20 citations · 57 across the 13 of their papers we have counts for
13 papers
Inflation of 2D boundary ghosts and digital watermarking
Imants Svalbe, Rob Tijdeman
Projection ghosts are discrete arrays of signed values positioned so that their discrete projections vanish for some chosen set of n projection angles. Minimal ghosts are designed…
High-resolution x-ray scanning with a diffuse, Huffman-patterned probe to minimise radiation damage
Alaleh Aminzadeh, Andrew M. Kingston, Lindon Roberts +3
Scanning objects with a more tightly focused beam (for example of photons or electrons) can provide higher-resolution images. However the stronger localisation of energy deposition…
Optimizing illumination patterns for classical ghost imaging
Andrew M. Kingston, Lindon Roberts, Alaleh Aminzadeh +3
Classical ghost imaging is a new paradigm in imaging where the image of an object is not measured directly with a pixelated detector. Rather, the object is subject to a set of illu…
Families of delta-correlated arrays derived from the Fourier spectra of Huffman sequences
Imants D. Svalbe, David M. Paganin, Timothy C. Petersen
Finite discrete Huffman sequences, together with their extension to n-dimensional arrays, are highly valued because their discrete aperiodic auto-correlations optimally approximate…
Low radiation tomographic reconstruction with and without template information
Preeti Gopal, Sharat Chandran, Imants Svalbe +1
Low-dose tomography is highly preferred in medical procedures for its reduced radiation risk when compared to standard-dose Computed Tomography (CT). However, the lower the intensi…
Sharp images from diffuse beams: factorisation of the discrete delta function
I. D. Svalbe, D. M. Paganin, T. C. Petersen
Discrete delta functions define the limits of attainable spatial resolution for all imaging systems. Here we construct broad, multi-dimensional discrete functions that replicate cl…