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aharmer / pathtrackr

An R package for video tracking and analysing animal movement
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Error in tracking #15

Closed dhanyabharath98 closed 5 years ago

dhanyabharath98 commented 5 years ago

Hi,

I've just started using the software and I got the following message in R. Generating background reference frame...

|::::::::::::::::::::::::::::::::::::::::::::::::::| 100% |::::::::::::::::::::::::::::::::::::::::::::::::::| 100%

Tracking animal...

| | 0%Error in thresh(isoblur(as.cimg(tbox), blur)) : filter width exceeds picture width

Could anyone help me out with this? Thanks, Dhanya

aharmer commented 5 years ago

Hi, this is probably due to using a very small tracking box size. You could try increasing the tracking box size, and also splitting you video at a higher resolution if the animals are very small relative to the frame size.

dhanyabharath98 commented 5 years ago

Okay, thanks! Will try that. Also, how would you suggest going about deciding on the optimum splitting rate? I assume this would be dependent on how fast the animal moves, but is there a rough guide I can go with?

aharmer commented 5 years ago

Hi, as you say splitting rate really depends on the speed and movement pattern of your animal. A bit of trial and error will give you your optimal rate. It is really a trade off between accuracy and processing time.