This paper proposes three tests to determine whether a given nonlinear device noise model is in agreement with accepted thermodynamic principles. These tests are applied to several models. One conclusion is that the standard Gaussian noise models for nonlinear devices predict thermodynamically impossible circuit behavior: those models should be abandoned. But the nonlinear shot-noise model pred...

The behavior of power-law shot noise, for which the associated impulse response functions assume a decaying power-law form, is explored. Expressions are obtained for the moments, moment generating functions, amplitude probability density functions, autoCorrelation functions, and power spectral densities for a variety of parameters of the process. For certain parameters the power spectral densit...

Shot is considered a good unit for indexing and retrieval in video databases. Existing automatic shot boundary detection techniques require many threshold parameters which are difficult to select. To address this drawback, we present in this paper a content-based approach based on camera tracking. This is accomplished by tracking the background areas of the video. This strategy can detect and i...

With the rapid growing amount of multimedia, content-based information retrieval has become more and more important. As a crucial step in content-based news video indexing and retrieval system, shot boundary detection attracts much more research interests in recent years. To partition news video into shots, many metrics were constructed to measure the similarity among video frames based on all ...

One method to estimate the intensity of inhomogeneous Poisson processes, suggested in Fryzlewicz and Nason (2004), is first to preprocess the data using the so-called Haar-Fisz transform and then to apply wavelet methods to the outcome of the first step. For this procedure it is necessary, that the outcomes of the preprocessing step can be approximated by a normal distribution. In this paper we...

BACKGROUND Lead is highly toxic to animals. Humans eating game killed using lead ammunition generally avoid swallowing shot or bullets and dietary lead exposure from this source has been considered low. Recent evidence illustrates that lead bullets fragment on impact, leaving small lead particles widely distributed in game tissues. Our paper asks whether lead gunshot pellets also fragment upon ...

We describe our shot-boundary detection experiments for the TREC-10 video track, using a multitimescale shot-change detection algorithm.

It is shown that the sample paths of Poisson shot noise with heavy-tailed semi-exponential distributions satisfy a large deviation principle with a rate function that is insensitive to the shot shape. This demonstrates that, on the scale of large deviations, paths to rare events do not depend on the shot shape.