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Re: Turbulent Jet Morphology?

Posted by Peter Haub on Jan 22, 2020; 11:41am
URL: http://imagej.273.s1.nabble.com/Turbulent-Jet-Morphology-tp5022840p5022882.html

Thank you Herbie.
I am logged in at <http://imagej.1557.x6.nabble.com/>
but I can't find the place / button / option where I can upload something.

Thanks also for pointing to the original question. I have already
registered the communication regarding this issue.
I think I kind of over-prioritize the little "etc." in the original
email and thought that optical flow is kind of analyzing morphological
changes in time .. so something with morphology
:-)

Regards
Peter

On 22.01.2020 12:20, Herbie wrote:

> Dear Peter,
>
> I did the upload via Nabble:
> <http://imagej.1557.x6.nabble.com/>
>
> I'm not aware of a certain size limit, although there must be some
> limitation.
>
> =========================
>
> Apart from this formal question, I should like to again point out that
> the OP (Frank Shaffer) likes to characterize the *morphology* of jets
> in *single* images. Originally he wrote:
>
> "Attached is an image from a high-speed video showing turbulence
> eddies of a submerged jet (UC Berkeley Fluid Dynamics Lab).  We would
> like to characterize the morphology (sizes, length scales, etc.)."
>
> More recently Frank confirmed that he is interested in jet
> characterization from single images:
>
> "The feature recognition only needs to work on one image. Then it can be
> repeated for the other images."
>
> That said, I'm not sure if "Optical Flow" that is based on image
> sequences, not single images, may help to characterize the jet
> morphology.
>
> Regards
>
> Herbie
>
> ::::::::::::::::::::::::::::::::::::::::
> Am 22.01.20 um 12:04 schrieb Peter Haub:
>> @Herbie
>> Hi Herbie, maybe you can explain how I can upload a file to the mail
>> server and attache the link in my email .. as you did in one of your
>> emails.
>>
>> (Is there a size limit ?)
>>
>> Thanks
>> and regards
>> Peter
>>
>>
>> -------- Forwarded Message --------
>> Subject:     Re: Turbulent Jet Morphology?
>> Date:     Tue, 21 Jan 2020 19:25:24 +0100
>> From:     Peter Haub <[hidden email]>
>> To:     ImageJ Interest Group <[hidden email]>, [hidden email]
>>
>>
>>
>> Hi Frank,
>>
>> have you tried to analyze the optical flow in your video?
>>
>> The the attached example (in the zip archive) - calculated with the FIJI
>> plugin 'OpticalFlow'.
>>
>> Regards,
>> Peter
>>
>>
>> On 20.01.2020 14:08, Frank Shaffer wrote:
>>> I don't have experience with the fractal recognition technique.
>>> If anyone would like to try their suggestions on an example video, you
>>> can download it here:
>>>
>>> www.FDShaffer.net/Berkeley/Test_009_Fluorescent_enhanced.avi
>>>
>>> It's only 31 frames.
>>>
>>> If you technique works well, I will be happy to give you credit in our
>>> publications.
>>>
>>> Thanks,
>>> Frank Shaffer
>>> FDShaffer.Net
>>>
>>> --
>>> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>>>
>>
>>
>>
>> --
>> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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