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Auto Data Capture Program Options.
Search Radius. The search radius defines the search window size. For example, a search
radius of 5 would result in a window of size 11 x 11 pixels. (5 pixels to the right of the
predicted pixel location) + (5 pixels to the left) + (the predicted pixel location) = 11 pixels.
Minimum and Maximum Marker Outline Size. These options set the minimum and
maximum marker perimeter size to prevent small and large errant "bright spots" from being
automatically selected as a marker and for minimizing crossover error.
Threshold. Threshold sets the minimum intensity
value (0-255) that a pixel must be in order for it to be
considered a candidate for a pixel representing a
marker.
Pictures to Digitize. The program must know,in
advance, how many pictures should be automatically
digitized. In order to determine this number, view the
frame numbers on the computer monitor while using
the shuttle search on the VCR to detect the
beginning and ending frames to be digitized for a
particular trial and find the difference, then multiply
by two.
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resultin differentcoordinatevalues:
Path Editor. This section allows the user to edit the
digitized markers. Users may view the path of each
marker(s) digitized and redigitize a marker(s). When
redigitizing a marker(s), the user has the option of
manually redigitizing the marker(s) or having the
program interpolate where the marker(s) should be digitized. The program uses a cubic spline
routine to interpolate the markers.
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Peak 2D Training - Teacher's Guide
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