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Florian Morsch

FH Heilbronn

Active since 2018

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Video stabilization using point feature method
No, point feature extraction is, as the name says, the extraction of features of a point. You dont have a motion estimation from...

más de 3 años ago | 0

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how i can capture and then save many images using kinect camera at one time?
Right now you have a fixed N, in this case N=4 and if you run your code you will save the images to my_new1.png, my_new2.png, an...

más de 3 años ago | 0

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Get Real distance value in an image.
With a given reference its possible. Either calibrate your camera to that reference and dont move it afterwards or have a known ...

más de 3 años ago | 0

This depends on the object you want to detect, 40 pictures might not nearly be enough. Cascade object detector can only detect o...

más de 3 años ago | 0

Jumping from one random frame to another random frame with continuity.

más de 3 años ago | 1

Eliminate point of view effects on a surface before processing the image.
If you have the camera calibration toolbox at you hand you can simply use that to calibrate your camera with the checkerboard. ...

más de 3 años ago | 0

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HOW TO FIND OUT MAXIMUM TEMPERATURE FROM EACH FRAME(My video has 225 frames) USING MATLAB ?
See <https://de.mathworks.com/help/images/ref/mat2gray.html> mat2gray() converts a matrix to a grayscale image. If you have a...

más de 3 años ago | 0

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Hi, I am trying to put a box around the car and have it's confidence level placed on top of the box, how can I do that?
Error using insertObjectAnnotation Expected input number 3, POSITION, to be one of these types: numeric Instead its type w...

más de 3 años ago | 0

How can I get model coordinates from pixel coordinates, using an uncalibrated camera, if I know the model coordinates of a few pixels?
Lets assume you have point P=[X; Y; Z], then your camera coordinates of that point would be x'= X/Z and y'=Y/Z. You then project...

más de 3 años ago | 1

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Question about how to create cameraparams object

más de 3 años ago | 0

Hey there, I hava a question concerning tracking of dots in multiple pictures...

más de 3 años ago | 0

eyes and mouth edges from a Image
Take a look at this already asked question, the code there is nearly what you are looking for: <https://de.mathworks.com/matlab...

más de 3 años ago | 0

How to use vision.PointTracker with ImageLabeler?
The vision.PointTracker does, as the name implies, tracks points (with KLT-algorithm). <https://de.mathworks.com/help/vision/...

más de 3 años ago | 0

Specifications of Checkerboard for calibration for camera Calibration
Do you use the camera calibrator app from MATLAB? This makes it easy to calibrate the camera. The only thing you need to know...

más de 3 años ago | 0

Image processing while video streaming
If this is your code then of course you will only have shown the first picture, since there is no loop to show the new image. Yo...

más de 3 años ago | 1

How to perform Geometric Transformations on live images i.e., on video ?
Create a camera object. Create a video player object. Take snapshots in a loop and process them, then step through the pr...

más de 3 años ago | 1

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Question

MATLAB Coder global variable error
Im trying to use the MATLAB coder to generate code from my function. When i check for errors, i get a "Could not find initial...

más de 3 años ago | 0 answers | 0

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Differentiate cars and motorcycles in image processing
Depending on your surrounding it might be possible. You could use a cascade object detector and train it to recognize motorcy...

más de 3 años ago | 0

How can I take a snapshot from USB camera and then analyze it?
First install the support package "MATLAB Support Package for USB Webcams" ( <https://de.mathworks.com/matlabcentral/fileexchang...

más de 3 años ago | 1

how to find which portion of the image having high contrast ?
You might want to take a look at this: <https://de.mathworks.com/help/matlab/ref/colormap.html> Also all your questions subm...

más de 3 años ago | 0

what is wrong with this code??
imshow(insertObjectAnnotation(J1, 'rectangle', bboxes, labels)); <https://de.mathworks.com/help/vision/ref/insertobjectanno...

más de 3 años ago | 0

processing on a live webcam streaming video???
You way to do it would be: 1: Create a webcam object EDIT: or create a cam object 2: You can get screenshots/snapsho...

más de 3 años ago | 0

Can I undo undistortImage?
I would not recommend to try this. When you use undistortImage, some information might get lost due to the process. If you now t...

más de 3 años ago | 0

how can I measure the distance between camera and object usingle single camera
Without a properly calibrated camera and a reference object of some sort this is not possible. You can estimate the distance wit...

más de 3 años ago | 2

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Camera calibration using camera extrinsic parameters
You can use the Camera Calibration App: <https://de.mathworks.com/help/vision/ug/single-camera-calibrator-app.html> Or you ca...

más de 3 años ago | 0

¿Why the webcam changes its parameter everytime i start running the code?
This is normal behavior of most cameras. They have initial starting values which are used when you connect the camera. Now i...

más de 3 años ago | 0

How can I convert pixel coordinate to micrometer in x and y axis in an image?
Your idea is correct. Take a reference object from which you know the exact measurements and convert that to the pixel lenght. N...

más de 3 años ago | 0

How read multiple image to Matlab memory
You could use the the Image Batch Processor if you have it at hand: <https://de.mathworks.com/help/images/batch-processing-usin...

más de 3 años ago | 0

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I want to load a video and extract frames from it, save them and then use rgb2gray, edge detection and matching on specific frames...what will be the MATLAB commands for it??