area list in TrakEM2

[Luisa de Vivo]

Hello,

I have been using TrakEM2 to segment and reconstruct objects in 3d with the
area list tool, but I have noticed that sometimes volume or surface area
measurements change after I have added a new area list in my project.

I have noticed changes in volume up to 10% sometimes. I could not find any
pattern, this phenomenon seems to happen randomly in some area lists but
not in others. I am pretty sure that I am not accidentally adding/removing
pixels to the old area lists.
Did anyone notice something similar or can anyone think about a possible
explanation for this phenomenon?

Thank you,

Luisa


--
Luisa de Vivo, PhD
Department of Psychiatry
University of Wisconsin
6001 Research Park Boulevard
Madison WI 53719

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ImageJ mailing list: http://imagej.nih.gov/ij/list.html

[Ignacio Arganda-Carreras-2]

Hello Luisa,


I have been using TrakEM2 to segment and reconstruct objects in 3d with the
> area list tool, but I have noticed that sometimes volume or surface area
> measurements change after I have added a new area list in my project.
>

Do you mean the area measurement of the old arealist? Is it linked to the
new one?


>
> I have noticed changes in volume up to 10% sometimes. I could not find any
> pattern, this phenomenon seems to happen randomly in some area lists but
> not in others. I am pretty sure that I am not accidentally adding/removing
> pixels to the old area lists.
> Did anyone notice something similar or can anyone think about a possible
> explanation for this phenomenon?
>

It would help if you can send some screenshots of what you are
experimenting. Also I would recommend you to post your questions in the
ImageJ forum: http://forum.imagej.net/

Best,

>
> Thank you,
>
> Luisa
>
>
> --
> Luisa de Vivo, PhD
> Department of Psychiatry
> University of Wisconsin
> 6001 Research Park Boulevard
> Madison WI 53719
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

--
Ignacio Arganda-Carreras, Ph.D.
Ikerbasque Research Fellow
Departamento de Ciencia de la Computacion e Inteligencia Artificial
Facultad de Informatica, Universidad del Pais Vasco
Paseo de Manuel Lardizabal, 1
20018 Donostia-San Sebastian
Guipuzcoa, Spain

Phone : [phone]
Website: http://sites.google.com/site/iargandacarreras/
<http://biocomp.cnb.csic.es/%7Eiarganda/index_EN.html>

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ImageJ mailing list: http://imagej.nih.gov/ij/list.html