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- W2013307145 abstract "The ladar range image has received considerable attentions in the automatic target recognition field. However, previous research does not cover target recognition using log-polar ladar range images. Therefore, we construct a target recognition system based on log-polar ladar range images in this paper. In this system combined moment invariants and backpropagation neural network are selected as shape descriptor and shape classifier, respectively. In order to fully analyze the effect of log-polar sampling pattern on recognition result, several comparative experiments based on simulated and real range images are carried out. Eventually, several important conclusions are drawn: (i) if combined moments are computed directly by log-polar range images, translation, rotation and scaling invariant properties of combined moments will be invalid (ii) when object is located in the center of field of view, recognition rate of log-polar range images is less sensitive to the changing of field of view (iii) as object position changes from center to edge of field of view, recognition performance of log-polar range images will decline dramatically (iv) log-polar range images has a better noise robustness than Cartesian range images. Finally, we give a suggestion that it is better to divide field of view into recognition area and searching area in the real application." @default.
- W2013307145 created "2016-06-24" @default.
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- W2013307145 date "2010-12-01" @default.
- W2013307145 modified "2023-10-18" @default.
- W2013307145 title "La cinétique de la charge virale après le début d’un traitement antirétroviral : une baisse plus rapide de la charge virale a-t-elle vraiment un intérêt ?" @default.
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- W2013307145 doi "https://doi.org/10.1016/j.patbio.2009.03.005" @default.
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