Parameters and Presets
Parameters
Recipe parameters for Filament Tracking and their descriptions are summarized in the table below.
Preset Group | Parameter Name | Min Value | Max Value | Description |
---|---|---|---|---|
Detection | Background Removal Factor | 1 | 100 | Adjusts the sensitivity of the background removal operation; a lower value will preserve larger objects and more background variations |
Contrast Threshold | 0 | 255 | Adjusts the detection sensitivity on the background removed image; a lower value will detect more objects | |
Frame Offset | 1 | 1,000 | Specifies the time offset (in frames) the detection will look to determine whether a filament end point represents the leading edge ("head") or the trailing edge ("tail") by the change in intensity; a higher value will improve the detection of slower-moving filaments | |
Min Head Separation Distance | 1 | 100 | Specifies the minimum distance between two filament heads | |
Tracking | Max Search Range | 0 | 1,000 | Specifies the maximum distance for track point match-making between successive time frames; a higher value will expand the search distance for fast-moving objects |
Min Track Length | 0 | 10 | Specifies the minimum number of time frames before a detected object is considered a valid track; a lower value will generate more, and often shorter, tracks | |
Gap Length | 0 | 10 | Specifies the maximum number of time frames for linking tracks that are spatially colocated; a higher value will preserve particle tracks for longer |