Reconstruction of a bilevel function such as a bar code signal in a partially blind deconvolution problem is an important task in industrial processes. Existing methods are based on either the local approach or the regularization approach with a total variation penalty. This article reformulated the problem explicitly in terms of change points of the 0-1 step function. The bilevel function is t...

Eventos extremos como El Niño y La Niña modifican la variabilidad hidrológica en muchos lugares del planeta, generando impactos significativos el bienestar socio económico país; empero, los procesos físicos dinámicas atmosféricas vinculados a generación al desarrollo de precipitaciones extremas, están aun pobremente estudiados. En presente investigación, se analiza temporal espacial precipitaci...

Manual fingerprint classification proceeds by carefully inspecting the geometric characteristics of major ridge curves in a fingerprint image. We propose an automatic approach of identifying the geometric characteristics of ridges based on curves generated by the orientation field called orientation field flow curves (OFFCs). The geometric characteristics of OFFCs are analyzed by studying the i...

Methods to detect local features have been made to be invariant to many transformations. So far, the vast majority of feature detectors consider robustness just to over-land effects. However, when capturing pictures in underwater environments, there are media specific properties that can degrade the visual quality the captured images. Little work has been made in order to study the robustness t...

Most research on F0 has attempted to model the behaviour of an entire linguistic community (e.g of speakers of US or UK English, French, Japanese etc). In this research, we attempt in two analyses to characterize some prosodic aspects of individual differences within the speaker community. For this, the statistical distributions of F0 and intensity parameters were examined. It was found in the ...

We realize a one-dimensional Josephson junction using quantum degenerate Bose gases in a tunable double well potential on an atom chip. Matter wave interferometry gives direct access to the relative phase field, which reflects the interplay of thermally driven fluctuations and phase locking due to tunneling. The thermal equilibrium state is characterized by probing the full statistical distribu...