2016-11-04 14:14:20 -0600 | received badge | ● Enthusiast |
2016-10-18 09:22:55 -0600 | commented question | Reduce reprojection error from computed Homography That helped, thanks! They had a very good depiction of the two valid conditions and how they work. |
2016-10-18 09:22:11 -0600 | received badge | ● Organizer (source) |
2016-10-17 10:04:02 -0600 | commented answer | Sobel function documentation Delta is usually used in math to refer to a change in value e.g x +/- delta |
2016-10-14 13:37:23 -0600 | answered a question | Sobel function documentation A simple search in the documentation gave me this http://docs.opencv.org/2.4/modules/im... scale is the scaling factor for the computed derivatives while delta is the delta that can be added to the output image before it is stored. borderType should be the way the border pixels are extrapolated(I'm not a 100% sure on this) |
2016-10-13 22:54:01 -0600 | commented answer | Videocapture in opencv 3.0.0 is not reading the video dll? Your original question says that you're on a linux machine and your file paths indicate the same. Have you followed the correct compile and install procedure for opencv on linux? |
2016-10-13 10:55:46 -0600 | commented answer | Videocapture in opencv 3.0.0 is not reading the video No, that's what I meant. The only other thing I can think of are unmet dependencies like ffmpeg? |
2016-10-13 09:27:19 -0600 | commented question | Reduce reprojection error from computed Homography I realized that my purely rotating camera has some translation which maybe the cause for the Homography to be bad overall. My scene does not have a planar surface as of now. I shall be testing my hypothesis today. This link states the two conditions when a Homography is valid but doesn't explain it very well :( |
2016-10-13 09:19:34 -0600 | commented answer | Videocapture in opencv 3.0.0 is not reading the video Does your program have read permissions on the video file? |
2016-10-12 15:06:35 -0600 | commented answer | Errors on compiling OpenCV on MacOS Sierra I missed this but I hope you skipped checking out the release branch for opencv_contrib as well. They need to be the same version. |
2016-10-12 14:10:40 -0600 | answered a question | Errors on compiling OpenCV on MacOS Sierra Clone the opencv repo to a new folder and don't do the checkout step i.e.
The rest of the steps can be followed as mentioned in the link. This means you will be working with the dev branch instead of the release branch. The dev branch has the fix. |
2016-10-12 13:23:32 -0600 | answered a question | Camera pose (pitch, roll, yaw) from observing ceiling from two different positions Have you tried using the matched image co-ordinates from the two images of the planar surface and computing the homography to calculate the euler angles(i.e. pitch, yaw and roll) ? P.S Apologies for the throwback as I just noticed this question is from more than a year ago. |
2016-10-12 13:15:40 -0600 | answered a question | Videocapture in opencv 3.0.0 is not reading the video You should check if the video you're trying to read is opened before trying to read a frame and convert it to grayscale. |
2016-10-12 12:21:51 -0600 | received badge | ● Editor (source) |
2016-10-12 10:23:43 -0600 | commented question | Reduce reprojection error from computed Homography Thank you for your input. I shall edit my question to be more specific :) |
2016-10-11 20:45:07 -0600 | asked a question | Reduce reprojection error from computed Homography Hello, I am computing the Homography between two images and using that to estimate the change in camera pose.
Are there any guidelines to improve the re-projection error(and so the Homography)? Or does anyone know of any literature that could help? Thanks! |