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python Programming Glossary: homographyPerspective Warping in OpenCV based on know camera orientation http://stackoverflow.com/questions/12288473/perspective-warping-in-opencv-based-on-know-camera-orientation ratio . If you can do that you can trivially compute the homography matrix that maps the square rectangle to the quadrangle then..
Calculate camera world position with OpenCV Python http://stackoverflow.com/questions/14444433/calculate-camera-world-position-with-opencv-python at an area. 1 I drew a map of the area. 2 I calculated the homography by matching 4 image points to 4 points on my map using cv2.getPerspectiveTransform.. points on my map using cv2.getPerspectiveTransform 3 The H homography transforms every world coordinate to camera coordinate this.. I followed this translation np.zeros 3 1 translation 0 homography 2 rotation np.zeros 3 3 rotation 0 homography 0 rotation 1 homography..
Python Opencv SolvePnP yields wrong translation vector http://stackoverflow.com/questions/14515200/python-opencv-solvepnp-yields-wrong-translation-vector rotation of a single virtual camera in Blender 3d using homography. I am using Blender so that I can double check my results before..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on between these two sets of positions is described by a 2D homography. And the homography can be estimated using only four points... sets of positions is described by a 2D homography. And the homography can be estimated using only four points. Then you could improve..
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