Suppose we know that Define the ith line integral as and the ith measured line integra...

Suppose we know that Define the ith line integral as and the ith measured line integral as is noise. Now define the following

vectors Then in

matrix notation, our measurements are given by where H is an m × n matrix.

(a)Determine

(b)In an ideal world we would find that

(d) In a typical system we may have 256 × 256 pixels in a reconstructed image and 360 × 512 line integral measurements. Given these sizes, explain the main difficulty with the above approach to image

reconstruction.