Align oblique images to an ortho image

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I have 5 oblique images and one ortho image, all generated from the same camera and all cover the same scene. I want to align the oblique images to the ortho image. I found good matches from each oblique image to the ortho image. I used findHomography function to find matrix H for each image. My questions are: Can I get from H the camera's position for each image relative to the camera's position in the ortho image? Do I had enough data to figure out the camera parameters?

Any leads to help me will be much appreciated!

Thanks