hayley's profile - activity

In CameraCalibrationActivity.java (line 200), by commenting out line 200 and 202, I was able to start seeing variables f

Thanks @opalmirror, that is a good point. In CameraCalibrator.java (line 126), I have tried both options: Calib3d.findCi

Thanks @opalmirror, that is a good point. In CameraCalibrator.java (line 126), I have tried both options: Calib3d.findCi

@berak, OpenCV site says that 3.4.3 was updated on 2018-08-29: https://opencv.org/releases.html The later versions (4.xx

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

@opalmirror thank you for the suggestion. I have uploaded the project and the library that generate the issue. @berak I

@opalmirror thank you for the suggestion. I have uploaded the project and the library that generate the issue. @berak I

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

@opalmirror thank you for the suggestion. I have uploaded the project and the library that generate the issue. @berak I

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

I have tested with OpenCV 3.2.0 Library and the problem still persists. In the meantime I also downloaded OpenCV 3.4.3

I have tested with OpenCV 3.2.0 Library and the problem still persists. In the meantime I also downloaded OpenCV 3.4.3

CameraCaliberation example computes NAN I am using OpenCV 3.2.0's example project for achieving CameraCalibration. I hav

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

CameraCaliberation example computes NAN I am using OpenCV 3.0's example project for achieving CameraCalibration. I have

Is ORB not a good choice because the features that it detects are not always the same from one frame to the next? Would

Thanks for the clarification @berak! Does that mean that solvePnP() also cannot be used without a reproducible pattern?

Thanks for the clarification @berak! Does that mean that solvePnP() also cannot be used without a calibration?

Using calibrateCamera without Chessboard Hi all, I am not familiar with Calib3d.calibrateCamera(): https://docs.opencv.o

calibrateCamera Hi all, I am not familiar with Calib3d.calibrateCamera(). Is it possible to calibrate the camera without

calibrateCamera Hi all, I am not familiar with Calib3d.calibrateCamera(). Is it possible to calibrate the camera without

calibrateCamera Hi all, I am not familiar with Calib3d.calibrateCamera(). Is it possible to calibrate the camera without

calibrateCamera Hi all, I am not familiar with Calib3d.calibrateCamera(). Is it possible to calibrate the camera without

List KeyPoint missing queryIdx I am doing some feature matching and I am seeing that some KeyPoints in the list don't ha

Hi @berak, I just updated my question. Thanks.

List KeyPoint missing queryIdx I am doing some feature matching and I am seeing that some KeyPoints in the list don't ha

Hi everyone,

I understand that both solvePNPRansac() and findHomography() produce a matrix correlated to the inlier and outlier keypoints.

Once I get the Mask from the findHomography(), is there a trivial way to correlate the position of the rows in the Mask to the list of matches and the keypoints (like a simple for loop shown below)?

    for (int nextPosition = 0; nextPosition < Mask.height(); ++nextPosition) {
        if(Mask.get(nextPosition,0)[0] > 0.0){              
            inlierList_good_matches.add(List_good_matches.get(nextPosition));
                    inlierList_KeyPoints1.add(List_KeyPoints1.get(nextPosition));
            inlierList_KeyPoints2.add(List_KeyPoints2.get(nextPosition));      
        }            
    }

Thanks in advance!

List KeyPoint missing queryIdx I am doing some feature matching and I am seeing that some KeyPoints in the list don't ha

I figured it out! The Ransac array will be the same size as your matches. So every position of the Ransac array will be

@Der Luftmensch would be great if you could point me to where I can learn about the pattern of ORB and FAST, or just tel

The size of the Mask matches the size of my keypoints. Does it mean that when a row in the Mask is 1, that the keypoin

The size of the Mask matches the size of my keypoints. Does it mean that when a row in the Mask is 1, that the keypoin

@Doombot, does the position of the first row in the mask correlate to the first good_match and the first row in both key

How to extract RANSAC's inlier object points from the matrix produced by solvePNPRansac() or findHomography()? Hi everyo

Thanks for the suggestion. I have elaborated on my question. It is not clear how to refine my keypoints list. Can I as

@Doombot, does the position of the first row in the mask correlate to the first good_match and the first row in both key

How to extract RANSAC's inlier object points from the matrix produced by solvePNPRansac() or findHomography()? Hi everyo

How to extract RANSAC's inlier object points from the matrix produced by solvePNPRansac() or findHomography()? Hi everyo

How to extract RANSAC's inlier object points from the matrix produced by solvePNPRansac() or findHomography()? Hi everyo

How to extract features from the inliner matrix produced by solvePNPRansac() Hi everyone, I understand that both solveP