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Hexagonal sampling grid offers less storage time, less computation time, increased coding efficiency, less quantization error… Expand A method—PA-keyhole—for 2D/3D dynamic magnetic resonance imaging with radial scanning is proposed. PA-keyhole exploits the… Expand In Earth observation programs there is a need of passive low frequency (L-band) measurements to monitor soil moisture and ocean… Expand In this paper a new method for the analysis of fingerprint images is presented. A Hexagonal Fourier Transform is applied that… Expand The majority of machine vision systems derive their input data by digitising an image to produce a square grid of sampled points… Expand A case is made for the use of regular hexagonal sampling systems in robot vision applications. With such a sampling technique… Expand The simulation of a pipeline image processor is presented. The pipeline is comprised of a series of common hardware processor… Expand Abstract An optimum hexagonal sampling structure for use with a raster scan input device is described. A set of local operators… Expand Two-dimensional signals are normally processed as rectangularly sampled arrays; i.e., they are periodically sampled in each of… Expand