(foundL,cornersL)=cv.FindChessboardCorners(gray_imageL,board_sz,cv.CV_CALIB_CB_ADAPTIVE_THRESH| cv.CV_CALIB_CB_FILTER_QUADS)ĬornersL=cv.FindCornerSubPix(gray_imageL,cornersL,(11,11),(-1,-1),(cv.CV_TERMCRIT_EPS. Gray_imageR=cv.CreateImage(cv.GetSize(imageR),8,1)Ĭv.CvtColor(imageR,gray_imageR,cv.CV_BGR2GRAY) Gray_imageL=cv.CreateImage(cv.GetSize(imageL),8,1)Ĭv.CvtColor(imageL,gray_imageL,cv.CV_BGR2GRAY) # capture frames of specified properties and modification of matrix valuesĬapture = cv2.VideoCapture(1) # 1 references Zed camera, cange as necessaryĬapL = frame # left cameraĬapR = frame # right camera Intrinsic_matrixR=cv.CreateMat(3,3,cv.CV_32FC1)ĭistortion_coefficient_R=cv.CreateMat(5,1,cv.CV_32FC1) Point_countsR=cv.CreateMat(n_boards,1,cv.CV_32SC1) However if you want to recalibrate you can use our ZED Calibration tool (easiest solution) or other software (openCV, ROS stereo camera calibration node.) but in the later, you will need to provide unrectified images which are currently not accessible. So you can ignore the calibration process, it's already taking care of. Object_pointsR=cv.CreateMat(n_boards*board_n,3,cv.CV_32FC1) Hi, The images outputting from the ZED SDK are already rectified. How to save wavepoints rosparam set not working Theorical Python use in ROS. Image_pointsR=cv.CreateMat(n_boards*board_n,2,cv.CV_32FC1) how to get linear and angular velocity from zed camera odometry. Point_countsL=cv.CreateMat(n_boards,1,cv.CV_32SC1) Object_pointsL=cv.CreateMat(n_boards*board_n,3,cv.CV_32FC1) Image_pointsL=cv.CreateMat(n_boards*board_n,2,cv.CV_32FC1) #board_sz=(board_w,board_h) #size of boardīoard_w=(9) # number of horizontal cornersīoard_n=board_w*board_h # no of total cornersīoard_sz=(board_w,board_h) #size of board #board_n=board_w*board_h # no of total corners #board_h=int(sys.argv) # number of vertical corners #board_w=int(sys.argv) # number of horizontal corners ![]() (It partially rectified a section of the image.) #!usr/bin/python This issue is not a question, feature request, or anything other than a bug report directly related to this project. Before opening a new issue, please search existing issues. GitHub Preliminary Checks This issue is not a duplicate.I tested it before I made any changes and it worked, albeit with some odd results. Unable to open ZED, issue with calibration It runs a calibration and rectification of a camera with live video feed. Generally: cap = cv2.VideoCapture(1) # video sourced from Zed camera We downloaded the file but are unsure what directory to place it in. I figured out a quick-and-dirty method of splitting the video feed. When running the follower demo, we get the warning cameracalibration package is missing. For now, all I want to do is calibrate my camera so I can start estimating sizes and distances of (first known, then unknown) objects.įor reference, this is what the Zed camera's video looks like: However, this method produces fewer headaches than buying a new computer which contains an NVIDIA GPU just for the sake of using the proprietary software (which may or may not allow of the end goal). The input video feed leads to some complications. I want to calibrate and rectify my Zed camera.
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