In this paper, two different approaches for horizon picking are examined. The first one is a simple line detection algorithm applied to the full resolution image. The second algorithm is a multiscale line detection algorithm, based on the wavelet transform of the iamge. Both full resolution and multiresolution line detection algorithms are applied to 2D seismic images and compared in terms of their performance. Results show that the full resolution line detection approach outperforms the multiresolution approach.
In this paper, vegetation indices are defined to characterize the vegetation content of sets of pixels. Vegetation indices provide information about the presence or lack of vegetation on the ground, but do not provide knowledge for the class of vegetation. However, vegetation indices are widely used for the construction of vegetation maps. In this paper, several vegetation indices are introduced for sets of pixels and their relationship with the fractional vegetation cover is examined with the help of simulated and real satellite data.
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