What's the focal length？

montefiore-institute / midair-dataset

Example and utiliy scripts for the Mid-Air dataset

MIT License

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Closed Wanghy118 closed 2 years ago

Wanghy118 commented 2 years ago

Hi，in your paper, the FOV is set to 90°，what is the focal length?

michael-fonder commented 2 years ago

Hi, The focal length is 512 for full res pictures (1024x1024px). To be complete, the camera intrinsic matrix K is the following one:

    [fx 0  cx]   [512  0  512]
K = [0  fy cy] = [ 0  512 512]
    [0  0  1 ]   [ 0   0   1 ]

Wanghy118 commented 2 years ago

Thank you!