[Bf-committers] Bf-committers Digest, Vol 81, Issue 5

shuvro sarker shuvro05 at gmail.com
Sat Apr 2 14:48:14 CEST 2011 

On Sat, Apr 2, 2011 at 4:00 PM, <bf-committers-request at blender.org> wrote:

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> Today's Topics:
>
>   1. Re: Revised GSoC proposal: Realtime motion        capture input and
>      motion recording (Lars Krueger)
>   2. Re: new contributor (Campbell Barton)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 02 Apr 2011 00:19:43 +0200
> From: "Lars Krueger" <lars_e_krueger at gmx.de>
> Subject: Re: [Bf-committers] Revised GSoC proposal: Realtime motion
>        capture input and motion recording
> To: bf-blender developers <bf-committers at blender.org>
> Message-ID: <20110401221943.129220 at gmx.net>
> Content-Type: text/plain; charset="utf-8"
>
> > I have modified my proposal a lot according to the comments and advices
> of
> > the developers on the mailing list.
> > Here is link of the modified proposal.
> >
> > Realtime motion capture input and motion recording for Blender - Test
> case
> > is using the Kinect. <http://wiki.blender.org/index.php/User:Shuvro>
> >
> > Thanks to all of you for your kind help and advice.
>
> Instead of implementing a classifier yourself, make use of readily
> available libs, e.g. libsvm, SNNS, or libANN
>
> Regarding k-nearest-neighbour (kNN) vs. neural network: Which one is more
> robust depends mostly on the distribution of you input data. As a rule of
> thumb: if you have several randomly distributed clusters, kNN is better. If
> you have connected "peninsulas", neural networks such as the MLP are better
> suited.
>

Thanks for your informative advice. I will try to read more about what will
be more suitable for this case.

>
> Without reading the paper, I would assume the authors used kNN due to its
> performance for this problem. I could imagine that many people put their
> foot down in only a few way, while there are quite a few ways to move a foot
> while not putting it down. Hence, you have a few clusters in the "foot down"
> class, and basically random samples for the other class(es).
>
> Before jumping to a different classifier, why not simply re-implement the
> paper first? A kNN with few classes is pretty hard to beat regarding speed,
> mostly only by a polynomial classifier.
>
> Also: Backprop is a training method for neural networks, which can be
> applied to a number of NNs. It is not a neural network itself as your wiki
> entry suggests. You might want to correct that for the application. I guess
> the guys at Google are well-versed regarding classification.
>

I am well aware of that. And the link I provided described the
backpropagation algorithm in detail, in which some other related concepts
are discussed for clarity. It is not a link about the general neural network
concepts or sth like that. If you go through the pages of the provided link,
you can easily find that out.

Thanks again for your reply. Stay fine.

>
> --
> Dr. Lars Krueger
>
>
> Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir
> belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de
>

Shuvro

>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 2 Apr 2011 03:50:33 +0000
> From: Campbell Barton <ideasman42 at gmail.com>
> Subject: Re: [Bf-committers] new contributor
> To: bf-blender developers <bf-committers at blender.org>
> Message-ID: <BANLkTimgzTu_XYH3Mqg0hXa7pceMyxtAqQ at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> If your very new to blender and the simple todo's don't look so
> simple, I'd suggest some very basic tasks (even if they are not quite
> so interesting).
> Modifying tooltips, or making minor UI improvements are not so fun,
> but it helps you get used to building blender and navigating the
> source  & submitting changes.
>
> If you are looking for areas which need maintaining (and interested in
> python) you could look into our addons since they are mostly community
> maintained and it might be easier to find simple bug
> fixes/improvements there.
>
> I wrote a post of my own suggestions to new devs here, you may find it
> helpful:
>
> http://blenderartists.org/forum/showthread.php?200013-develop-and-improve-the-source-code-of-blender&p=1721623&viewfull=1#post1721623
>
> The extension saving feature should not be in simple-todo's, swapping
> out operators in the file selector while its open isn't all that
> simple and should be done by a developer who's familiar with this area
> and able to get it working for C & Python operators so new scripts and
> register their extensions.
>
> On Fri, Apr 1, 2011 at 5:34 PM, Ruoruo Zhang(Lily) <lilyruo at gmail.com>
> wrote:
> > Do i need to file a more detailed feature/task somewhere?
> >
> > "Have the save extension picked based on the format in UI session" is not
> > really clear, at least it doesn't mention what formats are supported. So
> I
> > am assuming all possible blender format supported.
> >
> > Ruoruo Zhang(Lily)
> > Software Development Engineer
> > Lab126, ?Part of the Amazon.com, Inc. group of companies
> > Tel: 213-2715173(Mobile)
> >
> >
> >
> > On Fri, Apr 1, 2011 at 10:20 AM, Davis Sorenson <
> davis.sorenson at gmail.com>wrote:
> >
> >> Hi Ruoruo,
> >>
> >> For developing your own features I would recommend checking out the SVN
> >> repository and using git for local development, like in this tutorial:
> >> http://www.youtube.com/watch?v=CxuTxzR7w9U
> >> It's a good way to keep track of your code and create patches.
> >> Davis
> >>
> >>
> >>
> >> On Fri, Apr 1, 2011 at 8:12 PM, Ruoruo Zhang(Lily) <lilyruo at gmail.com
> >> >wrote:
> >>
> >> > I am not sure if I can go for GSOC project since I must be ?a student
> to
> >> > participate...
> >> >
> >> > To start with, I choose:
> >> >
> >> > ? - Have the save extension picked based on the format in UI session
> >> >
> >> > I am assuming I have read permission on the code base by default?
> >> >
> >> > Ruoruo Zhang(Lily)
> >> > Software Development Engineer
> >> > Lab126, ?Part of the Amazon.com, Inc. group of companies
> >> > Tel: 213-2715173(Mobile)
> >> >
> >> >
> >> >
> >> > On Fri, Apr 1, 2011 at 9:56 AM, Tom M <letterrip at gmail.com> wrote:
> >> >
> >> > > Hi,
> >> > >
> >> > > I'd recommend something from the simple todos list
> >> > >
> >> > >
> >> > >
> >> >
> >>
> http://wiki.blender.org/index.php/Dev:2.5/Source/Development/Todo/Simple_Todos
> >> > >
> >> > > or a idea that is one of the sub ideas for gsoc
> >> > >
> >> > >
> >> http://wiki.blender.org/index.php/Dev:Ref/GoogleSummerOfCode/2011/Ideas
> >> > >
> >> > > LetterRip
> >> > >
> >> > > On Fri, Apr 1, 2011 at 8:48 AM, Ruoruo Zhang(Lily) <
> lilyruo at gmail.com>
> >> > > wrote:
> >> > > > Hi all,
> >> > > >
> >> > > > I want to contribute to blender project. I see a couple suggested
> >> > > projects
> >> > > > for new developer:
> >> > > >
> >> http://www.blender.org/development/current-projects/project-openings/
> >> > > >
> >> > > > <
> >> http://www.blender.org/development/current-projects/project-openings/
> >> > > >Can
> >> > > > anyone suggest a couple ramp-up feature/bug for me to start with?
> >> > > >
> >> > > > Very appreciated.
> >> > > >
> >> > > > Lily Zhang
> >> > > > _______________________________________________
> >> > > > Bf-committers mailing list
> >> > > > Bf-committers at blender.org
> >> > > > http://lists.blender.org/mailman/listinfo/bf-committers
> >> > > >
> >> > > _______________________________________________
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>
>
>
> --
> - Campbell
>
>
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> End of Bf-committers Digest, Vol 81, Issue 5
> ********************************************
>



-- 
To me life is nothing but a thrill.

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