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Detect and Track Multiple Faces
Detect and track multiple faces from live video.
más de 9 años hace | 4 descargas |
rectifyStereoImages is cutting off too much of my image
Set 'OutputView' to 'full', when you call rectifyStereoImages.
más de 9 años hace | 0
Ambiguous Disparity Map and Inadequate 3D Scene Reconstruction
Hi Yildiray, There are several problems with your calibration: # The checkerboard is not really flat. You have to glue it ...
más de 9 años hace | 1
| aceptada
Camera Calibration for measuring planar object
Not sure what you are asking... You would need to write your own code to detect the object of interest. If it has a distinctive ...
más de 9 años hace | 0
Robust background substraction in outdoor environment
Use |vision.ForegroundDetector| from the Computer Vision System Toolbox.
más de 9 años hace | 0
how can i save the image and roi to train classifier
Try using the <http://www.mathworks.com/help/vision/ug/label-images-for-classification-model-training.html Training Image Labele...
más de 9 años hace | 0
Error in the code
I am guessing that your image is M-by-N-by-3 (RGB). |detectSURFFeatures| only takes M-by-N grayscale images. Convert your images...
más de 9 años hace | 0
Why does my videoplayer hang at the first frame while streaming live camera.
Sounds like the size of your frame has changed. Most likely it went from being M-by-N grayscale to M-by-N-by-3 RGB or vice versa...
más de 9 años hace | 2
| aceptada
How to connect Kinect 2 with MATLAB image acquisition tool?
Image Aquisition Toolbox now <http://www.mathworks.com/hardware-support/kinect-windows.html supports Kinect v2.>
casi 10 años hace | 1
| aceptada
How can I calculate the actual distance in real world of an object from its picture that picked up by a camera?
With one camera, you may be able to compute the distance if you have a calibrated camera, and you know the actual size of the ob...
casi 10 años hace | 0
help me solve this error detectSURFFeatures
|detectSURFFeatures| only works on grayscale images. Use |rgb2gray| to convert |I| to grayscsle.
casi 10 años hace | 0
| aceptada
How to use calibration parameters from KITTI?
The file |calib_cam_to_cam.txt| contains parameters for 3 cameras. * S_0x: is the image size. You do not really need it for ...
casi 10 años hace | 0
| aceptada
Problem with Computer Vision tool box
Hi Ali, Try the following: Go to "Preferences". Select "Image Processing Toolbox" on the left. Uncheck "Enable hardware op...
casi 10 años hace | 2
| aceptada
is there an algorithm of matching based on intensity information
Actually, you are not quite right. What you typically match are SURF descriptors, which are based on gradient orientation distri...
casi 10 años hace | 0
Vision Toolbox Question: Is there a way to access the z-coordinate from the camera calibration process?
Hi Thomas, In the checkerboard's coordinate system the points on the checkerboard all have z=0. If you want the checkerboard ...
casi 10 años hace | 1
| aceptada
How to extract shape characteristics from an image?
|regionprops| function in the Image Processing Toolbox can compute various shape characteristics of regions, such as area, perim...
casi 10 años hace | 0
How to save a point cloud object??
Hi Priya, This confusion is an unfortunate result of a name conflict. |reconstructScene| returns an M-by-N-by-3 array of xyz...
casi 10 años hace | 2
| aceptada
In two processed images, one shows 3 centroids and another shows 4 centroids. How to eliminate this extra centroids from centroids array.
Hi Naseeb, The |triangulate| function can return reprojection errors, which can tell you whether or not a match is correct.
casi 10 años hace | 0
| aceptada
Feature Based Panoramic Image Stitching
Hi Alex, |fullfile| is a function to create a path to your image folder. It simply concatenates the strings you give it with ...
casi 10 años hace | 1
| aceptada
Error "Subscript indices must either be real positive integers or logicals" on a matlab based example
This error means that |matchFeatures| didn't find any matches and |indexPairs| is empty. If it is expected that sometimes you do...
casi 10 años hace | 0
| aceptada
Foreground Detection Using GMM on Depth Images
The |step| method of |vision.ForegroundDetector| takes an image, which can come from anywhere. So you can just read your depth m...
casi 10 años hace | 0
How can I calculate area of target object with Calibrated Camera
That would depend on the object. If it is circle, and you can measure its diameter, then you can calculate its area as pi*r^2. I...
casi 10 años hace | 0
Hi, I doing a project that load a roadsigns.mat, which a exported from Image Lableler. Can someone help me to fix the error below ?
You should export the ROIs using the "Export" button. That will create a variable in the workspace that you can pass into trainC...
casi 10 años hace | 1
| aceptada
I calibrated my camera using Camera Calibration app,How do i apply it to my camera for further use
If you click the "Export" button on the app, it will export a |cameraParameters| object to your workspace. There is a variety of...
casi 10 años hace | 0
| aceptada
How to use undistortImage function ?
Hi Lise, You have three different questions here. Let's take them one at a time: # *Crash when using undistortImage.* Ca...
casi 10 años hace | 0
A toolbox to recognize object/faces in a video
If you are still working on this, try the <http://www.mathworks.com/matlabcentral/fileexchange/47105-detect-and-track-multiple-f...
casi 10 años hace | 0
| aceptada
Intensity based background subtraction for effective object detection
Try using |vision.ForegroundDetector| object in the Computer Vision System Toolbox.
casi 10 años hace | 0
How to map the disparity image values to the original image?
You would have "un-rectify" the image, and there is no easy way to do that because rectification is a non-linear transformation....
casi 10 años hace | 0
Point Cloud Reconstruction From Disparity Map Not Working
Hi David, Can you please post your disparity map and the |stereoParameters| object? Also, it would help if you could post the...
casi 10 años hace | 0
