On non-stationary cyclic convolution and combination
نویسندگان
چکیده
منابع مشابه
On non-stationary convolution and inverse convolution
Recursive inverse filtering with non-stationary filters is becoming a useful tool in a range of applications, from multi-dimensional inverse problems to wave extrapolation. I formulate causal non-stationary convolution and combination and their adjoints in such a way that it is apparent that the corresponding non-stationary recursive filters are true inverse processes. Stationary recursive inve...
متن کاملApproximate Non-Stationary Convolution Using a Block Separable Matrix
Lens-based vision systems such as human eyes and cameras focus on one particular distance from the lens. The rest of a viewed image is out of focus with a degree which varies according to the distance from the object in focus. This is called depth of field. Computer generated images are most quickly and easily rendered entirely in perfect focus, causing them to appear unnatural and cluttered. M...
متن کاملA Note on Fast Cyclic Convolution
This note presents a new algorithm for computing the cyclic convolution of two vectors over a commutative ring. The algorithm requires n(nj+l) •.. (n^+l)^^ multiplications for the convolution of two n-vectors, where n = n^...n^ is a factorization of n into factors which are pairwise relatively prime.
متن کاملModelling Non-stationary and Non-separable Spatio-Temporal Changes in Neurodegeneration via Gaussian Process Convolution
Modelling longitudinal changes in organs is fundamental for the understanding of biological and pathological processes. Most of the previous works on spatio-temporal modelling of image time series relies on the assumption of stationarity of the local spatial correlation, and on the separability between spatial and temporal processes. These assumptions are often made in order to lead to computat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 2016
ISSN: 0024-3795
DOI: 10.1016/j.laa.2016.03.002