Mangalraj P.

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Target detection in synthetic aperture radar (SAR) images which are affected by speckle noise is a challenging task. An algorithm for automatic target detection in SAR images is proposed in this research work. In the first step, moving and stationary target acquisition and recognition (MSTAR) images are segmented and passed through multiple preprocessing(More)
The present paper proposes an evaluation schema for SAR image Segmentation. The segmentation of SAR images becomes a crucial step because the segmented results will be used as the input for the post- processing like target detection, change detection applications. The preprocessing task segmentation is highly influenced by inherent noise known as speckle.(More)
Two new and related species,Astragalus rupertii andA. pomphocalyx, are proposed as new. They differ from all known taxa of Mexican Astragali mainly by the globose- or suboblong-urceolate calyx, suboblong inflated pod, and number of ovules.Astragalus rupertii differs fromA. pomphocalyx by its elongated peduncles, loose racemes, and suboblong-urceolate calyx(More)
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