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Playing Back Recorded Video
XX128-33-00 Rev 806 Kollector Pro Network Digital Video Recorder
Option Description
When the
Pencil
tool is selected, the cursor becomes a pencil icon.
You can define ROIs by clicking and dragging over the required view area
segments, thereby drawing arrays of colored grid blocks.
The
Tool Size Selector
area includes buttons for three pencil sizes.
According to the selected size, the cursor draws a small (single block),
medium (4-block) or large (16-block) width of grid blocks per sweep.
When the
Eraser
tool is selected, the cursor becomes an eraser icon. You can
erase ROI segments by clicking and dragging over selected grid blocks, thereby
erasing them.
The
Tool Size Selector
area includes buttons for three eraser sizes.
According to the selected size, the cursor erases a small (single block),
medium (4-block) or large (16-block) width of surface blocks per sweep.
The
Minimum Number of Blocks
selector enables you to define how many blocks
of the colored grid arrays must be simultaneously involved in the change, compared
to the reference frame, before a detection is recognized. For example:
•
1
(the most sensitive setting) – indicates that a detection should be recognized
if a change is detected in even one block amongst all the defined ROIs (that is,
the triggering is unlimited).
•
16
(the least sensitive setting) – indicates that the change must be
simultaneously detected in at least 16 blocks within the entire view area. The
blocks do not have to be contiguous.
NOTE:
The selected minimum cannot exceed the total number of blocks
defined in ROIs.
The
Show Grid
button applies a gray planning grid to the parts of the window
where no ROIs (colored grid blocks) are defined. The gray grid is only for purposes
of viewing where ROIs may potentially be defined and does not affect the change-
detection process. When selected, the button changes into a
Hide Grid
button by
which the planning grid can be suppressed, making only the "active" colored grid
blocks visible.
How Episodes Are Determined
Episodes are sequences of consecutive frames in which significant differences in ROIs are detected. An
episode includes all the frames related to a unique event for which the minimum event duration is determined
by the
Detect only episode longer than
criteria, and the required amount of changes of most frames is
determined by the
Minimum Number of Blocks
criteria.
