H. Kalviainen, MOTION DETECTION USING THE RANDOMIZED HOUGH TRANSFORM - EXPLOITING GRADIENT INFORMATION AND DETECTING MULTIPLE MOVING-OBJECTS, IEE proceedings. Vision, image and signal processing, 143(6), 1996, pp. 361-369
An algorithm to detect one moving object using the randomised Hough tr
ansform (RHT) has previously been proposed. This new nonmodel-based me
thod, called motion detection using randomised Hough transform (MDRHT)
, was shown be to applicable to translational and rotational motion de
tection of one moving object. The basic, earlier version of the MDRHT
utilises edge points only as its features. The MDRHT is extended to us
e both edge pixels and the intensity-gradient vector at edge pixels. M
oreover, the MDRHT method is generalised to detect also multiple movin
g objects. The translational-motion experiments with the variant of th
e technique using gradient information and coping with several moving
objects give promising results in two-dimensional-motion detection and
estimation, compared with the earlier version of the MDRHT.