VELOCITY AND ACCELERATION MEASUREMENT FROM THE SPATIOTEMPORAL FOURIER-TRANSFORM OF LOW-LIGHT-LEVEL IMAGES

The spatio-temporal Fourier transform is usually applied to determine the velocity of an object from a series of standard light intensity fr ames. In this paper the technique has been extended to determine the o bject acceleration. The techniques for velocity and acceleration deter mination based on the spatio-temporal Fourier transform have been appl ied to experimental low light level images. Under these conditions, th e processing time is reduced so that, in those cases in which it is ne cessary to quickly obtain the object velocity or acceleration, low lig ht level conditions would be advantageous, using intensity filters if necessary.