Stefan Karlsson

Halmstad University

Last seen: 3 mesi fa | Attivo dal 2012

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Post doc in Image analysis/computer vision/biometrics Professional Interests: signal processing, biometrics, image analysis, computer vision

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Tutorial and Toolbox on real-time optical flow
Code with visualization and excercises. Camera supported

oltre 3 anni fa | 8 download |

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[DEPRECATED] What frustrates you about MATLAB?
I miss the ability to define your own workspace. When doing event driven programming in Matlab, there are 3 ways to share your o...

oltre 7 anni fa | 0

Risolto

Is my wife right?
Regardless of input, output the string 'yes'.

circa 8 anni fa

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FancyFlowPlayer
Video Player with visualization and interactive reading.

circa 8 anni fa | 6 download |

Inviato

Interactive Incompressible Fluids (Karlsson version)
An interactive demo of Navier-Stokes equations for incompressible fluids.

circa 8 anni fa | 1 download |

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Global workspace usage for efficiency?
Walters good points above are not an answer to my question. Let me try to give my point of view on this, and then anyone can fee...

circa 8 anni fa | 0

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Global workspace usage for efficiency?
*Are there cases when using global variables is the most efficient implementation?* I hate using the global workspace, but I ...

oltre 8 anni fa | 2 risposte | 0

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Can I use PCA effectively on a greyscale image?
... I guess one can also give another piece of advice to anyone who stumbles onto this looking for info on PCA. Read the posts b...

oltre 8 anni fa | 0

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Can I use PCA effectively on a greyscale image?
I think the answer by Walter, while technically correct, confounds a VERY simple topic. Being technically correct here amounts t...

oltre 8 anni fa | 0

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Scale a mask in an image
use imresize. If you use it with interpolation 'nearest', you have your functionality in a single line. If you use another inter...

oltre 8 anni fa | 1

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Real time optical flow, and video processing
Real time optical flow, and video processing, with support for camera input in Matlab.

oltre 8 anni fa | 2 download |

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timer and Interruptible=Off button callback priority/preemption?
Sometimes I get into the problem that I am in a function that is not interuptible. An ugly work-around that seems to work (o...

oltre 8 anni fa | 0

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Save data X over Y
Poorly asked question. Do you get 2 new X and Y matrices by regular intervals, or is time-dependency something represented by t...

oltre 8 anni fa | 0

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Which way is correct of defining function...I am getting two differnt surfaces if I specify same equation differently...?
There are 2 interpretations of your shared code (i.e. two ways i see that you would be able to run it without error). 1. you ...

oltre 8 anni fa | 0

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GUI figure focus
Seems this is still an issue, here is my solution quick fix: %takes any active uiobject as input, and returns keyboard fo...

circa 9 anni fa | 0

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Visual Studio Toolbar for mex interface with video tutorial
Seamless interface, VS 2010 and 2012 and Matlab for MEX. Video linked to step you through.

oltre 9 anni fa | 2 download |

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[DEPRECATED] What frustrates you about MATLAB?
topping the wish-list: 1. A "beep off" that actually works, stops Matlab completely from making the OS beep sound. 2. A sh...

quasi 10 anni fa | 0

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

circa 10 anni fa

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Optical Flow with Matlabs Computer vision toolbox
optical flow on camera, synthetic video and video files

circa 10 anni fa | 4 download |

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

circa 10 anni fa

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

oltre 10 anni fa

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

oltre 10 anni fa

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

oltre 10 anni fa

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

oltre 10 anni fa

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

oltre 10 anni fa

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Add two numbers
Given a and b, return the sum a+b in c.

oltre 10 anni fa

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

oltre 10 anni fa

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

oltre 10 anni fa

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

oltre 10 anni fa

Inviato

VideoResize
A MUCH faster version of "imresize", specifically for videoprocessing

oltre 10 anni fa | 1 download |

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Stefan Karlsson

Halmstad University

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