these results, a new method is proposed. First, the Zero Phase algorithm is used to pre-align the signals. Then, a MLP is trained using the pre-aligned signals in order to get more accuracy on the estimation of the shift. Results show an improvement up to 30%.