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Florian Morsch


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49 2018 年以降の合計貢献数

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  • 3 Month Streak
  • Knowledgeable Level 2
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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...

2年以上 前 | 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...

2年以上 前 | 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 ...

2年以上 前 | 0

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

2年以上 前 | 0

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Jumping from one random frame to another random frame with continuity.
Use the video file reader <https://de.mathworks.com/help/matlab/import_export/read-video-files.html> to get your frames from the...

2年以上 前 | 1

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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. ...

2年以上 前 | 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...

2年以上 前 | 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...

2年以上 前 | 0

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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...

2年以上 前 | 1

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Question about how to create cameraparams object
You already linked the answer to your question: <https://www.mathworks.com/help/vision/ref/cameraparameters.html> If you get...

2年以上 前 | 0

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Hey there, I hava a question concerning tracking of dots in multiple pictures...
Here are some links which might help you: <https://de.mathworks.com/help/vision/ref/vision.pointtracker-system-object.html> ...

2年以上 前 | 0

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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...

2年以上 前 | 0

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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/...

2年以上 前 | 0

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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...

2年以上 前 | 0

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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...

2年以上 前 | 1

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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...

2年以上 前 | 1

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質問


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...

2年以上 前 | 0 件の回答 | 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...

2年以上 前 | 0

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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...

2年以上 前 | 1

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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...

2年以上 前 | 0

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

2年以上 前 | 0

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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...

2年以上 前 | 0

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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...

2年以上 前 | 0

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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...

2年以上 前 | 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...

2年以上 前 | 0

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¿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...

2年以上 前 | 0

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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...

2年以上 前 | 0

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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...

3年弱 前 | 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??
To load a video: videoFileReader = vision.VideoFileReader('Video.avi'); Take a frame from the video: videoFrame = step(v...

3年弱 前 | 1

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how can i acess single lens/camera of a stereo camera in matlab?
If you can take split images for left and right just do that and add them up to your own video stream. You can run a loop, wi...

3年弱 前 | 1

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