Object Tracking using Detection as ROI

[mr97]

Hello, 

I'm trying to implement an object tracking in LabVIEW. I've written a VI (attached) to detect and locate the centroid of elliptical shapes (because my circular subject can possibly be rotated and appear as an ellipse). However, the detection is not successful on every frame.

For this reason, I would like to use the object detection method I've written as a ROI reference for an object tracker, whereby the object detector runs every 10-20 frames or so to make sure the tracker has not accumulated too much error. Any advice on how I can do this? Thanks! 

Additionally, any criticism or advice on my object detection method would be appreciated. 

[Tepig]

ooppss... I don't use LabVIEW 2018

https://forums.ni.com/t5/LabVIEW/Notice-Attach-VI-Snippets-to-post-rather-than-upload/td-p/3660471

[mr97]

Hi. Is this ok? Thanks for the snippet tip