Temporal Block Filter ( IATemporalBlockFilter )
Parameters:
| Name |
Short Name |
Type |
Description |
| Window width |
width |
integer |
Number of frames for calculation of the median |
| Filter type |
type |
string |
Available filters: "Min", "Max", "Mean", "Median", "First frame" |
| Block mode |
blockmode |
boolean |
Results are calculated consecutive blocks, each block yielding a new frame. |
Description:
Calculates running mean, median, min or max in time over each pixel. When block mode is used, the image series is split up to consecutive "Window width" length blocks, and the projection is performed in each block, resulting in a reduced number of frames matching the number of blocks. When block mode is disabled, projection is perfromed in a running fashion, perfomed for each frame. The resulting image series is shorter by "Window width"-1 due to clipping of overhangs in time at the beginning and the end of the time course.
Use "Filter Type"="Min", "Max" or "Median" for a running temporal non-linear filter with block mode off. Alternatively use Temporal Average or Median Filters instead for in place operation not changing frame number.
Use "Filter Type"="First frame" or "Mean" to reduce numbers of frames with or without introducing temporal blurring. In this case enable block mode.
Use this function for preparation of masks for block mode Optical Flow images.
Not in place operation, creates a new Image Window, because the total number of frames decreases.
Block mode results in original frames / "Window width" number of new frames, one new frame is resulted from each block. Blocks follow each other without overlaps.
Functions
Glossary
