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Sean


Karl Storz Endovision Inc

Active since 2011

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Excessive median processing time
I have found that taking the median with respect to time of a group of image frames can take excessively long and is dependent o...

12 years ago | 1 answer | 0

1

answer

Solved


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...

12 years ago

Solved


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 ...

12 years ago

Question


Processing all subsets of a larger matrix
I have data in the form of MxNx3xK or MxNx3xKxJ types of matrices. If I wanted to use a function that takes an array of 3 value...

12 years ago | 1 answer | 0

1

answer

Answered
How to check if data is normally distributed
Hello Nancy, You cannot tell from only 2 samples whether they are normally distributed or not. If you have a larger sample s...

12 years ago | 1

Answered
Plotting a polynomial that has fractions
This question doesn't clearly define your problem, so I or others will have a hard time answering you definitively. # If you ...

12 years ago | 1

| accepted

Question


Loading data in the background?
I have a set of code that does the following: # Load a set of data # Display the data # Wait for the operator to make a jud...

12 years ago | 1 answer | 0

1

answer

Answered
callback function handle syntax inside objects?
I have found a way to accomplish what I was trying to accomplish, although it isn't by using function handles. In case anyone e...

12 years ago | 0

Question


callback function handle syntax inside objects?
I have an object that generates a gui and controls some external equipment. I am trying to set things up so that a particular b...

12 years ago | 1 answer | 1

1

answer

Question


General Handle Removal
I am looking for a better way to close out/clean up handle references. Specifically: 1) 'Clear' removes the variable holding...

12 years ago | 1 answer | 0

1

answer

Question


How can I trigger activity in a top level gui from a timer in a lower level object?
I have an object that is polling status from a piece of equipment at regular intervals. It is doing this by starting a timer at...

12 years ago | 1 answer | 0

1

answer

Answered
How to compute RMS of three-phase voltage
I looked at the article you referenced. They appear to be feeding four parameters into a neural network: voltage@f1, current@f1...

12 years ago | 0

Question


Timer precedence during called functions
Hello, I have a timer that is pulling in video frames as a preview in a GUI. Unfortunately, I have found that if I call othe...

12 years ago | 3 answers | 2

3

answers

Question


Timer function in OOP object constructor not working as expected
Hello, I have some oop code that talks to an instrument over a serial port. I want to continually monitor for and handle mes...

13 years ago | 2 answers | 0

2

answers

Question


Compiled matlab executables not working correctly with java archives
I have several programs that I wrote in matlab that use external custom java archives. The programs work fine on my computer (w...

13 years ago | 1 answer | 0

1

answer

Question


3D ellipsoid closest fit estimation (as a way to characterize lens rolloff)
I am currently working with a number of lenses and need to be able to calculate and correct for the rolloff in an arbitrary part...

13 years ago | 1 answer | 0

1

answer

Answered
creating a histogram in a specific way
Are you trying to bin on a log scale or are you trying to bin to arbitrary values? If you are trying to do the first, you m...

13 years ago | 0

Question


How can I remove a variable from the parent workspace while a function is using it?
I work with fairly large datasets, so the fact that they get duplicated when a function accepts them as an input can be a proble...

13 years ago | 2 answers | 0

2

answers

Question


Apparent imshow memory leak?
Hello, I have some code that captures and displays images repeatedly for some time, and I noticed that it continually eats up m...

13 years ago | 3 answers | 1

3

answers

Question


GUI operations on matlab objects (non-GUI)
I am having difficulty updating an object that I am using in a GUI callback. I am sure there must be a good way around it that ...

13 years ago | 2 answers | 0

2

answers

Question


Issues with callbacks and large handle structures?
I am working on a gui, and encountered a strange problem. When I pass 'h' to a uicontrol callback and put a breakpoint in the c...

13 years ago | 1 answer | 0

1

answer

Answered
Failure to release memory when releasing java objects
After much investigating: Some of the memory can not be freed up because it is allocated to external .dlls that don't bother ...

13 years ago | 0

| accepted

Question


Failure to release memory when releasing java objects
(EDITTED... PLEASE SEE COMMENT FOR UPDATED QUESTION) I have a couple of java .jars that I am using to control a camera and fram...

13 years ago | 2 answers | 0

2

answers

Question


Can class/object parameters store structs? If not, is there an equivalent?
I am trying to usefully name internal state variables in a class I am writing (disclaimer: I started doing objected oriented cod...

13 years ago | 2 answers | 0

2

answers

Answered
Simulating transfer functions in MATLAB?
Hello Jesse, Are the lines you are looking at linear? If they are sampled at different intervals/points, you could still do ...

13 years ago | 0

Question


Typecasting higher dimension matrices
I recently found (to my chagrin) that the typecast function only works on scalars and 1D matrices (i.e. arrays). Does anyon...

13 years ago | 2 answers | 0

2

answers

Question


Java .dll library path issues
I am trying to use a java archive(.jar) which makes use of a number of external .dlls to control a PCI video framegrabber card. ...

13 years ago | 1 answer | 0

1

answer

Answered
image processing
Ganesh, If you are trying to observe the change in each parameter over time (i.e. from image 1 to image 100), just use a for ...

13 years ago | 0

| accepted

Question


How can I detect islands in a contour plot?
I am trying to detect abnormalities in data with respect to two variables. (Imagine an smoothly varying image where you are try...

13 years ago | 1 answer | 1

1

answer

Question


Inline Indexing to Dynamic Field Names
How can I integrate and *index* function output into dynamic field names? Example: Say function y=fun(x) *outputs an array of...

13 years ago | 2 answers | 0

2

answers

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