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Sven


University of Michigan

557 total contributions since 2006

Aussie living in the US. Engineering with MATLAB.

Some Interests:
-3D Volume Processing (CT, mri)
-Finite Element Analysis (human body simulation)
-Geometry Analysis (human body morphomics)
Professional Interests: Image processing, Finite Element Analysis, Human Body Biomechanics

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Contributions in
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Solved


Find the nearest prime number
Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...

21 hours ago

Solved


I Plead the Fifth
Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

21 hours ago

Solved


Spot the First Occurrence of 5
This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

21 hours ago

Solved


5 Prime Numbers
Your function will be given lower and upper integer bounds. Your task is to return a vector containing the first five prime numb...

21 hours ago

Solved


Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

22 hours ago

Solved


Is it really a 5?
A number containing at least one five will be passed to your function, which must return true or false depending upon whether th...

1 day ago

Solved


How to subtract?
* Imagine you need to subtract a few numbers using MATLAB. * You will not be using eval for this task. * Given two ASCII strin...

1 day ago

Responded


Re: How to open DICOM images different from demo images?
Hi Pablo, The error message gives it away: Perhaps the file isn't in your current directory but is in a folder somewhere? Th...

1 month ago | 390 views

Solved


When Was That Goal Scored?
We want to find out when the goals were scored in a particular soccer game. For each game, we are given a "Goal Event Data" XML ...

9 months ago

Solved


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

1 year ago

Answered
FaceAlpha of bar3 plot smaller than 1 ruins rest of the plot
Hi Sven, We don't have your data (and we don't even know which of your variables are matrices, which are vectors etc.), so we...

1 year ago | 0

Answered
how to make cropping for image ?
Hi Eliz, try this: % Read your original image Img1 = imread('http://www.mathworks.com/matlabcentral/answers/uploaded_fil...

1 year ago | 1

Answered
how to compare cell arrays of different lengths?
We can start with your input a = int64(1:3)'; out = num2cell(a); b = int64(1:4)'; out2 =num2cell(b); We will pr...

1 year ago | 1

| accepted

Answered
how to save all value of centoid of many object from one image ?
The centroid is not a scalar value. It has two components (X coordinate, Y coordinate), so you cannot assign it to a scalar vari...

1 year ago | 0

Submitted


inpolyhedron - are points inside a triangulated volume?
Test if 3d points are inside a mesh. Or, voxelise a mask from a surface. Mesh can be non-convex too!

2 years ago | 64 downloads |

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Question


Indexing via 3d array changed behaviour 2015a -> 2015b?
Hi all, just got 2015b, here's a strange one where indexing via a multidimensional array has a differently shaped output to prev...

2 years ago | 1 answer | 2

1

answer

Submitted


upsert(conn,tableName,fieldNames,keyFields,data, varargin)
If a data row already exists, UPDATE that row! If it doesn't exist, INSERT that row!

2 years ago | 0 downloads |

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Answered
Convert image into Patches of size 64*64 and get each patch
Hi Tahir, try this: I = imread('rice.png'); imSz = size(I); patchSz = [64 64]; xIdxs = [1:patchSz(2):imSz(2) imSz(...

2 years ago | 1

| accepted

Submitted


mpoly2mask - convert multiple polygons to a mask
Converts an object with multiple boundary contours to a logical mask

2 years ago | 12 downloads |

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Answered
Overlapping region of a single ROI is excluded by the mask
Hi Alessandro, When you say that you _"want to draw a closed ring shape with a single line"_, we might step-by-step reinterpr...

2 years ago | 0

Answered
Find strings that contain multiple substrings at the same time
Hi Sven, Here's how I would do it. It uses a call to *regexp* (you could also use *strsplit*) and one *cellfun*. The good thi...

2 years ago | 0

Answered
How can I replace a loop with arrayfun - problems with strrep
Hi Sven (congrats on the name), Here's a pretty direct way to do what you're trying to do. It uses regexp once and cellfun on...

2 years ago | 0

| accepted

Submitted


stlwrite(filename, varargin)
Export a variety of inputs (patch, surface) to an STL triangular mesh

2 years ago | 185 downloads |

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Question


Fit to just half a parabola
Hi there, I have some simple XY data, and I can fit a quadratic to it as follows: X = [25.4 30.48 35.56 40.64 45.72 5...

2 years ago | 0 answers | 0

0

answers

Submitted


deploypcode(source_dir, target_dir, varargin)
DEPLOYPCODE recursively searches a directory for .m files, creating encrypted .p files with .m help

3 years ago | 2 downloads |

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Answered
how can i remove object bigger than x pixel
Hi Lukasz, Here's an example that removes all objects greater than 1000 pixels in area. You probably have your own *BW* image...

3 years ago | 1

| accepted

Question


getframe difference in 2014b.... bug?
The following code run in 2014a and 2014b produces remarkably different results. I think it's a bug. figure('Position',[100...

3 years ago | 1 answer | 1

1

answer

Submitted


octree - partitioning 3D points into spatial subvolumes
OcTree recursively splits a large set of points into smaller subvolumes. A QuadTree but in 3D.

3 years ago | 48 downloads |

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Submitted


splitFV - split a mesh
Splits a 2D or 3D mesh defined by faces and vertices into separately connected mesh pieces.

3 years ago | 13 downloads |

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Answered
Question regarding matrix index
Hi jana, Try this: X = [1 2 3 4 5; 3 inf 5 7 inf; 5 6 7 inf inf; 2 3 4 9 1] [val, rowNum] = ...

3 years ago | 0

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