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Alex Susu's profile - activity

2015-02-12 01:44:55 -0500 asked a question SparseMat - better design


I would very much like to redesign the sparse matrix support in OpenCV. Is anybody else interested, knowledgeable on this issue?

More exactly, I need to support operations such as matrix multiplication, add, etc and they don't look to be supported. Therefore, I believe a better format for efficiency for sparse matrix representation should be CSR/CSC, not DOK (Dictionary of Keys), as it is right now. Also, I need to use in OpenCV operations on sparse matrices such as warpPerspective, etc which boil down to remap .

Thank you,


2015-02-12 01:44:55 -0500 answered a question Sparse Matrix solve

Hi, As far as it seems, OpenCV doesn't support linear systems solving for sparse matrices - does it support for dense matrices? But, there are other packages like UMFPACK (see that can do this. Now, one can, in principle, easily integrate it with OpenCV. Best regards, Alex