Swati Jain
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Why Coherence function is one when we consider full length of signal (without segmentation) ?
Hi everyone, I am trying to understand coherence function and its calculation. I am completely new to it and kind of confuse wi...
fast 4 Jahre vor | 0 Antworten | 0
0
AntwortenPlot a 3D matrix for a three-dimensional object
For future if someone come across same issue: One can use pchow https://www.mathworks.com/help/vision/ref/pcshow.html and sc...
etwa 4 Jahre vor | 1
Frage
How does mscohere calculate output frequency cord when no input frequency cord is given??
Hi, I am trying to work with mscohere for the first time and I don't understand how does it calculates the output frequqncy whe...
etwa 4 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How to Take Inverse Fourier Transform?
Hi, I am trying to take inverse Fourier transform of the Fourier transform of a step profile. Attached is my code and the data....
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to fit a curve to a step function?
Hi, I am trying to fit curve to a step function. I tried no. of approaches like using sigmoid function,using ratio of polynomia...
fast 5 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
How to fit a polynomial to a step function??
Hi, I have a noisy step from a scnner result. Is there any way to fit a higher order polynimial to step ? I am not sure which p...
etwa 5 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to calculate spatial frequency after taking fft in case of oversampling?
Hi, I am calculating Fourier transform of an image. Width of each pixel is 0.004 mm. I re-sample my image at every pixel ...
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Circle Fit at the Corner of the Step??
Hi, I have a step curve (figure 1) and I want fit a circle to each corner of step (shown in figure 2). I wrote the followin...
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How to select a region of interest (ROI) from 3-d point cloud data?
Hi, I want to select a rectangular region from my 3-d point cloud data (.asc file format). I applied two approaches to do tha...
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How to rotate a figure in MATLAB?
Hi, I generated a figure of step through imagesc with x,y and z values. x and y are a column vectors and dimensions of x is n...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to convert local coordinate to Global Coordinate of a 3d plane?
Hi, I have a 3d plane with equation: z+0.898x-0.443y=452, I got this equation by plane fit. This plane is inclined at a crazy...
mehr als 6 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How to extract data of lower surface only in a step profile?
Hi, I have a 3-D plot of step function and want to extract data of lower surface only. I tried to literally read the data of ...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to fit Plane (z=ax+by+c) to 3D point cloud data?
Hi, I am trying to do plane fit to 3D point data. Point cloud file is attached. Here is my code I tried using least square met...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Plane fit (z=ax+by+c) to 3D point data
Hi, I have step plot (attached) and I want to fit a plane on the lower terrace of it. Excel file of point cloud is attached a...
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How to extract data from ".asc" files in MATLAB??
Hi, In my work I have to scan any object from fringe projector and then I will have a '.asc' file with 6 columns. I am assumi...
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Calculation of pixel shift
Hi, I have a slated edge image and I want to know the value of required pixel shift to make it vertical. I know the pixel va...
mehr als 6 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
Step function with a slanted edge
Hi, I want to write a code for a step function with its edge slanted at a small angle. I could write a code for simple step f...
mehr als 6 Jahre vor | 1 Antwort | 0