how does the histogram of optical flow work? [closed] - matlab

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I surf the web for HOF implementation in matlab or openCV. Actually I wanted to know how to write their code in matlab. I learned something from the link bellow about HOG but I cannot find the same proper link for HOF or MBH. Is there any syntax for HOF in openCV?
http://www.learnopencv.com/histogram-of-oriented-gradients/

I dont know about OpenCV, but find matlab implementations here.

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Is it possible to customize or create my own module/algorithm in Autonomous Driving Toolbox in Matlab? [closed]

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I would like to use the Autonomous Driving Toolbox in Matlab. But I prefer to know more abou it before I buy it. For instance, is it possible to customize some modules in the toolbox with some different algorithms than the default? For example, in the motion planning section of the toolbox, there's only one planner module provided by Matlab called "pathPlannerRRT" which implements the RRT algorithm for path planning, is it possible to create another customized planner with another or self-designed algorithm?

Reconstruct fractal in Apollonian Gasket style [closed]

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I wondered if the following picture can be reconstructed programmatically:
It seems it has some features of an Apollonian Gasket (see https://en.wikipedia.org/wiki/Apollonian_gasket) but also includes other pattern which I don't recognise.
Any ideas?
This picture is made with open source software Apophysis. It is a so called fractal flame - fractal structure made with ifs (iteration functions system).

Group Algebra in Matlab [closed]

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What is the best way to implement group algebra using Matlab. More specifically, I only want to work with permutation groups (and their subgroups) but would like a way to find kernels and cosets without coding a brute force version myself.
GAP is a 'System for Computational Discrete Algebra' and is able to do all the things requested in the question.

AFC Toolbox and converting pfiles to mfiles [closed]

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Has anyone ever worked with AFC toolbox?
Is there a way to convert pfiles to mfiles?
Never heard of the AFC toolbox, and no, you cannot reverse-engineer p-coded files back into MATLAB files, see http://www.mathworks.co.uk/help/matlab/matlab_prog/protect-your-source-code.html for more details.

C-DLL to be used by MATLAB? [closed]

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Since MATLAB is not good with loop, I am putting some of the looping into a c-dll(visual studio 6.0).
What do I have to do in building the c-dll that is different than
normal dlls?
How do I interface with the DLL from MATLAB?
I recommend making them into MEX-functions. Read the MATLAB help: http://www.mathworks.co.uk/help/techdoc/matlab_external/f29322.html.
And FWIW, MATLAB's fine at looping if you write your code well.