Stefan Karlsson

Halmstad University

Last seen: 4ヶ月前 | 2012 年からアクティブ

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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

3年以上前 | ダウンロード 6 件 |

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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...

7年以上前 | 0

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

約8年前

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FancyFlowPlayer
Video Player with visualization and interactive reading.

約8年前 | ダウンロード 6 件 |

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

約8年前 | ダウンロード 1 件 |

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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...

8年以上前 | 0

質問

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 ...

8年以上前 | 2 件の回答 | 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...

8年以上前 | 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...

8年以上前 | 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...

8年以上前 | 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.

8年以上前 | ダウンロード 2 件 |

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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...

8年以上前 | 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...

8年以上前 | 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 ...

8年以上前 | 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...

約9年前 | 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.

9年以上前 | ダウンロード 2 件 |

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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...

10年弱前 | 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...

約10年前

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

約10年前 | ダウンロード 4 件 |

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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...

約10年前

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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 ...

10年以上前

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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...

10年以上前

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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.

10年以上前

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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 ...

10年以上前

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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...

10年以上前

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

10年以上前

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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 ...

10年以上前

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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...

10年以上前

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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:...

10年以上前

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

10年以上前 | ダウンロード 1 件 |

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Stefan Karlsson

Halmstad University

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