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Crayon Physics is a wonderful game because of the real motion of all the objects. Gravity and collision are two very important things in that game. I know that is the reason why it costs $19.95
Are there equivalent open source projects? I'm very interested in the code and all the physical laws. Or do I still have to go to school for a few years and then write it my own....
Here is another example (in Flash) where there are nice physics.
I don't know with which words I should search for a project like this.
Thanks
There are lots of open source physics engines. For example, have a look at the engines listed in this wikipedia article.
There are quite a few open-source physics libraries depending on what language you plan on using and if you need them for 3D/2D, but the best I know of are bullet for 3D and Box2D for 2D
Martijn, I'll bite.
Numpty Physics, (released open-source, GPL, here: http://numptyphysics.garage.maemo.org/ ) is a free game similar to Crayon Physics. It uses the Box2D physics engine (box2d.org) and has a built-in level editor.
In addition to the source code, you will also find binary packages for many popular operating systems.
Here's a shortcut to the code if you are impatient... 8)
https://garage.maemo.org/scm/?group_id=638
Hope that helps you out...
-Alan
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Has anybody seen a resource covering specifically the use of machine vision for locating a human in a room, including cases where they may be partially obscured? I know about OpenCV and other machine vision packages, but I'm looking for a paper/library/code example that focuses solidly on identifying a human in a room; something that is readily integrated into code rather than being a rough idea that would require weeks or months of tweaking or enhancing to do a reasonable job of succeeding at the task. I'd prefer something that does not require binocular vision and can work with a single camera.
First: you should read this about human detection. Then you can find/use opencv code implementing the training step of this kind of detector. You will need to access to a database for training like INRIA Person dataset.
Second: if you need to handle partial obstruction, you may need to implement a human body tracker that can handle this problem. Particle filter could do the work.
If you have problems with implementation feel free to ask more specific questions.
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Good evening,
I'm working on a project with Kinect and I need to perform a gender-recognition using the voice information caught by the microphone of the sensor.
The recognition could also be text-based, i.e. the sentence said by the user could always be the same. I "just" need the binary answer male/female.
I've checked the quite popular open-source Sphinx but I can't understand if it could be used for my needs.
Any idea of what I could use?
Thanks in advance.
For sake of completeness, finally I solved the recognition task without analyzing the voice input.
Gender can be detected with an acceptable precision also by learning and then classifying visual biometric traits. I used speech recognition only as "interface" to activate the demo.
There are several ways to achieve this. You can track pitch (lower pitch values will be male, otherwise female). Or try to build a GMM (Sphinx cannot do this, but HTK can), with one model for male, other for female and another to children.
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Suggest me any open source based platform/IDE/framework/toolkit for developing intelligent agent. I don't have any background in this area, would like to use a tool or any tutorial in building intelligent agent.
If you don't have any background at all, I suggest you start with something simple.
I had quite a good experience with dmangame, a simple Python engine where you can script the behaviour of agents.
The good point is that the installation is very simple, you know where to code your Python scripts for AI, there is a nice API for it. And you've got a nice graphical interface to see directly what you code.
Edit : By the way, look at this similar question
Weka is probably the most comprehensive open source AI toolkit. It's positioned as a tool for "data mining" but don't let that put you of - it's a general toolset for machine learning which is exactly what you need if you want to build an intelligent agent.
You can use any IDE you like with it (it's Java based so that gives you a range of great open source IDEs such as Eclipse or Netbeans, but you can also call the Weka libraries from other languages if you like).
It also has some of its own tools build it (for visualisation and exploring data sets etc.)
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This is the ponycorn game: http://www.untoldentertainment.com/games/sissy/
A couple of my non-programmer friends who are teachers are interested in building games with a similar look and feel with their kids.
What would be a good (the best) tool to get started with?
Independently of the particular game in question, there are some projects aiming to bring programming closer to non-programmers. The all differ in the level of abstraction though. Some of the most interesting ones :
Scratch visual, lego-like, great for kids, developed by the MIT
Lego Mindstorms provides visual programming, but I'm afraid, this is not suitable for programming ponys as it concentrates on the mindstorms robotics project.
processing - a former MIT project. Cross-platform (windows, linux, mac, android) scripting environment, is a rather thin layer over a java framework. very versatile, providing even OpenGL rendering, but your friends will have to write code still - simpler than with most other frameworks but still
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Is there a free (preferably public-domain or BSD-like license, but GPL will do) implementation of a multi-layer perceptron anywhere on the net?
I have textbook examples but the licenses are too restrictive, and although I can just about follow the math in the Wikipedia articles I'm not confident enough of getting it right and it's hard to test.
I've done a quick google search and found some free (as in beer) binary-only versions. I'm hoping to find an MLP which is part of a larger open-source project.
FANN (Fast Artifical Neural Network Library) is a great general-purpose neural-network library written in C but has bindings for just about any language you might want (C++, .NET, Python, Mathematica among others). Even better, it's open-source and licensed under the LGPL, so I'd imagine that would be fine for you.
Neuron.NET is another good alternative if you're using .NET (also open-source), though it's licensed under the GPL.
Hope that helps.
WEKA includes a multi-layer perceptron implementation. I haven't examined the source code myself but its GPL I believe.
OpenCV has a Feedforward neural network implementation.
Have a look at http://neuralensemble.org/trac/PyNN! It is a unified layer to a lot of different free simulators such as BRIAN, NEST, NEURON, etc.