3 papers
cs.IT2026
Towards Digital Halftoning on Closed Manifolds--An Error Diffusion Scheme for the Torus based on Sigma-Delta Quantization along the Rank-one Lattice
Felix Krahmer, Alessandro Lupoli
Digital halftoning aims to represent continuous-tone images by binary patterns while preserving their visually relevant low-frequency content. Among the many available approaches,…
cs.IT2026
On Trajectory-Based Stability Analysis for -bit Sigma-Delta Quantization and its Application to the Second-Order Case
Rohan Joy, Felix Krahmer, Alessandro Lupoli
A state-of-the-art strategy for digitally representing a bandlimited signal is quantization. quantization schemes choose a bit sequence representing the sampl…
cs.IT2023
On the reconstruction of bandlimited signals from random samples quantized via noise-shaping
Rohan Joy, Felix Krahmer, Alessandro Lupoli +1
Noise-shaping quantization techniques are widely used for converting bandlimited signals from the analog to the digital domain. They work by ``shaping" the quantization noise so th…