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Profile Steve Hawker*
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Message 6458 - Posted: 10 Nov 2016, 15:32:49 UTC

I would like to discuss the following trail cam image:



Refer to the two white dots to the left of the pond.

Are those the birds I'm supposed to count or is that snow?

If they are birds, how do I "count" them?

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Message 6459 - Posted: 11 Nov 2016, 0:58:22 UTC - in response to Message 6458.
Last modified: 11 Nov 2016, 0:59:18 UTC

That is obviously a closeup of an alligator tail sliding through the swamp muck.

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Message 6462 - Posted: 11 Nov 2016, 7:46:32 UTC - in response to Message 6458.
Last modified: 11 Nov 2016, 7:53:25 UTC

First time I now see that reviewing pictures for counting birds is possible...
After doing some I have to say this is without a doubt the hardest thing ever here, the birds are hard to make out of these (terrible) pictures.

Refer to the two white dots to the left of the pond.

Are those the birds I'm supposed to count or is that snow?

According to the species help it's nothing so far you need to mark, these two dots look way too small for birds.

If they are birds, how do I "count" them?

I guess that is done automatically. If you mark a bird it's called "Selection 1" and so on...

Edit:
First "complaint" from my side to this is that skipping an image is not possible, it always gives me back the same image.
And another problem is still not fixed: when you have made bird selections and the next image contains nothing, you can't press "there's nothing here". It then is necessary to mark a blind spot and remove the selection to make the button available.
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Marshall Mattingly
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Message 6492 - Posted: 6 Dec 2016, 0:59:38 UTC - in response to Message 6462.

Forgive me for just seeing this now. Trying to be more active in the forums, etc.

I'd agree that there is nothing in this image as far as marking goes, but I'll work with the biologists to confirm this and get more comprehensive examples online.

I'm also interested in developing a standardized set of "examples" that everyone can work through before actually going through the images to have a little more confidence in the responses. I think that will go a long way to helping address some of these issues.

First "complaint" from my side to this is that skipping an image is not possible, it always gives me back the same image.
And another problem is still not fixed: when you have made bird selections and the next image contains nothing, you can't press "there's nothing here". It then is necessary to mark a blind spot and remove the selection to make the button available.


The "there's nothing here" bug is very interesting and I'll look into it right away.

As for skipping an image, that's not currently possible for this image set, so I'll have to decide whether to (1) remove that element or (2) make it functional. Currently, we split a large image into many smaller images and present the smaller ones, in order, to be reviewed.

We do this so a single user can go through a single mosaic over the course of several days instead of a single sitting (some of these mosaics get split down into almost 1000 smaller images). I'm definitely going to think about how to allow "skipping" both individual images within a mosaic (maybe come back to them later) and/or skipping a mosaic entirely.

Any further suggestions are definitely welcome![/quote]

Susan Felege
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Message 6677 - Posted: 23 Jan 2017, 20:51:33 UTC - in response to Message 6492.

All -

This image is tough. I suspect it was taken at about 400 feet above ground level and unless you zoom in, it is hard to tell if something is a bird, a rock, or snow. One of the goals of this project is to determine the minimum number of pixels we need to tell something is a goose (or other animal) to set standards. We can then use that information to establish flight protocols and select cameras with appropriate resolutions to meet our minimum needs for accurate counting from aerial counts. Further, we are using different software to stitch together the mosaic and test which does a better job with that. Please hang in there as we test some things out to improve image quality.

Hope that helps clarify things,
Susan

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Message 6796 - Posted: 7 Mar 2017, 16:47:04 UTC - in response to Message 6492.
Last modified: 7 Mar 2017, 16:48:10 UTC

And another problem is still not fixed: when you have made bird selections and the next image contains nothing, you can't press "there's nothing here". It then is necessary to mark a blind spot and remove the selection to make the button available.


The "there's nothing here" bug is very interesting and I'll look into it right away.

Well, after being absent for a while I thought I make some images again here, but I just found out that this bug is still not fixed even if you said you "look into it"... ;-)
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Message boards : Image and Video Discussion : What are we looking at?