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Several algorithms for polarimetric synthetic aperture radar (PolSAR) data indexing and classification were proposed in the state of the art literature. In particular, one of them computes powerful, compact feature descriptors composed of the first three logarithmic cumulants of the BiQuaternion Fractional Fourier Transform (BiQFrFT) coefficients of PolSAR patches. Since the BiQFrFT of each patch...
Audio data like speech and music can be analyzed and processed with Fourier methods, having as one constraint the constant product of time and frequency resolutions. This problem can be avoided applying the wavelet transform, ensuring good resolutions on both time and frequency supports. We propose in this paper to determine features of music in a combined framework using multi-resolution (wavelet)...
With the launch of the German TerraSAR-X system in June 2007, a new generation of high-resolution spaceborne synthetic aperture radar (SAR) data is available; which should facilitate the interpretation of urban environments. This article proposes a new automatic tool for geometric and topological urban areas characterization. Our approach is divided into three main steps. First, a bright linear structures...
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