Two Dimensional Problems Clause Samples

Two Dimensional Problems. ‌ Extending this linear algebraic formulation to two dimensional imaging prob- lems is not so difficult, but the notation can be a bit cumbersome. To fa- cilitate readability, we assume all images are square (e.g., n n) arrays of pixel values, and that the PSF is separable. Suppose that Y is an n n image that is obtained by convolving the m m PSF H with (an unknown, true) image X true, where n 2m 1. Then the convolution model implies that for each k, l 0, 1, . . . , n ▇,