Advanced timeseries object linking example

File Information

Description

Artificial timeseries to explore some more interesting object linking scenarios.

This artificial timeseries builds on the Definiens-produced training examples to provide some more complex object linking scenarios:

objects with no overlap between frames
an object that buds and then fuses back together
objects that pass by each other too closely to trivially separate
an object that is not visible for one of the time frames.

The example ruleset illustrates the following ideas:

generation of levels after object detection to visualise linking on demand (run deactivated process at end)
itterative evaluation class based linking
forwards and backwards linking to handle both budding and fusing
elimination of crossing point by detection of multiple in and out links
examination of incoming and outgoing link angles to find and eliminate kinks in link chain caused by incorrect linking
linking across temporal gaps by use of eval class to find chain starts that related to preceeding chain ends.

I hope someone finds this useful!

Acknowledgements

The ideas in this example were formulated with my Tessella colleagues during a training session run by Florian Leiss.

Software Version
Definiens Developer XD - 1.5
Categories
Other
Files in Rule Set
  • Example analysis.dcp(314 KB )
  • Frames.zip(103 KB )
  • sshot.png(2.3 KB )
  • For downloading this file, please login or sign up for a new account.
Tags
object_linking, time_series
Views
677
Downloads
12
Created
05/05/2011

User Information

Please log in to comment on this rule set or to download the attached files.

If you do not have an account please register here.

Comments

Date: 08/05/2011
hi, I load the rule set in Definiens 7. But the rule set can not be opened. Is the version problem?
Date: 08/08/2011
I opened this ruleset by definiens 7.0, but failed. Would you describe the ruleset in detail? Thank you!
Date: 08/18/2011
Hi Sophia,
this rule set requires Developer XD 1.5 functionality, as indicated in the field "Software Version". To understand details of the strategy rule sets are best executed step by step.
Regards
Johannes