Results of the algorithm show that the adaptive method is capable of effectively reducing the solution error. In the last Figures 6.41 to 6.43, we show two test images (showing a ``plaid'' pattern and a natural scene), with the obtained optical flow.
For the ``plaid'' image, we show the r.m.s. error obtained with the adaptive (lower-line) and homogeneous (upper-line) scheme and the resulting fields.
For the natural image, we show in Figure 6.42, the average
computed velocity (in a region centered on the pine cone) as a function
of the correct velocity for different number of layers. Increasing the
number of resolution grids increases the range of velocities that are
detected correctly by the algorithm. The pine cone is moving upward
at the rate of 1.6 pixels per frame. The
multiscale algorithm is always better than
single-level algorithm, especially at larger velocity 
.