Why photoscan over 123Dcatch ? newbie

[3dprintergear]

Hi All, sorry if this has been asked. I did a search and couldn't find an answer.

Is there any reason, given its only for personal use, to use photoscan, rather than the free service Autodesk offer with 123Dcatch?

I want to print a model of my pregnant partner. (First step is to actually do the scan, and so far I haven't been very successful.)

Thanks

Regards
Jamie

[Wishgranter]

Hello Jamie, one of the simplest thing, it is NOT for commercial use, have a lot of limitation ( texture size ), reconstruction of object is not perfect ( a lot of errors on models - pscan without flaws on same data set  ) and  one of last things, the ALIGN process in Pscan is one of the best,  im could put together things that other solutions could never put together.

If want just play or better just have your data then someone from here could process it for you ( even me ), if want be better in photogrametry area, then Pscan "LITE" is best way to start.   

123D is just technology preview..........

[3dprintergear]

Hi Wishgranter,

Thankyou for your reply.

So you are saying Photoscan lite would do a better job than 123Dcatch?

[3dprintergear]

Also, can you give tips on how I should setup for best shots?

I have a canon 350D (older model).

My understanding is for even light. So should I try outside? Or do I really need multiple light sources ?

No blur. Does this mean the background should also stay in focus?

Should the item take up 90% of the picture?

Although a huge amount of work, should the pictures be modified in photoshop first ? Or just use the raw photos as they come out the camera?

Thanks

[Wishgranter]

Canon 350D is enought

the light should just not to make a HARD shadows ( in what is just dark area - no information ) shadows are not a problem for Pscan

Blur is problematic, but it the object of interest stay SHARP then background can be blurred, but if possible work with SHARP images everytime - Pscan need to find "features" that its can calculate positions of photos.

Yes, object should be close enought shooted - amount of detail that can be reconstructed and for the ALIGN proces..

No Pshop editing if possible - editing of colors, sharpnes etc - small editing can be done but NO lens corection or something like that.....

Shoot few images, test it, if need help, we will need few screenshots.........

What d printer you use ? some profesional like Z-Corp or ?

Have a nice day..
 

[3dprintergear]

Hi Wishgranter,

OK, I'll have another try and see how I go.

No Z-corp. I use an UP Plus. 3D printer.

Cheers
Jamie

[Alexey Pasumansky]

Hello Jamie,

I think you may find useful the following topics and tips related to the body capture:

http://www.agisoft.ru/forum/index.php?topic=411.0
http://www.agisoft.ru/forum/index.php?topic=578.0

http://downloads.agisoft.ru/pdf/Image%20Capture%20Tips%20-%20Full%20Body%20Capture.pdf


The main problems of the human body capture made by single camera is in providing static pose by model during the shooting.

[kris3d]

to Wishgranter:
I do not think this is the review article 123Dcatch technology.
I ran hundreds of tests and unfortunately Agisoft program very much disappointing.
Here you can compare and 123Dcatch , Agisoft.
123Dcatch !

Agisoft

Agisoft

123Dcatch !



my conclusions.
Agisoft works well but only in the laboratory.
Is a program for the reconstruction of planar surface structure.
The complex lumps, concatenate the empty space creates a lot of mistakes.
Quality is totally unacceptable.
The only plus is the quality of the textures ...

[Wishgranter]

Kris, read carefully on Autodesk site is a TECHNOLOGY PREVIEW, cannot use in any commercial work as far asi know- texture was limited to 2k. if YOU think is better then agisoft then use it, But many profesionals here use it in their work in a day-to-day  basis. Have you seen some sientific papers about comparations ? have seen few that are still in progres and im under NDA but what im have read is Pscan one of the best aviable tools and that say people that work in photogrametry for more than 10 years........

And by the way, autodesk give you just something to play, their REAL photogrametry sw is unreachable for anyone for now- Personaly know people behind it :-)

Do you think if you can use it freely then someone from here will pay for the PRO version ??

Im personaly do a lot in cultural heritage, have tested MANY datasets, and pscan is only one solution that could process the data, and without any extra editing.....

Have a nice reading and thinking about it......


P.S. for many of your "photogrametrist" is 123D some miracle, but for profesionals is is a "garbage" because of what it does and what not.........

Pricing and Availability

The Autodesk 123D Make technology preview is available as a free* download for the Mac at www.123Dapp.com/make. The Autodesk 123D Catch public beta app is available for free* download from www.123Dapp.com/catch.
 

[kris3d]

That's what I thought as you do, and for that I bought Agisoft
What you say is pure theory.
I show these images.
The same set of data.
Even the blind see the advantage, free software ...
I regret that

[Wishgranter]

Kris my only question go on how LONG are you in photogrametry area ACTIVE ? how many sw packages have you tested ?? what are your results ?? are for home use or for "work" that is internationaly accepted as one of best in that area  ?

and for your own better understanding about im speaking PLEASE read few whitepapers from this link
http://www.agisoft.ru/wiki/Links_and_Resources

this is the smalles what you can do, personaly have read ALL from year 2002 from here http://www.isprs.org/publications/archives.aspx

afther that we can speak again......


 

[kris3d]

You can talk a lot.
But one picture replaces a 1000 words.
Nobody could do it better.
This set of pictures released online.

http://www.agisoft.ru/forum/index.php?topic=655.0

Here's the results of 123Dcatch

[Wishgranter]

Kris, don?t be like a child please.......

Say me just 2 arguments WHY the hell people buy the PRO version for 3500,- and then not use  the free solution from autodesk.  And they invest in HW of PCs up to 20.000 EUR ??

and as a homework, please give me at least 2  whitepapers that are about 123Catch - OK ?

and will repeat my questions:

Kris my question go on how LONG are you in photogrametry area ACTIVE ?
how many sw packages have you tested ??
what are your results
are for home use or for "work" that is internationaly accepted as one of best in that area  ??
why all people here NOT use tools for remowing distorion of lenses ?


and as the american Indians say: HAWK

[kris3d]

loss of words.
You're right.
Most can not be wrong

I bought it too and thought it would be better.
But I see results, compares the work programs.
I draw conclusions.

[Wishgranter]

Kris take this forum as you personal gateway to photogrametry area, here is it the most active place where people share their knowlege ( as far then can ) with others and can give you a lot usefull hints.....

Is invested very heavy in photogrametry solututions and be prepared what all will come out in next 2 years  from all BIG players. but Agisoft is one of the best in implementations of OURs hints and upgrades to their software from what profit all here.......... + support with solving our "problems"

Have a nice evening :-)