wanglang3081的专栏

symmetric matrix: A(ij)=A(ji),or AT = A skew symmetric: A(ij)= -A(ji), or AT = -A Here, A(ij) is the element in ith row and jth column of matrix A. AT is the transpose of matrix A. e.g. A= [1 2

Left: Fisheye Right: Rectilinear conversion from fisheye With the advent of digital cameras having non-standard sensor sizes there seems to be quite a lot of confusion concerning focal length,