Velocity and Acceleration Measurement from the Spatio-Temporal Fourier Transform of Low Light Level Images |
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Authors: | Manuel P Cagigal Pedro M Prieto |
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Institution: | (1) Dept. Fisica Aplicada, Univ. de Cantabria, 39005 Santander, Spain |
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Abstract: | The spatio-temporal Fourier transform is usually applied to determine the velocity of an object from a series of standard light intensity frames. In this paper the technique has been extended to determine the object acceleration. The techniques for velocity and acceleration determination based on the spatio-temporal Fourier transform have been applied to experimental low light level images. Under these conditions, the processing time is reduced so that, in those cases in which it is necessary to quickly obtain the object velocity or acceleration, low light level conditions would be advantageous, using intensity filters if necessary. |
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Keywords: | velocimetry acceleration measurement low-light-level images spatio-temporal Fourier transform |
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