2014 A small-signal cell-model of the CCD is proposed, which is shown to account fully for frequency-response and noise performances of the device. The analysis applies both to shiftregister (analog or digital) structures and to imaging CCDs, and includes the effects of clock delay, transfer inefficiency, storage and transfer noises, and sampling-generated aliasing (Moiré). REVUE DE PHYSIQUE AP...

SUMMARY Temporal aliasing errors resulting from the undersampling of non-tidal atmospheric as well oceanic mass variations constitute largest limitation towards retrieval monthly gravity solutions based on GRACE and GRACE-FO satellite missions. Their mitigation is thus a primary goal current research. Unfortunately, two-step co-parametrization approach proposed for application in Bender-type sc...

Shadow mapping has been extensively used for real-time shadow rendering in 3D computer games, though it suffers from the inherent aliasing problems due to its image-based nature. The aliasing errors in shadow mapping consist of perspective aliasing error and projection aliasing error. In this paper, we propose a novel shadow-map reparameterization to reduce perspective aliasing for varying view...

Multi-level factorial designs are useful in experiments but their aliasing structure are complex compare to two-level fractional factorial designs. A new framework is proposed to study the complex aliasing of those designs. Geometric aliasing is deened for factorial designs. It generalize of the aliasing relation of regular two level fractional fac-torial designs to all factorial designs. Based...

Type systems that track aliasing can verify state-dependent program properties. For example, such systems can verify that a program does not access a resource after deallocating the resource. The simplest way to track aliasing is to use linear types, which on the surface appear to ban the aliasing of linear resources entirely. Since banning aliasing is considered too draconian for many practica...

Correlation filters (CFs) are well established and useful tools for a variety of tasks in signal processing and pattern recognition, including automatic target recognition and tracking, biometrics, landmark detection, and human action recognition. Traditionally, CFs have been designed and implemented efficiently in the frequency domain using the discrete Fourier transform (DFT). However, the el...

Currently, passive robots are designed following a trial and error process in which the existence of a stable walking cycle for a given passive robot’s model is analyzed using Poincaré maps. The standard stability analysis procedure suffers from discretization aliasing, and it is not able to deal with complex passive models. In this paper a methodology that allows finding conditions on the robo...