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getoptimalnewcameramatrix function for omndirectional camera? I am working on stereo rectification of wide FOV fisheye l

getoptimalnewcameramatrix function for omndirectional camera? I am working on stereo rectification of wide FOV fisheye l

@buubuu I have edited the code.

@buubuu you can do like this, #include <iostream> #include <opencv2/highgui/highgui.hpp> #include <openc

@buubuu sorry for late reply. I thought form in your image wont be tilted as per given in first image. It is easy to ext

Okay. Welcome!!

@buubuu upload your image here. You need to adjust threshold value once correctly. To make it robust you can use adaptiv

Check calibration lecture from computer vision fundamentals by Dr. Mubarak Shah

@buubuu upload your image here.

and try to image at different ranges, like very close , normal, very far. Also take images at edges. Hope so this should

Okay. I think you should try to take dataset properly. You chess board should cover all the regions in fov. Try to take

How many stereo pairs you are using for calibration ? Actually opencv fisheye module can calibrate fisheye image around

@Kristi986 This is not the answer.

@yeser their is something wrong with your extrinsic and intrinsic parameters. What is the FOV of your fisheye image? Try

@yeser their is something wrong with your extrinsic and intrinsic parameters. What is the FOV of your fisheye image? Try

Okay so that is serial not parallel. That will be slow.

Whatever I have understood from your question and video. I have written my answer accordingly.

@uraqtlee You can do like this, #include "opencv2/imgproc/imgproc.hpp" #include <opencv2/highgui/highgui.hpp> #in

@reso737 you want to me to edit his code for you ? I will ask you to again go through the explanation of his blog. This

@reso737 you want to me to edit his code for you ?

@reso737 You know multi-threading ? Specify which line you are not understanding. Try to check online tutorial on multi-

@reso737 You know multi-threading ? Specify which line you are not understanding. Try to check online tutorial on multi-

@reso737 You know multi-threading ? Specify which line you are not understanding. Try to check online tutorial on multi-

@reso737 Where is C? You know multi-threading ? Specify which line you are not understanding.

@tejas Check approxPolyDp opencv fuction.

@reso737 follow below blog. Link: https://putuyuwono.wordpress.com/2015/05/29/multi-thread-multi-camera-capture-using-o

capture it parallel using multithreading.

@reso737 From your question, what I am understood is that, you have 4cameras and you have to take video from 4 cameras.

@reso737 From your question, what I am understood is that, you have 4cameras and you have to take video from 4 cameras.

@reso737 From your question, what I am understood is that, you have 4cameras and you have to take video from 4 cameras.

@minimanimo.sorry for late reply. I was busy with my convocation. You can do like this, link: https://jayrambhia.com/blo

There are some good blogs. 1. Harris blog 2. OpenCV SRF 3. Aishack. There are a good list of resources mentioned here.

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

@minimanimo I will first answer que 2. ans2: I am not discarding some frames. I am saying, here we are detecting 1st fra

@buubuu you can do like this, #include <iostream> #include <opencv2/highgui/highgui.hpp> #include <openc

Type following command on terminal to check list of video devices connected to your system. ls ~/../../dev/video* If vi

@minimanimo You can do this in real time using above algo. Sorry for late reply.

It is not necessary that you should compare it with static frame(ground truth). See Take first frame as a reference wher

To track barcode, you can use optical flow or homography. I think this will solve your problem.

Yes you can set specific flags needed by you. I prefer using GUI or ccmake . Enter following commands in your terminal

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

@slayer2309 you absolutely right. If you are getting so much confused with rotation and translation. Then just create 4

Nice question. I think there is no way to solve using PnP or homography. As you have lesser point to point correspondenc

@JT3D have you check estimated R and T are correct. Can you put that matrix over here ?

@shalinder whenever you ask questions on the forum, please be clear with the question. Don't just put the error as it is