© 2003 Michael J Archer
v1.1
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Chapter 3 –Video Explorer
You’ll notice the “Search motion” text next to the Search Icon, next to this is the search results graphic
which gives you an indication of how much data to search through. Also notice the fragment time
marker will reflect the search position.
You’ll see how simple it is to find any movement of anything within a camera position.
With most tools there are a few options. And you’ll notice a few of these on the “Search Motion”
popup. Firstly is the
time. You can change this value by clicking the up and
down arrows next to the value. You’ll see 30 is the default. This controls how many seconds of time
will be skipped (i.e. not included in the search results) after a successful finding of an image.
The next setting is the
Search sensitivity
- defines changes in brightness level while comparing
pictures. With the rightmost value function will catch slightly changes in the brightness level, with the
leftmost value - only significant changes will be considered. Use the mouse to move the sliders position.
The
at the bottom controls weather when you do a search the searched window is
animated as the search carried out. That is to say every frame is displayed as fast as the system is able
to do the search. Turning off the Animation is a matter of click the tick box.
This will
make the search process slight faster.
At anytime during the search you wish to stop the process, you only need to click the left mouse button,
or you can press the ESC key on the keyboard.
Now as soon as you have search results. You’ll notice the
Icon will be
highlighted as
. This of course will clear the contents of the “Search Motion”
popup.
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