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ovis: force camera extent update to get correct bbox #3735 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake --- fixes #3732
37 lines
1.0 KiB
Python
37 lines
1.0 KiB
Python
import numpy as np
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import cv2 as cv
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# aruco
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adict = cv.aruco.getPredefinedDictionary(cv.aruco.DICT_4X4_50)
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cv.imshow("marker", adict.generateImageMarker(0, 400))
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# random calibration data. your mileage may vary.
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imsize = (800, 600)
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K = cv.getDefaultNewCameraMatrix(np.diag([800, 800, 1]), imsize, True)
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# AR scene
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cv.ovis.addResourceLocation("packs/Sinbad.zip") # shipped with Ogre
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win = cv.ovis.createWindow("arucoAR", imsize, flags=0)
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win.setCameraIntrinsics(K, imsize)
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win.createEntity("figure", "Sinbad.mesh", (0, 0, 5), (1.57, 0, 0))
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win.createLightEntity("sun", (0, 0, 100))
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# video capture
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cap = cv.VideoCapture(0)
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cap.set(cv.CAP_PROP_FRAME_WIDTH, imsize[0])
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cap.set(cv.CAP_PROP_FRAME_HEIGHT, imsize[1])
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while cv.ovis.waitKey(1) != 27:
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img = cap.read()[1]
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win.setBackground(img)
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corners, ids = cv.aruco.detectMarkers(img, adict)[:2]
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cv.waitKey(1)
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if ids is None:
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continue
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rvecs, tvecs = cv.aruco.estimatePoseSingleMarkers(corners, 5, K, None)[:2]
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win.setCameraPose(tvecs[0].ravel(), rvecs[0].ravel(), invert=True)
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