for a 3×3 camera matrix, could skew factor be negative?
assume the camera matrix is in the form :
[fx s u0]
[0 fy v0]
[0 0 1 ]
could s be negative?
for a 3×3 camera matrix, could skew factor be negative? assume the camera matrix
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
for a 3×3 camera matrix, could skew factor be negative?
assume the camera matrix is in the form :
[fx s u0]
[0 fy v0]
[0 0 1 ]
could s be negative?
The skew factor you list accounts for the shape of the pixels as explained (somewhat) here. s could be negative if the angle alpha in figure 3.3 becomes negative (i.e. when the pixels “leans” to the left rather than to the right). I’m not sure this occurs in practice though, there are not many cases where the assumption of recangular pixels, even square pixels, is not valid these days.