Anton Semechko

Last seen: 約1ヶ月前 | 2012 年からアクティブ

Followers: 1 Following: 0

メッセージ

Biomedical/R&D engineer with 10+ years of academic + industry experience and avid user of Matlab for 15+ years. Enjoy problem-solving and working on projects related bio-signal processing, medical and microscopy image processing, computational anatomy, and machine learning.

Spoken Languages:
English
Pronouns:
He/him

統計

All

バッジを表示

Feeds

質問

Where is the search bar on the Matlab File Exchange website?
This is more of a recommendation to the MathWorks website developers rather than a quesiton. I don't use File Exchange (FEX) of...

5ヶ月前 | 1 件の回答 | 0

1

回答

送信済み

Detect outliers in multivariate datasets
Compute robust estimates of mean and covariance, and flag potential multivariate outliers

約3年前 | ダウンロード 1 件 |

送信済み

IsoCut
Extract/visualize level set(s) of a scalar field defined at the vertices of a surface mesh

3年以上前 | ダウンロード 3 件 |

送信済み

Particle tracking on a sphere
Fast particle tracking and ray-triangle intersection queries on triangular meshes of a unit sphere

3年以上前 | ダウンロード 1 件 |

送信済み

Fast fuzzy c-means image segmentation
Segment N-dimensional grayscale images into c classes using efficient c-means or fuzzy c-means clustering algorithm

3年以上前 | ダウンロード 14 件 |

送信済み

Exact histogram equalization and specification
Perform exact histogram specification or equalization of 2D grayscale images

3年以上前 | ダウンロード 8 件 |

送信済み

DecimatePoly
Simplify a 2D closed contour/polygon to within user-defined boundary offset tolerance

3年以上前 | ダウンロード 2 件 |

送信済み

Exact minimum bounding spheres and circles
Compute exact and approximate minimum bounding spheres/circles of 3D/2D point sets

3年以上前 | ダウンロード 9 件 |

送信済み

Suite of functions to perform uniform sampling of a sphere
Toolbox for generating uniform sampling patterns and decompositions of a unit sphere

3年以上前 | ダウンロード 13 件 |

送信済み

Rigid body parameters of closed surface meshes
Fast computation of exact rigid body parameters of closed triangular surface meshes using divergence theorem

3年以上前 | ダウンロード 3 件 |

質問

none of the axes interactions are working in axes embedded in a UIFigure panel
Problem: The interactions of an axes object embeded in a UIFigure panel are not working. The interactions I am trying to add to ...

3年以上前 | 0 件の回答 | 0

0

回答

回答済み
PCA on high dimensional data
A 13952736-by-104 data matrix (with observations along rows and variables along columns) will take up 13952736*104*8/2^30 =...

6年以上前 | 0

| 採用済み

回答済み
Fitting scattered data to multiple cosine functions
Below is an example where I use brute-force search to find an optimal set of sinusoid parameters that best fit an unorganized da...

6年以上前 | 2

| 採用済み

回答済み
imshow() not working
Use syntax: imshow(im,[]) when im has non-integer format. Or just do this: im = imread('/MATLAB Drive/My Project/ima...

6年以上前 | 3

| 採用済み

回答済み
distance of points to points calculation
Use <https://www.mathworks.com/help/stats/knnsearch.html#namevaluepairarguments 'knnsearch' function>. For example: [idxA,D_...

6年以上前 | 0

| 採用済み

回答済み
How is the number of bins chosen with the auto binning algorithm in histcounts?
'histcounts' first estimates width of the histogram bins using 'scottsrule': rawBinWidth = 3.5*std(data)/(numel(data)^(1/3...

6年以上前 | 1

| 採用済み

回答済み
Barycentric Coordinates of a spherical triangle
This can be done in four steps: 1) Compute linear transformation (T) that maps triangle A to its counterpart B on the sphere....

6年以上前 | 0

回答済み
How do I use a .lut file (or the equivalent in MATLAB) to reference pixels in a grayscale image and assign them new values for pseudocoloring based on the LUT?
There is a Matlab function that maps gray values to RGB values using custom made look-up-tables. Its called 'ind2rgb': <https://...

6年以上前 | 0

| 採用済み

回答済み
Transformation of the complex plan: Conformal Mapping
Modified code ('conformal_map_demo') is attached below. In principle, this piece of code should should allow you to visualize an...

6年以上前 | 3

回答済み
How to sum each column element of one matrix with all column elements of another matrix?
Do kron([a b;c d],[1;1]) + kron([1;1],[i j;k l]) Here is an example using symbolic expressions syms a b c d i j k l...

6年以上前 | 0

| 採用済み

回答済み
Generating sets of non repeating random numbers
Here is an example: S=reshape(randperm(40),[],4); All elements in S will be in the range [1 40] and unique. From this it...

6年以上前 | 1

回答済み
3D plane plotting restricted by 3 points
Equation of a plane is determined uniquely by any 3 (noncollinear) points lying on the plane. Based on your question, it sounds ...

6年以上前 | 0

| 採用済み

回答済み
Could anyone help me with extracting similar features( to be used as corresponding points)in two images which need to be registered together?
Hey, Poupack, here is <https://drive.google.com/open?id=1SRXAVFkbHPfQ9jLjsFL-fkfWz2KrKJAO link> to a function ('pairwise_his...

6年以上前 | 0

| 採用済み

回答済み
How can I extract the slices of a 3D matrix in x-direction from a 3D matrix?
Suppose you have G, which is a Y-by-X-by-Z 3D array, then i-th xy slice: G_yx=G(:,:,i); % Y-by-X array i-th xz slice...

6年以上前 | 2

| 採用済み

回答済み
Multivariate nonlinear regression model fitting
If the function you are trying to fit is linear in terms of model parameters, you can estimate these parameters using linear lea...

6年以上前 | 1

| 採用済み

回答済み
How to export 3D spheres (3D plot) generated in Matlab to ANSYS or Abaqus. ?
The builtin 'ellipsoid' and 'sphere' functions produce bad quality meshes (in terms of element shapes and connectivity of the ve...

6年以上前 | 1

回答済み
Is there a way to open music and play it?
Yeah, there is a way. Here is an example: % Get sample audio file from the web [y,Fs]=webread('http://www.worldnationala...

6年以上前 | 1

| 採用済み

回答済み
How do I compute the maxpool of a image? Let us say stride of 2,2 on a mxn matrix?
Here is an example: % Sample image im=imread('cameraman.tif'); % sample image % 4 pixels comprising non-overlappi...

6年以上前 | 0

回答済み
How do I plot a plane that has points of different values?
Actually, based on the sample picture you provided, you have a total of 17x21 grid points, and total number of cells in the g...

6年以上前 | 2

| 採用済み

回答済み
Obtain Number of Pixels in Area Around Binary Image Object
To distinguish between points/pixels inside the ellipse vs. those outside, you need to know parameters of the ellipse. Here is a...

6年以上前 | 0

| 採用済み

さらに読み込む

Anton Semechko

統計

MATLAB Answers

MATLAB Answers

Cody

Cody

File Exchange

File Exchange

File Exchange

File Exchange

File Exchange

File Exchange

File Exchange

MATLAB Answers

Feeds

1

0