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William Thielicke


OPTOLUTION Messtechnik GmbH

Last seen: Today Active since 2008

Personal website: http://William.Thielicke.org Company website: http://www.Optolution.com Professional Interests: Animal locomotion, flow measurement techniques, micro air vehicles, robotics

Programming Languages:
Python, MATLAB, Visual Basic
Spoken Languages:
English, French, German
Professional Interests:
Image Processing Toolbox, Image Acquisition Toolbox

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  • MATLAB Central Treasure Hunt Finisher
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  • Personal Best Downloads Level 5
  • Thankful Level 3
  • GitHub Submissions Level 1
  • Editor's Pick
  • First Review
  • 5-Star Galaxy Level 5
  • First Submission
  • Knowledgeable Level 1
  • First Answer

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Submitted


PIVlab - particle image velocimetry (PIV) tool with GUI
Easy to use, GUI based tool to analyze, validate, postprocess, visualize and simulate (micro) PIV data. Optional parallel comput...

18 days ago | 1082 downloads |

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Check code compatibility with older releases
Hi, I am wondering if there is a more or less efficient way to check backwards compatibility. Here is an example: I am using thi...

1 month ago | 2 answers | 0

2

answers

Question


Finding nice color bar limits automatically
Dear all, I have a plot with a colorbar. The limits of the color bar can't be adjusted automatically, because the plot is a bit ...

2 months ago | 1 answer | 0

1

answer

Question


ROI with hole, convert back to logical
Hi, I have a task that has probably been asked before, but I do not find something about this issue. I have a binary mask that...

4 months ago | 0 answers | 1

0

answers

Answered
How can i edit the points of a saved ROI?
I think I found the solution: figure imshow(imread('baby.jpg')) roi = images.roi.AssistedFreehand(Color="y"); draw(roi) The...

4 months ago | 0

Answered
Best way to export image / animation from GUI, including colorbar
I think I am close to a good solution: The function that does all the plotting / imagesc / scatter in the uifigure got an addit...

4 months ago | 0

Question


Best way to export image / animation from GUI, including colorbar
Hi, am am trying to export a graphics file from a uifigure. The plot has several layers and elements, and also features a colorb...

4 months ago | 1 answer | 0

1

answer

Question


Mac and Linux users, please support me with a very simple task (VideoWriter.getProfiles())
Dear Mac and Linux users, I am currently enhancing a piece of GUI software (PIVlab), and I want to allow the users to select one...

4 months ago | 1 answer | 0

1

answer

Answered
Image acquisition toolbox: Predict how many imgs can be buffered in RAM?
I found a solution. Here is the function that I use: function [max_possible_images] = PIVlab_capture_max_possible_images(ROI,bi...

6 months ago | 0

| accepted

Answered
try...catch for memory full error in imaq toolbox ?
I am getting a bit closer, I am able to display a messagebox with a suitable hint: clc imaqreset delete(imaqfind); %clears al...

12 months ago | 0

Question


try...catch for memory full error in imaq toolbox ?
Hi, I am recording data with an usb3vision camera. I am directly capturing to RAM. After a while, the memory of the computer is...

12 months ago | 4 answers | 0

4

answers

Question


Image undistortion with fixed camera position and single calibration image
Dear all, I want to undistort an image. The camera is fixed on a tripod. The camera captures the reflected light of particles w...

1 year ago | 2 answers | 0

2

answers

Question


Image acquisition toolbox: Predict how many imgs can be buffered in RAM?
Hello, I am looking for a way to predict how many frames (approx.) I can capture to the RAM of my computer using the image proc...

1 year ago | 2 answers | 0

2

answers

Question


Speed improvement of repeated cross-correlation of an "almost same area" ?
Hi, my question is probably more a mathematical one: I am calculating a cross-correlation of two sub-images to determine a disp...

1 year ago | 1 answer | 0

1

answer

Submitted


Keyword occurance in academic papers (google scholar)
This function gets the amount of hits for a specific keyword per year, using google scholar. Inspired by https://zenodo.org/reco...

2 years ago | 1 download |

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Answered
Deblur image that has locally varying (but well known) motion blur
Dear Bjorn, thanks for your reply! I had a look at your code, but I think it will take me some more time to understand if I can ...

2 years ago | 0

Question


Deblur image that has locally varying (but well known) motion blur
Hi, I have an image where motion blur occurs due to long exposure photographing. I know the amount of motion blur for each pixel...

2 years ago | 3 answers | 0

3

answers

Question


Colorbar range inconsistent in high aspect ratio images
Hi, I am certainly doing sth wrong, but I wonder why Matlab displays different colormap limits when I change the colormap locati...

2 years ago | 1 answer | 0

1

answer

Answered
How can I open MATLAB data files in the PIVlab app?
PIVlab sessions can only be opened in PIVlab. If you want to work in MATLAB, you can export the results as mat file from PIVlab....

2 years ago | 0

| accepted

Answered
imagesc: how to set NaN as white color
As this is still the first hit when searching on Google... The best solution IMHO: Setting data that is NaN to transparent se...

2 years ago | 5

Submitted


Webcam Realtime Motion Tracker
Example of how to track space-resolved motion in realtime from a webcam video stream.

2 years ago | 3 downloads |

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Question


Sudden drop in speed for large matrices. RAM full -> Prevention?
Dear all, I am doing image analyses with a toolbox called "PIVlab". At work, we recently bought a new camera with 25 MP resolut...

2 years ago | 0 answers | 2

0

answers

Question


cell2mat -> operation -> mat2cell : How...?
Hi, I have a cell aray that I need to convert to a 3D matrix, perform some operation, and then convert it back to the original c...

2 years ago | 1 answer | 0

1

answer

Question


imwrite 12bit data?
Hello, I have a camera that gives me grayscale 12bit images. They are quite big, and the framerate is quite high, so I would lik...

2 years ago | 0 answers | 0

0

answers

Question


FEX: How to add links in the overview text?
Hello, I would like to have the text in my Matlab submission appear as a hyperlink: https://de.mathworks.com/matlabcentral/file...

2 years ago | 0 answers | 0

0

answers

Answered
'Clipping' the quiver plot
When anything uses "axis image", then it is not possible to disable clipping anmore... Is this desired behaviour? figure; imag...

2 years ago | 0

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 years ago

Question


Best Matlab Editor replacement?
Is there a way to replace the MATLAB Editor? I think it is hardly better than windows notepad, which appears a bit ridiculous fo...

3 years ago | 4 answers | 4

4

answers

Question


Core i7/i9 and Ryzen 7/9 and Threadripper etc owners: Please test your speed with my script. Looking for the suitable CPU for a Matlab computer
Hi, I know that this question has been asked very often. But me too, I am looking for the fastest computer to run some very spec...

3 years ago | 0 answers | 0

0

answers

Answered
Practical way to have multiple "drawrectangle" and work with them
Ok, I found something in the help: hfhs = findobj(gca, 'Type', 'images.roi.Rectangle') Calling this just before starting the t...

3 years ago | 0

| accepted

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