Texture synthesis is a well-established area, with many important applications in computer graphics and vision. However, despite their success, techniques are not used widely practice because the creation of good exemplars remains challenging extremely tedious. In this paper, we introduce an unsupervised method for analyzing texture content across multiple scales that automatically extracts from natural images. Unlike existing methods, which require extensive manual tuning, our fully...

Noise pollution is one of the topmost quality life issues for urban residents in United States. Continued exposure to high levels noise has proven effects on health, including acute such as sleep disruption, and long-term hypertension, heart disease, hearing loss. To investigate ultimately aid mitigation noise, a network 55 sensor nodes been deployed across New York City over two years, collecting sound pressure level (SPL) audio data. This cumulatively amassed 75 years calibrated,...

Abstract Advances in technology coupled with the availability of low‐cost sensors have resulted continuous generation large time series from several sources. In order to visually explore and compare these at different scales, analysts need execute online analytical processing (OLAP) queries that include constraints group‐by's multiple temporal hierarchies. Effective visual analysis requires be interactive. However, while existing OLAP cube‐based structures can support interactive query...

We follow the trajectories of phase singularities at nulls intensity in speckle pattern waves transmitted through random media as frequency incident radiation is scanned microwave experiments and numerical simulations. Phase are observed to diffuse with a linear increase square displacement shift. The product diffusion coefficient photon medium proportional effective sample length. This provides method for characterizing motion dynamic material systems.

An understanding of pedestrian dynamics is indispensable for numerous urban applications including the design transportation networks and planing business development. Pedestrian counting often requires utilizing manual or technical means to count individuals in each location interest. However, such methods do not scale size a city new approach fill this gap here proposed. In project, we used large dense dataset images New York City along with computer vision techniques construct...

We have measured first and second order statistics of the velocity phase singularities v in evolving speckle patterns microwave radiation transmitted through random quasi-1D samples as frequency is swept relate these to global evolution. When normalized by standard deviation fractional intensity change, probability distribution correlation function approach those for Gaussian fields even localized waves. Analogous results are found total transmission. This provides a unified framework...

Speckle patterns of arbitrary resolution are obtained by applying the sampling theorem to measurements two orthogonal components microwave field transmitted through multiply scattering samples. Core structures phase singularities, critical points, and polarization singularities explored. We find that equiphase lines connect with opposite topological signs except for bifurcation lines, which run a saddle point, in agreement predictions Freund [Phys. Rev. E25, 2348 (1995)]. observe hyperbolic...

Texture is an essential feature in modeling the appearance of objects and instrumental making virtual appear interesting and/or realistic. Unfortunately, obtaining textures a labor intensive task requiring parameter tuning for procedural methods or careful photography post-processing natural images. Many texture synthesis techniques have been developed to generate arbitrary spatial extent, but these require user first produce exemplar consisting solely desired texture. We present fast method...

Interactive tools help users filter relevant information from massive online sources, like news feeds and discussion forums, by enabling them to externalize their preferences. However, users' goals preferences are often complex comprised of data attributes a user's subjective judgements over these attributes. For instance, when filtering articles based on newsworthiness, the system must capture both recency shareability article, along with personal flexible assessment sentiment. While most...

Models of both the shape and material properties physical objects are needed in many computer graphics applications. In design applications, even if is not needed, it desirable to start with existing non-planar objects. We consider a system capture appearance focus particularly on that exhibit significant subsurface scattering inter-reflection effects. present preliminary results from uses coded light set small, inexpensive projectors coupled commodity digital cameras.

We find generic diffusion of phase singularities in microwave speckle patterns as the frequency is scanned and numerical simulations time domain. These results give photon coefficient through random medium.

We find that phase singularities in microwave speckle patterns transmitted through disordered samples diffuse as the frequency is scanned and relate singularity diffusion coefficient to photon medium.

Subsurface scattering gives a distinct look to many everyday objects. However, until now, systems acquire subsurface have assumed that the displacement and angle of are completely independent incident. While this independence substantially simplifies acquisition rendering materials where it holds true, makes other impossible. In paper, we demonstrate system can quickly full anisotropic at given point. Unlike existing commercial systems, our be assembled from off-the-shelf optical component...