2,798 research outputs found
Compressive sensing based velocity estimation in video data
This paper considers the use of compressive sensing based algorithms for
velocity estimation of moving vehicles. The procedure is based on sparse
reconstruction algorithms combined with time-frequency analysis applied to
video data. This algorithm provides an accurate estimation of object's velocity
even in the case of a very reduced number of available video frames. The
influence of crucial parameters is analysed for different types of moving
vehicles.Comment: 4 pages, 5 figure
Aspects of mutually unbiased bases in odd prime power dimensions
We rephrase the Wootters-Fields construction [Ann. Phys., {\bf 191}, 363
(1989)] of a full set of mutually unbiased bases in a complex vector space of
dimensions , where is an odd prime, in terms of the character
vectors of the cyclic group of order . This form may be useful in
explicitly writing down mutually unbiased bases for .Comment: 3 pages, latex, no figure
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