Comments (5)
from zhou-accv-2018.
@dkoppel11 the issue is that your input violates one of the core assumptions of the method. I invite you to read section 3.1 of the original paper. The input your supplied is exactly one of those degenerate configurations mentioned in that section.
This means that these solvers do not work for ‘degenerate’ inputs, e.g., when one or more of the input quadrics are in fact planes or curves or when certain coefficients vanish
So this is not a bug per se, but I will make sure the implementation throws an exception warning about an ill-conditioned input.
from zhou-accv-2018.
Addressed in c4760a3
from zhou-accv-2018.
from zhou-accv-2018.
I understand you're supplying a human interpretable case, but E3Q3 does not handle all possible quadrics.
What makes this a "bad" intersection of sphere?
Check equation (4) of the paper. See that matrix A, it needs to be invertible. WIth the coefficients you're supplying, it is not. That is the assumption that your input is breaching.
from zhou-accv-2018.
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from zhou-accv-2018.